International Calculators

Allocates Section 80C (₹1.5L cap), age-tiered Section 80D health insurance, and Section 80CCD(1B) NPS deductions correctly across their separate statutory caps, and estimates old-regime tax savings.

Computes the four-installment advance tax schedule (15/45/75/100%) and Section 234B/234C interest for shortfalls, based on estimated annual tax and actual payments made.

Look up the exact monthly contribution required for your Atal Pension Yojana (APY) target pension slab based on your entry age, using the official PFRDA contribution table.

Compares India's domestic Section 195 withholding rate against the applicable DTAA treaty rate for NRIs resident in 6 major countries (USA, UK, UAE, Canada, Australia, Singapore), applying Section 90(2)'s lower-of-the-two relief rule to interest and dividend income.

Work out what supporting elderly parents in India costs each month and the lump sum that would fund the whole commitment, inflating household and medical costs separately and applying the Section 80D deduction.

Project ELSS SIP/lump-sum maturity value and compute the old-regime-only Section 80C tax benefit, with an explicit 3-year lock-in check.

Calculate an employer's total monthly EPF-related cost, splitting the 12% match between EPF and EPS, plus EDLI and admin charges, with the statutory ₹15,000 wage ceiling toggle.

Project your India EPF corpus to retirement using the correct 12%/12% employee-employer contribution split (with the 8.33% EPS diversion capped at the wage ceiling), the current EPFO interest rate, and the 5-year tax-free withdrawal rule.

Estimate your monthly Employees' Pension Scheme (EPS) pension using the official pensionable-salary-times-service-divided-by-70 formula, the ₹15,000 wage ceiling, and the 20-year bonus service credit.

Compute LTCG (12.5% above ₹1,25,000 annual exemption) and STCG (flat 20%) tax on Indian listed equity/equity mutual fund gains under the Finance (No.2) Act 2024 reform.

Computes ESOP taxation in two stages -- perquisite tax at exercise (FMV minus exercise price, taxed as salary) and capital gains tax at eventual sale -- using the Section 49(2AA) FMV step-up cost basis.

Computes statutory gratuity under the Payment of Gratuity Act's 15/26 formula (with correct 6-month rounding) and the Section 10(10) tax exemption up to the ₹20 lakh ceiling.

Add or remove GST at India's current 0/5/18/40% rate slabs and split the tax into CGST/SGST or IGST depending on whether the supply is intra- or inter-state.

Combines EMI amortization with India's Sec 22/Sec 131 home-loan interest deduction overlay across old/new tax regime and self-occupied/let-out scenarios.

Computes HRA exemption under Section 10(13A)/Rule 2A as the least of actual HRA received, rent paid minus 10% of salary, and the metro (50%) or non-metro (40%) salary limit.

Genuine decision-support tool for the two-city HRA-plus-home-loan scenario, combining the HRA least-of-three formula with the Sec 22/131 home-loan overlay and a plain-language "can I claim both" verdict.

Calculate your Kisan Vikas Patra (KVP) maturity value using the current notified doubling period, for any holding period from the 30-month lock-in onward.

Computes the Section 10(10AA) leave encashment exemption as the least of four statutory limits, including the current ₹25 lakh ceiling and the 30-days-per-year-of-service leave cap.

Models BBMP Bengaluru's Unit Area Value system and BMC Mumbai's Capital Value System precisely; deliberately excludes Delhi/Chennai/Hyderabad/Kolkata, whose current rate tables could not be verified.

Project your NPS Tier I corpus to retirement and apply the current (December 2025) PFRDA annuitization rule to see your mandatory annuity purchase and available lump sum.

Compares fully tax-exempt NRE account interest against fully taxable NRO account interest (30% TDS plus surcharge and cess) for NRIs, reproducing the commonly-cited 31.2% and 34.32% effective NRO withholding rates at different surcharge tiers.

Combines Section 195 capital gains TDS on an NRI's asset sale with a FEMA repatriation plan against the USD 1 million per financial year NRO ceiling, flagging the Form 15CA/15CB Chartered Accountant certification threshold and projecting multi-year repatriation when proceeds exceed the annual limit.

Computes an NRI's India income tax on India-sourced income under FY 2025-26 slab rates, with Section 6 residency-status determination and the Section 87A rebate exclusion that applies to NRIs.

Computes Section 195 TDS on an NRI's Indian property sale, including the 12.5% flat LTCG rate, capped surcharge, and the Form 13 Lower/Nil Deduction Certificate mechanism that limits TDS to the net gain instead of the full sale price.

Compares old vs new tax regime total tax liability for FY2025-26, identifies the better regime, and finds the breakeven old-regime deduction amount needed to match the new regime.

Calculate the maturity value of a Post Office Recurring Deposit or Time Deposit using India Post's official quarterly-compounding formulas and current notified rates.

Project your India PPF account to maturity using the current quarterly-notified interest rate, the ₹1.5 lakh annual contribution cap, the 15-year lock-in, and optional 5-year extension blocks.

Computes deemed presumptive income under Section 44AD (6%/8% of turnover) and 44ADA (50% of receipts), checks eligibility against current thresholds, and compares tax liability against actual profit-based taxation.

Calculate state-wise monthly/annual professional tax deducted from salary across 8 states/UTs, including Maharashtra's gender-differentiated slab and states that levy no professional tax at all.

Compare 12.5%-without-indexation and 20%-with-indexation LTCG methods for Indian property acquired before 23 July 2024 and pick whichever produces less tax.

State-selector stamp duty and registration cost calculator for 8 states/UTs, modeling each state's genuine female-buyer rebate mechanic where one exists.

Split a REIT/InvIT distribution into its four Section 115UA components and tax each one distinctly, including the post-2026 unconditional dividend exemption.

Calculate your guaranteed quarterly and annual income from a Senior Citizens Savings Scheme (SCSS) deposit at the current notified rate, up to the ₹30 lakh investment cap.

Computes Section 89(1) relief on salary arrears/advance salary via the Rule 21A multi-year tax comparison, reducing tax caused purely by the timing of receipt.

Compute SGB interest tax and the maturity capital-gains exemption, modeling the 2026 rule limiting the exemption to original subscribers held to maturity.

Project your Sukanya Samriddhi Yojana (SSY) account to its 21-year maturity using the current quarterly-notified interest rate and the 15-year contribution window.

Estimates TDS across salary (Section 192, average-rate method), FD interest (Section 194A), and rent (Section 194-I), using FY2025-26's post-Finance-Act-2025 thresholds and rates.

Compare buy-to-let held personally against a limited company, modelling the section 24 restriction on one side and Corporation Tax plus dividend tax on extraction on the other, showing how the answer reverses when there is no mortgage.

Calculate stamp duty on an additional residential property in England and Northern Ireland, showing the banded charge alongside the 5% surcharge levied on the entire purchase price and the further 2% for non-UK residents.

Calculate UK Capital Gains Tax due on a gain, splitting it across the 18% and 24% rate bands after the £3,000 Annual Exempt Amount.

Calculate the UK High Income Child Benefit Charge, the 1%-per-£200 taper between £60,000 and £80,000 adjusted net income, and net Child Benefit retained.

Calculate UK Corporation Tax with the small profits rate, the main rate and Marginal Relief in between, including the effect of associated companies on the limits and pro-rating for short accounting periods.

Estimate England Council Tax by valuation band across six major councils for 2026/27, including the 25% single-occupant discount.

Calculate UK dividend tax for 2026/27 at the increased 10.75% and 35.75% rates plus the unchanged 39.35% additional rate, after the £500 allowance, showing how salary taxed first determines which dividend rate applies.

Calculate UK Income Tax for 2026/27 under either the three rUK bands or the six Scottish bands, including the Personal Allowance taper above £100,000, the savings starting rate band and Personal Savings Allowance, and the dividend allowance and rates.

Calculate UK Inheritance Tax due on an estate, including the nil-rate band, residence nil-rate band with taper, transferable allowances, spousal exemption, and the reduced 36% charity rate.

Track ISA contributions across Cash, Stocks & Shares, Lifetime, and Innovative Finance ISAs against the £20,000 annual allowance, including the Lifetime ISA's 25% bonus.

Calculate the true value of a Marriage Allowance claim, netting the higher earner's £252 saving against the tax the transferring partner starts paying once their income exceeds £11,310, with the Scottish basic rate ceiling applied.

Estimate UK mortgage borrowing capacity from an income multiple, then test it against an adjustable affordability stress rate and your existing commitments, with headroom measured against take-home pay rather than gross income.

Calculate UK National Insurance due for employees (Class 1) or the self-employed (Class 4), plus the employer's Class 1 secondary contribution after the Employment Allowance.

Work out the combined 31 January Self Assessment bill, showing the balancing payment for the year just filed alongside the first payment on account for the year already running, and both exemption tests.

Calculate the UK pension Annual Allowance after the high-earner taper, plus available carry-forward from the previous three tax years.

Calculate tax on a pension lump sum for 2026/27, with the 25% tax-free element capped by the £268,275 Lump Sum Allowance, the taxable balance stacked on other income, and an estimate of emergency month-1 tax to reclaim.

Calculate Capital Gains Tax on a UK residential property disposal, splitting the gain across the 18% and 24% rates according to the basic rate band your income leaves unused, with the 60-day reporting and payment deadline explained.

Calculate tax on UK rental income for 2026/27 under the section 24 finance cost restriction, showing property profit measured before interest, the 20% tax reduction on the lowest of three figures, and any finance costs carried forward.

Calculate the true cost of pension salary sacrifice, comparing it against a personal pension contribution of the same size and showing the employee and employer National Insurance savings that make the two routes differ.

Calculate tax on UK savings interest for 2026/27, showing how much of the £5,000 starting rate band survives your other income and how the Personal Savings Allowance of £1,000, £500 or nil applies on top.

Calculate Stamp Duty Land Tax on an England or Northern Ireland residential purchase, including first-time-buyer relief, the additional-property surcharge, and the non-UK-resident surcharge.

Calculate UK student loan repayments across Plans 1, 2, 4 and 5 at 9% above each threshold, including postgraduate loans charged at 6% concurrently rather than instead of an undergraduate plan.

Calculate UK take-home pay for 2026/27 after Income Tax on either the rUK or Scottish bands, Class 1 National Insurance, student loan repayments and pension contributions, with the monthly equivalent.

Add VAT to a net price or remove it from a gross price at the standard, reduced or zero rate, using the VAT fraction for reverse calculations, with a check against the £90,000 registration and £88,000 deregistration thresholds.

BC First Time Home Buyers' PTT Exemption Calculator (2026) - math and vectors complete, content pending.

Canada Capital Gains Tax Calculator (s. 38(a) One-Half Inclusion Rate)

Canada Child Care Expense Deduction Calculator (Income Tax Act s. 63)

Computes combined CPP and OAS monthly/annual retirement income, including the OAS clawback above the recovery threshold, with a comparison of claiming at 65 vs. delaying to 70.

Canada Dividend Tax Credit Calculator (Gross-Up Under s. 82 and Credit Under s. 121)

Canada FHSA Calculator (First Home Savings Account, Income Tax Act s. 146.6)

Canada First-Time Home Buyer Calculator (HBP, FHSA and the s. 118.05 Tax Credit)

Canada GST and HST Calculator (Excise Tax Act s. 165)

Canada Income Tax Calculator (Federal s. 117(2) Brackets Plus Provincial Tax)

Calculates Ontario provincial Land Transfer Tax (plus Toronto's additional municipal LTT) or BC Property Transfer Tax, including first-time-buyer rebates for each.

Canada Mortgage Affordability Calculator (GDS, TDS and Semi-Annual Compounding)

Canada OAS Clawback Calculator (Income Tax Act s. 180.2 Recovery Tax)

Projects RESP growth including the 20% CESG government match up to its lifetime cap, and computes the income-tested Canada Child Benefit (CCB) monthly payment per child by age band.

Computes Canadian RRSP contribution room (18% of prior-year earned income plus carry-forward), the immediate tax refund at the user's marginal rate, and growth projection to retirement.

Canada Small Business Deduction Calculator (Income Tax Act s. 125)

Canada Take-Home Pay Calculator (Federal Tax, Provincial Tax, CPP and EI)

Computes cumulative TFSA contribution room since 2009 based on the age the user turned 18, accounting for prior contributions and withdrawals, plus tax-free growth projection.

Calculates the Ontario provincial Land Transfer Tax band by band, distinguishing the single-family schedule that reaches 2.5% from the other-land schedule that stops at 2.0%, and applying the C$4,000 first-time homebuyer refund as a cap on the tax.

Stacks the Toronto Municipal Land Transfer Tax on the Ontario provincial tax, models the graduated high-value tiers that took effect on 1 April 2026, applies both first-time purchaser reliefs and tests the section 760-10 minimum tax rule.

Australia Capital Gains Tax Calculator (2026-27 and the 2027 Reform)

Calculates Division 293 additional tax on concessional super contributions above the A$250,000 income threshold, and separately computes the First Home Super Saver scheme's maximum releasable amount and estimated withholding tax.

Australia Division 7A Loan Calculator (Minimum Yearly Repayment)

Australia Franking Credits Calculator (Gross-Up and Refund)

Australia Fringe Benefits Tax Calculator (Car Benefits and Gross-Up)

Australia GST Calculator (Add, Extract and BAS)

Calculates compulsory HECS-HELP repayment under the post-1-July-2025 marginal system and projects the debt balance forward year by year, including annual indexation and optional voluntary repayments.

Australia Income Tax Calculator (2026-27 Rates)

Australia Land Tax Calculator (All States and Territories)

Australia Medicare Levy Calculator (Including Low-Income Shading)

Australia Medicare Levy Surcharge Calculator

Australia Negative Gearing Calculator (Section 26-155 Quarantining)

Calculates Fringe Benefits Tax on a novated lease car using the statutory formula method, showing how an Employee Contribution Method payment or an EV exemption can reduce or eliminate the FBT liability.

Australia Payroll Tax Calculator (Grouping and Interstate Apportionment)

Australia Personal Tax Offsets Calculator (LITO, SAPTO and the New WATO)

Calculates Australian stamp duty (transfer duty) for NSW, Victoria, and Queensland property purchases, including each state's own first-home-buyer exemption/concession thresholds and Queensland's nil-duty new-home concession.

Projects an Australian superannuation balance to retirement using the current 12% Superannuation Guarantee rate, concessional contribution caps with 5-year carry-forward, and compounded investment growth net of the 15% contributions tax.

Australia Take-Home Pay Calculator (2026-27)

Australia Transfer Balance Cap Calculator (Proportional Indexation)

Germany Capital Gains Tax Calculator 2026 (Abgeltungsteuer, Sparer-Pauschbetrag, Soli & Kirchensteuer) - math and vectors complete, content pending.

Computes Germany's flat 2026 Kindergeld child benefit (€259/month/child) and the Elterngeld parental allowance's sliding income-replacement rate, floor/cap, Geschwisterbonus, and Mehrlingszuschlag together.

Germany Church Tax Calculator -- Kirchensteuer & Kappung (2026) - math and vectors complete, content pending.

Germany Freelancer Tax Calculator 2026 (Freiberufler: Income Tax, VAT & Why There Is No Gewerbesteuer) - math and vectors complete, content pending.

Calculate German income tax for 2026 using the exact five-zone §32a EStG tariff formulas rather than a bracket approximation, with Ehegattensplitting, the Solidaritätszuschlag Freigrenze and church tax at 8% or 9% by federal state.

Germany Inheritance Tax Calculator 2026 (Erbschaftsteuer: Three Tax Classes, Allowances & Rates) - math and vectors complete, content pending.

Computes German net salary from gross pay, applying the 2026 §32a EStG income tax formula, solidarity surcharge, church tax, and all four employee social insurance contributions, with Ehegattensplitting for married couples.

Applies the post-2025-reform Bundesmodell Grundsteuer formula (Grundsteuerwert x Steuermesszahl x Hebesatz) with social-housing and heritage-building reductions, flagging the 5 states that use a different model entirely.

Calculates Germany's Grunderwerbsteuer real estate transfer tax for any of the 16 states' current 2026 flat rates (3.5%-6.5%), with total-cost and cross-state comparison output.

Germany Rental Income Tax Calculator 2026 (Vermietung und Verpachtung, AfA & the Ten-Year Rule) - math and vectors complete, content pending.

Computes Renten-, Arbeitslosen-, Kranken- and Pflegeversicherung for 2026 on both the employee and employer side, against the two separate contribution ceilings of EUR 101,400 and EUR 69,750, with the childless surcharge, the per-child reductions and the Saxony split.

Germany Trade Tax Calculator 2026 (Gewerbesteuer, Hebesatz & the §35 EStG Credit) - math and vectors complete, content pending.

Germany VAT Calculator 2026 (Umsatzsteuer 19% / 7% & Kleinunternehmerregelung) - math and vectors complete, content pending.

Solidaritätszuschlag Calculator 2026 (Freigrenze, Milderungszone & the 11.9% Glide Zone) - math and vectors complete, content pending.

Calculate Irish Capital Gains Tax at the flat 33% rate, applying losses before the non-transferable €1,270 annual exemption, and showing which of the two payment windows applies.

Computes Ireland's flat 33% Capital Acquisitions Tax on a gift or inheritance against the correct lifetime Group A/B/C threshold, with aggregation against prior benefits and the EUR3,000 small gift exemption.

Ireland CGT Calculator 2026: Property Disposal with PPR Relief - math and vectors complete, content pending.

Calculate Irish Corporation Tax across all three rates, showing that the headline 12.5% applies to trading income only while passive income is taxed at 25% and chargeable gains at 33%, and reporting the blended effective rate.

Ireland Help to Buy Calculator 2026 (HTB Refund up to €30,000) - math and vectors complete, content pending.

Computes combined 2026 Irish Income Tax, USC, and PRSI on gross salary, correctly applying joint assessment for Income Tax only (not USC/PRSI) for married couples, with the full standard rate band, tax credit, USC threshold, and PRSI taper logic.

Ireland Local Property Tax Calculator 2026 (LPT Bands & Local Adjustment Factor) - math and vectors complete, content pending.

Ireland Mortgage Affordability Calculator 2026 (Central Bank LTI & LTV Limits) - math and vectors complete, content pending.

Ireland Pension Tax Relief Calculator 2026 (Age Limits & €115,000 Cap) - math and vectors complete, content pending.

Ireland PRSA Calculator 2026 (Projection, Lump Sum & €2.2m Fund Threshold) - math and vectors complete, content pending.

Ireland Rental Income Tax Calculator 2026 (Case V Profit, RPRIR & Rent-a-Room) - math and vectors complete, content pending.

Computes Irish residential stamp duty using the 2026 tiered 1%/2%/6% rates and the 15% bulk-purchaser override rate for 10+ house acquisitions, with total purchase cost including stamp duty.

Add or remove Irish VAT at any of the four rates using the correct VAT fraction, and check turnover against the separate registration thresholds of 85,000 euro for goods and 42,500 euro for services.

Computes the 2026 Dutch 30%-regeling tax-free expat allowance, applying the flat 30% rate against the EUR 48,013 standard (or EUR 36,497 reduced under-30-with-masters) minimum salary threshold and the EUR 78,600 WNT-norm ceiling.

Estimates the Dutch AOW state pension gap (AOW-gat) from incomplete insured residency years, applying the 2% per-year accrual rule between age 17 and the 2026 AOW pension age of 67 against the full single-person or per-partner 2026 AOW rate.

Computes 2026 Dutch Box 3 notional wealth tax using the current post-2023 bridging-law method -- separate notional return rates for savings (1.28%), investments (6.00%), and deductible debt (2.70%), blended into an effective rate applied net of the EUR 59,357/118,714 tax-free allowance.

Add or remove Dutch BTW at the general, reduced or zero rate using the correct VAT fraction, covering the 1 January 2026 move of accommodation to 21% and the €20,000 KOR small-business ceiling.

Calculate Dutch vennootschapsbelasting with profit banded at €200,000 between the 19% and 25.8% rates, showing both the effective and marginal rates and how the absence of a UK-style relief taper changes the picture.

Netherlands Freelancer / ZZP Tax Calculator 2026 (Zelfstandigenaftrek, MKB-Winstvrijstelling & Zvw) - math and vectors complete, content pending.

Netherlands Heffingskortingen Calculator 2026 (Algemene Heffingskorting & Arbeidskorting) - math and vectors complete, content pending.

Calculate Dutch box 1 income tax for 2026 across the three brackets, then apply the algemene heffingskorting and the four-band arbeidskorting, showing how the credits cut the effective rate from 36% to under 19% at a typical salary.

Netherlands Inheritance Tax Calculator 2026 (Erfbelasting Rates & Vrijstellingen) - math and vectors complete, content pending.

Computes the Dutch hypotheekrenteaftrek for 2026, netting mortgage interest against the eigenwoningforfait (imputed rental value at 0.35% of WOZ-value, or the villataks above EUR 1,350,000) and capping the deduction rate at 37.56% for top-bracket taxpayers.

Netherlands Rental Income Tax Calculator 2026 (Box 3, Leegwaarderatio & Net Yield) - math and vectors complete, content pending.

Combines Dutch zorgtoeslag, kindgebonden budget, and the reformed 2026 huurtoeslag (fixed basishuur + three-tier subsidy + linear income correction) into a single estimated monthly and annual benefits total.

Netherlands Transfer Tax Calculator 2026 (Overdrachtsbelasting 0% / 2% / 8% / 10.4%) - math and vectors complete, content pending.

Computes New Zealand ACC levies -- the Earner's Levy on liable earnings for everyone, plus the self-employed-only classification-based Work Levy and flat Working Safer Levy.

Determines whether a residential property sale falls inside the current 2-year Bright-Line Test period and computes the resulting tax at the seller's marginal rate, with the main home exclusion.

Projects a KiwiSaver account balance to retirement from current age, salary, contribution rate, and employer match, including the annual Government contribution and compounded growth.

Computes New Zealand take-home pay from gross salary, combining PAYE income tax, the ACC earner's levy, KiwiSaver employee/employer contributions, and ESCT on the employer match.

Selects the correct ESCT band from total remuneration and applies that single flat rate to the whole employer superannuation contribution, using Inland Revenue's grossed-up thresholds rather than the personal income tax brackets.

NZ FBT Calculator 2026-27 (Single Rate vs Full Alternate Rate, Vehicles & De Minimis) - math and vectors complete, content pending.

NZ GST Calculator 2026 (15% GST, the 3/23 Fraction & the $60,000 Threshold) - math and vectors complete, content pending.

NZ Property Rates Calculator 2026/27 (Council Rates & the $830 Rates Rebate) - math and vectors complete, content pending.

NZ Rental Income Tax Calculator 2026-27 (Ring-Fencing & 100% Interest Deductibility) - math and vectors complete, content pending.

Works out New Zealand student loan deductions at 12% of income above the NZ$24,128 annual threshold, per pay period against Inland Revenue's published weekly, fortnightly, four-weekly and monthly thresholds, including the no-threshold rule for secondary jobs.

Working for Families Calculator 2026-27 (FTC, IWTC, Best Start & the 27.5% Abatement) - math and vectors complete, content pending.

France Capital Gains Tax Calculator (PFU 31.4% vs Barème, 2026) - math and vectors complete, content pending.

Calculate French impôt sur les sociétés at the 25% standard rate with the 15% reduced rate on the first €42,500, showing that the relief is capped at €4,250 and that eligibility turns on turnover, capital and shareholding rather than profit.

Computes French income tax by dividing household income into parts fiscales under the quotient familial mechanism before applying 2026 progressive brackets, with the statutory cap on the child-splitting benefit.

Computes French inheritance tax (droits de succession) by heir relationship, applying the correct per-heir allowance and progressive bracket scale, with full spousal/PACS exemption.

Computes the deductible portion of a PER contribution against the plafond fiscal cap (10% of prior-year income), the resulting tax savings, and growth projection to retirement.

Computes French real estate capital gains tax combining 19% income tax and 17.2% social levies, each with its own holding-period abatement schedule, with full primary-residence exemption.

France Rental Income Tax Calculator (Revenus Fonciers 2026) - math and vectors complete, content pending.

France Social Security Calculator (Cotisations Sociales 2026) - math and vectors complete, content pending.

Convert between prix HT and prix TTC at any of the four French TVA rates, using the correct VAT fraction, which at the normal rate is exactly one sixth of the gross.

Computes French IFI (real-estate-only wealth tax) on net taxable real estate wealth above the €1.3M threshold, applying the primary-residence abatement and deductible mortgage debt.

Compares France's blended household withholding rate against the individualized rate option for married couples, showing each partner's own withholding percentage when incomes differ significantly.

Italy Capital Gains Tax Calculator (Imposta Sostitutiva 2026) - math and vectors complete, content pending.

Calculate Italian IRES at the flat 24% rate, showing that no small-company band exists unlike Spain, the Netherlands or the UK, and disclosing that IRAP and the conditional IRES premiale are excluded.

Computes Italian IMU municipal property tax by applying the cadastral coefficient and municipal rate to a property's rendita catastale (cadastral income).

Italy Inheritance Tax Calculator (Imposta di Successione 2026) - math and vectors complete, content pending.

Computes Italian IRPEF income tax for 2026 on gross salary after INPS contribution deductions, using the current progressive bracket schedule, with effective and marginal rate output.

Computes a simplified Italian ISEE (household economic indicator) from income, financial and property assets net of franchigie, and family-size equivalence scale.

Add Italian IVA or perform the scorporo at any of the four rates set by DPR 633/72, using the correct VAT fraction rather than a straight percentage deduction.

Projects an Italian INPS notional contribution pot forward and converts it to an estimated annual pension using the current age-based transformation coefficient under the metodo contributivo.

Compares Italy's cedolare secca flat-tax election on rental income against ordinary IRPEF taxation plus registration tax, showing which produces lower total tax.

Italy Social Security Calculator (INPS Contributions 2026) - math and vectors complete, content pending.

Projects Italian TFR statutory severance accrual over time, applying the ISTAT-linked revaluation formula net of the 17% substitute tax.

Computes the Spanish RETA cuota de autónomos using the 2026 15-tramo income-based contribution system, including the flat €80/month tarifa plana for new autónomos in their first 12 months.

Computes Spanish capital gains, dividend, and interest income tax under the national base del ahorro progressive scale, applying the loss-offset-against-gains and 25%-of-investment-income offset rules.

Calculate Spanish Impuesto sobre Sociedades across the general, reduced-dimension and micro-enterprise regimes, banding the micro rate at €50,000 between 19% and 21% and showing the saving against the general 25% rate.

Computes Spanish IBI annual municipal property tax from a property's valor catastral and the selected city's own rate, comparing Madrid, Barcelona, Valencia, Sevilla, and Málaga.

Computes Spanish Impuesto de Sucesiones y Donaciones (ISD) across Madrid, Catalonia, Andalucía, and Valencia, disclosing the large regional variation in effective inheritance tax rather than presenting a single national figure.

Computes Spanish IRPF income tax combining the national state scale with a selected region's own bracket schedule, covering Madrid, Catalonia, and Andalucía as representative examples.

Add or remove Spanish IVA at the general, reduced, super-reduced or zero rate using the correct VAT fraction, covering the 4% staples rate and the temporary 10% rate on energy supplies until 30 June 2026.

Computes Spain's plusvalía municipal (IIVTNU) tax on land value increase at property transfer, comparing the objective coefficient-based method against the real actual-gain method and applying whichever is lower.

Spain Rental Income Tax Calculator (IRPF, Art. 23 Reductions 2026) - math and vectors complete, content pending.

Spain Social Security Calculator (Régimen General, 2026 Rates) - math and vectors complete, content pending.

Spain Wealth Tax Calculator -- Impuesto sobre el Patrimonio (2026) - math and vectors complete, content pending.

Computes the BSU (young people's housing savings) tax credit for a given year, applying the annual deposit cap, lifetime savings cap, 10% credit rate, and age-33 eligibility cutoff.

Computes Norwegian capital gains tax for 2026 under the aksjonaermodellen -- skjerming shielding deduction, the 1.72 oppjusteringsfaktor and 22% rate (37.84% effective) -- plus flat-22% real estate gains and the NOK 500,000 exit-tax cliff.

Computes the annual taxable benefit-in-kind for a Norwegian company car (firmabil) for 2026, including the age/mileage basis reductions, plus the estimated extra tax cost at the employee's salary.

Norway Income Tax Calculator 2026 (Trinnskatt, Minstefradrag & the Two Tax Bases) - math and vectors complete, content pending.

Computes Norwegian net (take-home) salary for income year 2026 from gross wage income, breaking out trinnskatt, trygdeavgift, minstefradrag, and the 22% tax on alminnelig inntekt.

Norway Property Tax Calculator (Eiendomsskatt 2026) - math and vectors complete, content pending.

Norway VAT Calculator (MVA 25%, 15% and 12%) - math and vectors complete, content pending.

Computes Norway's annual formuesskatt (net wealth tax) for 2026, applying asset-specific valuation discounts for cash, shares, primary and secondary homes, and the municipal/state rate schedule.

Computes Finland's capital gains tax for 2026 on the two-step 30%/34% capital income schedule, automatically applying the more favorable of the actual acquisition cost or the 20%/40% hankintameno-olettama, pooling the gain with other capital income against the 30,000-euro threshold, and modeling the own-home and small-disposal exemptions plus 5-year loss carryforward.

Finland Income Tax Calculator (Valtion Tulovero + Kunnallisvero 2026) - math and vectors complete, content pending.

Computes Finland's perintövero per heir for 2026 using the Class I and Class II base-plus-marginal bracket tables above the 30,000-euro floor, applying the 90,000-euro spousal or 60,000-euro minor-child deduction and optionally excluding the surviving spouse's avio-oikeus half of the marital property before distribution.

Computes Finland's annual kiinteistövero from separate assessed building and land values, using the 2026 statutory municipal rate bands for primary residences (0.41%-1.00%), other residential buildings (0.93%-2.00%), and land (1.30%-2.00%).

Computes Finland's kotitalousvähennys credit for 2026 under current law (35% company-purchased / 13% direct-hire, 1,600-euro cap, 150-euro omavastuu), including the elevated 60%/30% oil-heating-replacement rate, and flags a pending (not yet enacted) 40%/2,100-euro proposal.

Computes Finnish net salary from gross pay using the full 2026 tax stack -- the five-bracket state income tax schedule (post-solidaarisuusvero repeal), perusvähennys-reduced municipal and church tax, both health insurance contribution components, and the työtulövähennys earned-income credit.

Computes Finland's varainsiirtovero at 1.5% (housing company shares) or 3% (direct real estate) on purchase price, and flags that the first-time-buyer exemption was permanently abolished for agreements signed on or after 1 January 2024.

Finland VAT Calculator (ALV 25.5%, 13.5% and 10%) - math and vectors complete, content pending.

Computes Swedish capital gains tax across three bases -- the flat 30% on a depå share gain, the ISK schablonintäkt deemed-return charge, and the 22/30 kvotering giving a 22% effective rate on a private residence sale.

Calculates Swedish egenavgifter (self-employed social contributions) at the full, reduced, or passive-business rate, plus income tax on the resulting net profit, for a sole trader (enskild firma).

Sweden Income Tax Calculator (Kommunalskatt + Statlig Inkomstskatt 2026) - math and vectors complete, content pending.

Calculates a Swedish jämkning withholding adjustment so monthly tax withheld tracks actual accrued annual tax liability, avoiding a large refund or shortfall at filing.

Computes Swedish net salary from gross pay using the selected kommun's combined municipal-plus-region tax rate, grundavdrag, jobbskatteavdrag, and statlig inkomstskatt above the 2026 threshold.

Calculates the Swedish ROT (30%) and RUT (50%) labor-cost tax credit, correctly allocating between the SEK 50,000 ROT sub-cap and the shared SEK 75,000 combined annual cap.

Sweden VAT Calculator (Moms 25%, 12% and 6%, With The April 2026 Food Cut) - math and vectors complete, content pending.

Computes the favorable flat-rate tax on Austria's 13th and 14th salary special payments (Sonstige Bezuge), showing the tax savings versus taxing the same amount at ordinary rates.

Computes Austrian capital gains tax under both regimes - flat 27.5% KESt on securities with the pre-2011 Altbestand exemption, and flat 30% ImmoESt on real estate with the Altvermoegen deemed-cost rules and the Hauptwohnsitzbefreiung.

Computes the Austrian Pendlerpauschale commuter allowance (kleine or grosse band) plus the Pendlereuro supplement based on one-way commute distance and public transport usability.

Computes Austrian net salary across the standard 14-payment year, applying progressive income tax brackets, social insurance contributions, and the Familienbonus Plus per-child credit.

Computes Austrian Grunderwerbsteuer at the standard 3.5% rate for arm's-length sales, or the favorable Stufentarif Pauschalwertmodell rate for family/related-party transfers.

Austria Social Insurance Calculator (Sozialversicherung, 2026) - math and vectors complete, content pending.

Computes Danish 2026 tax on share income across both regimes -- the progressive 27%/42% aktieindkomst bands at the DKK 79,400 single (DKK 158,800 married-pooled) threshold, and the Aktiesparekonto's flat 17% on mark-to-market gains under the DKK 174,200 contribution ceiling -- applying kildeartsbegrænset loss carry-forward and comparing the two regimes side by side.

Computes Denmark's 2026 befordringsfradrag commuter deduction across the 25-120km and above-120km distance tiers, including the mid-2026 retroactive rate increase and the flat elevated yderkommune rate for periphery-municipality and small-island residents.

Denmark Income Tax Calculator 2026 (Mellemskat, Topskat & det Skrå Skatteloft) - math and vectors complete, content pending.

Computes Danish inheritance tax for 2026 across all three heir classes -- spouse (fully exempt), close family and 2-year cohabitants (15% boafgift), and everyone else including siblings in 2026 (15% plus a 25% tillægsboafgift) -- using the statutory sequential combination method that yields a 36.25% effective rate on the taxable base rather than the 40% naive addition implies.

Computes Danish net salary from gross pay using the full 2026 tax stack -- AM-bidrag, bundskat, the reintroduced mellemskat, topskat, the new top-topskat, and adjustable municipal/church tax -- with the standard beskæftigelsesfradrag and jobfradrag deductions applied correctly to only the bundskat/kommune base.

Applies the post-2024-reform Ejendomsskattelov formula to compute ejendomsværdiskat (5.1%/14% progressive rate on 80% of assessed value) and grundskyld (municipal per-mille rate on 80% of land value) for 2026, flagging the transition-period skatterabat and stigningsbegrænsning as out of scope.

Switzerland Cantonal Tax Calculator (Kantonssteuer, 2026) - math and vectors complete, content pending.

Calculates Switzerland's Eigenmietwert (imputed rental value) addition to taxable income and the resulting extra tax, by canton, net of deductible mortgage interest and maintenance -- flags the pending (not-yet-effective) 2025 abolition referendum.

Estimates combined federal + cantonal + communal Swiss income tax across 6 representative cantons, showing how dramatically the same income is taxed differently by canton.

Estimates the 2026 Pillar 3a contribution cap and the resulting canton-dependent marginal tax saving for employees and the self-employed.

Estimates Swiss Quellensteuer (withholding tax at source) for foreign workers without a C permit, by tariff code and canton -- explicitly flagged as an estimate, not the official monthly tariff table.

Estimates Switzerland's annual net wealth tax (Vermögenssteuer) across 6 representative cantons, sourced from ESTV's official 2026 tax calculator.

Computes the annual taxable benefit in kind (ATN) for a Belgian company car from catalog value, CO2 emissions, fuel type, and vehicle age, plus its estimated extra personal income tax cost.

Computes Belgian federal personal income tax (IPP/Personenbelasting) plus the municipal surcharge, using current 2026 progressive bracket thresholds and rates.

Estimates Belgian legal pension from career-average salary and years worked, plus the regional bonus logement mortgage tax benefit's current value for loans that still qualify.

Computes Belgian précompte immobilier from a property's cadastral income and the applicable regional/communal "additional centimes" multiplier, across Brussels, Wallonia, and Flanders.

Computes Belgian property registration duty by region, applying the reduced sole/only-home rate and tax-free abatement where the buyer qualifies, across Brussels, Wallonia, and Flanders.

Calculates Polish inheritance and gift tax for 2026 by acquirer tax group, applying the cumulative five-year kwota wolna, the statutory progressive scale, and ulga mieszkaniowa housing relief, and quantifying the cost of missing the six-month SD-Z2 exemption deadline.

Computes Polish net salary from gross pay for 2026 across umowa o pracę, umowa zlecenie, and B2B contract types, applying ZUS social insurance, NFZ health insurance, and PIT under the skala podatkowa, with under-26 exemption support.

Poland PIT Calculator -- Skala Podatkowa (2026) - math and vectors complete, content pending.

Projects a Polish PPK (Employee Capital Plans) retirement savings balance, combining employee and employer contribution rates with the one-time 250 PLN welcome payment and 240 PLN annual government top-up.

Computes the PIT savings under Poland's ulga dla młodych under-26 exemption for 2026, comparing tax owed with and without the 85,528 PLN annual exemption cap.

Calculates Greek ENFIA property tax from a property's objective value (zone price, surface area, age, and floor factors), including the supplementary tax tier above the value threshold.

Computes Greek income tax on salaried or pension income using the current 2026 progressive tax scale.

Calculates Greek inheritance tax by beneficiary category (A, B, or C) using each category's own exemption and progressive bracket scale, including the special €400,000 spouse/minor-child exemption.

Calculates Greek tekmiria (imputed/presumptive income) from owned assets -- homes, cars, boats, pools -- comparing it against declared income to determine the higher, taxable figure.

Computes Portuguese IMT property transfer tax plus stamp duty for own-home, second-home, non-habitation-urban, and rustic property, including the IMT Jovem nil-duty exemption for young first-time buyers.

Computes Portuguese IRS income tax on Category A employment income for 2026, including the IRS Jovem young-worker exemption schedule, the quociente conjugal joint-filing split, and the solidarity surcharge.

Computes Portuguese real estate capital gains tax under the 50% inclusion rule for residents, with the monetary correction coefficient and the Article 10(5) primary-residence reinvestment exemption.

Computes Portuguese Social Security contributions for independent workers using the 70%/20% relevant-income coefficient, the 21.4% contribution rate, and the IAS-based minimum/maximum contribution base.

Computes Czech Republic net salary from gross pay, applying the 2026 progressive 15%/23% income tax, sleva na poplatníka, daňové zvýhodnění na dítě child credits (including the refundable daňový bonus), and employee social and health insurance.

Computes Czech Republic OSVČ social and health insurance contributions for 2026 from annual profit, applying the 55%/50% profit-share assessment bases, 29.2%/13.5% rates, statutory minimums (including the mid-2026 change), and the social-insurance maximum assessment base.

Compares Czech Republic paušální daň (flat tax) against the standard regime for OSVČ in 2026, modeling all three bands including the mid-year Band 1 reduction, against standard-regime progressive income tax and social/health insurance.