Sweden Capital Gains Tax Calculator (Shares, ISK, Property)

Almost every explanation of Swedish capital gains tax starts and stops at "30%", and almost every one of them is misleading. The 30% rate is real and it is genuinely flat -- there is no progressive scale, no holding-period discount, and no annual exempt amount on a normal share sale. But the rate is the least interesting part of the system. What actually determines your bill is which taxable base the 30% lands on, and Sweden has three quite different answers.

A conventional securities account (a depå, or aktie- och fonddepå) works the way most people expect: you realize a gain, you pay 30% of it, in the year you sell. An investeringssparkonto (ISK) does something that surprises nearly everyone coming from another tax system -- it does not tax your gains or your dividends at all. Instead it taxes a deemed annual return (a schablonintäkt) computed from how much money is in the account, and that charge falls due whether the account went up 40%, went down 40%, or you never touched it. A private residence (privatbostad) uses a third mechanism again: only 22/30 of the gain is taxable, which at the 30% rate produces the familiar 22% effective rate.

This calculator covers all three because they are the same rate applied to three different bases, and because the choice between them -- specifically depå versus ISK -- is a live decision for anyone investing in Sweden. It reports the ISK comparison in every mode, so you can see the break-even point without switching.

1. Listed shares or funds in a depå. The full realized gain is taxed at the flat capital-income rate.

$$\text{Gain} = \text{Sale Price} - \text{Omkostnadsbelopp} - \text{Selling Costs}$$ $$\text{Tax} = \text{Gain} \times 30\%$$

2. ISK (investeringssparkonto). Nothing about your trades enters the calculation. The deemed-return percentage (procentsats) is set fresh each year as statslåneräntan on 30 November of the prior year plus one percentage point, with a statutory floor of 1.25%. For income year 2026, statslåneräntan on 30 November 2025 was 2.55%, so the procentsats is 3.55%.

$$\text{Procentsats} = \max(1.25\%,\ \text{Statslåneräntan (30 Nov, prior year)} + 1\text{ pp})$$ $$\text{Schablonintäkt} = (\text{Kapitalunderlag} - \text{Fribelopp}) \times \text{Procentsats}$$ $$\text{Tax} = \text{Schablonintäkt} \times 30\%$$

Because both steps are multiplications, the all-in ISK charge is a single small percentage of the taxable capital base: 30% × 3.55% = 1.065% for income year 2026. The fribelopp (tax-free allowance) is SEK 300,000 from 1 January 2026 and is subtracted from the kapitalunderlag before the percentage is applied, so an account at or below SEK 300,000 pays nothing.

3. Private residence (privatbostad). The gain is kvoterad -- quoted down -- before the rate is applied.

$$\text{Gain} = \text{Sale Price} - (\text{Acquisition} + \text{Improvement Costs}) - \text{Selling Costs}$$ $$\text{Taxable Gain} = \text{Gain} \times \tfrac{22}{30}$$ $$\text{Tax} = \text{Taxable Gain} \times 30\% = \text{Gain} \times 22\%$$

The two-step form matters even though it collapses to a flat 22%, because it is the taxable gain -- not the tax -- that appears in the capital-income section of your declaration and that interacts with any other capital income or losses you have that year.

### Standard Share Sale from a Depå

You bought 1,000 shares at SEK 100 and sold them at SEK 150, with no brokerage entered:

1. Acquisition cost (omkostnadsbelopp): 1,000 × 100 = SEK 100,000.
2. Sale proceeds: 1,000 × 150 = SEK 150,000.
3. Gain: 150,000 − 100,000 = SEK 50,000.
4. Tax: 50,000 × 30% = SEK 15,000. Net after tax: SEK 35,000.

The effective rate is 30.000% of the gain, and it stays 30.000% at any size -- there is no band, taper, or allowance to plan around on a depå share sale.

### ISK, Income Year 2026

Your ISK has a kapitalunderlag of SEK 500,000 for the year:

1. Taxable capital base: 500,000 − 300,000 fribelopp = SEK 200,000.
2. Procentsats for income year 2026: 2.55% statslåneränta + 1.00 pp = 3.55%.
3. Schablonintäkt: 200,000 × 3.55% = SEK 7,100.
4. Tax: 7,100 × 30% = SEK 2,130.

That SEK 2,130 is the entire tax on the account for the year. It does not change if you sold every holding, and it does not change if the account lost money. Measured against the whole kapitalunderlag including the tax-free portion, that is a drag of 0.426%.

### The Comparison That Actually Matters

Both mechanisms are taxed at 30%, so a depå and an ISK cost exactly the same when your realized gain for the year equals the schablonintäkt. At a SEK 500,000 kapitalunderlag, that break-even gain is SEK 7,100. Realize more than that in a year and the ISK is cheaper; realize less -- or nothing -- and the depå is cheaper. This is why the ISK is the default recommendation for anyone who trades or rebalances at all, and why it is a genuinely bad deal for money that sits still in a year the market falls.

### Private Residence Sale

You sell a home for SEK 4,000,000, having paid SEK 3,000,000 including qualifying improvements, with SEK 100,000 of estate agent and sale costs:

1. Gain: 4,000,000 − 3,000,000 − 100,000 = SEK 900,000.
2. Taxable gain after kvotering: 900,000 × 22/30 = SEK 660,000.
3. Tax: 660,000 × 30% = SEK 198,000 -- an effective 22.000% of the gain.
4. Uppskov ceiling: the full SEK 900,000 is within the 50,000-to-3,000,000 kr deferral bounds, so all of it could in principle be deferred if you buy a new primary home in the EU/EES.

• The uppskov reversal is deliberately not projected. A deferred residence gain is not forgiven -- it comes back into tax when you eventually sell without reinvesting, and it is taxed at whatever rate is in force at that future time, not the 22% in force when you sold. Sweden's residence-gain quotient has been changed by legislation before and can be changed again. This calculator reports how much you could defer and stops there, because any number it produced for a future reversal would be a guess about future law dressed up as arithmetic. Treat an uppskov as a real, open, unquantified liability rather than as tax saved.
• The interest-free status of uppskov is current law, not permanent law. The uppskovsränta -- an annual charge levied on the deferred amount -- was abolished from income year 2021 onward. A future government could reinstate it, which would change the economics of deferring substantially.
• Loss offsetting is reported but not netted across your whole return. The calculator tells you what a loss is worth under the 100%/70% rules, but it does not know your other capital income, so it cannot compute your actual final capital-income position.
• Nothing here computes your kapitalunderlag for you. For an ISK, the kapitalunderlag is the sum of the account value at the start of each of the four quarters plus every deposit made during the year, all divided by four. Your bank calculates and reports this figure; enter the one they give you rather than your year-end balance, which will usually be the wrong number.
• Unlisted and qualified holdings are out of scope. Shares in a fåmansföretag under the 3:12 rules, unlisted shares, and foreign-account arrangements all use their own quotients and rules, none of which are modeled here. This calculator assumes ordinary listed shares and funds.
• Investeringssparkonto is not the only schablon-taxed wrapper. A kapitalförsäkring (endowment insurance) uses a similar deemed-return mechanic with different details; this calculator models the ISK specifically.
• Foreign withholding tax on dividends inside an ISK, and the partial credit available against the schablonintäkt tax, are not modeled.
• Currency effects on foreign-listed holdings held in a depå -- where the gain is computed in SEK and so includes any exchange-rate movement -- are not separated out.

• Assuming an ISK is tax-free. It is not, and the surprise is usually unpleasant. The schablonintäkt falls due in a year the account lost 30% just as surely as in a year it gained 30%. The ISK is a bet that your long-run return beats the deemed return, not an exemption.
• Reading the ISK rate off the wrong year. This is the single most common source of confusion, and it is worth being precise about. See the FAQ below.
• Entering a year-end ISK balance as the kapitalunderlag. The kapitalunderlag is a four-quarter average that also adds back every deposit made during the year. In a year you paid money in, it will be meaningfully higher than any single balance you can see in your app.
• Forgetting selling costs. Courtage on a share sale and mäklararvode on a property sale both reduce the gain. On a property sale the agent fee is often large enough to move the tax by tens of thousands of kronor.
• Expecting the full value of a loss. A share loss offsets share gains one-for-one, but once you run out of gains to offset, the remainder is only 70% deductible against other capital income -- so at a 30% rate it is worth at most 21% of the loss. A private-residence loss is worse still at 50% deductible, worth at most 15%.
• Treating an uppskov as tax avoided. It is tax postponed, with an unknown future rate attached. People who took uppskov in the past have watched the rules around it change more than once.
• Assuming the 22% residence rate is a separate rate. It is not a rate in the statute at all -- it is 30% applied to 22/30 of the gain. That distinction matters when the taxable gain interacts with your other capital income and losses.

• Skatteverket: kvittning and kvotering guidance for aktier och fonder -- the flat 30% capital-income rate on a realized gain, and the rule that a loss on listed shares and funds offsets listed gains 100% while any excess is deductible against other capital income at 70%.
• Skatteverket: investeringssparkonto (ISK) guidance -- the schablonintäkt mechanism, the procentsats defined as statslåneräntan on 30 November of the prior year plus one percentage point with a 1.25% floor, and the SEK 300,000 fribelopp applying from 1 January 2026.
• Carnegie: published note on the income-year-2026 ISK rate, confirming statslåneräntan of 2.55% at 30 November 2025 and the resulting 3.55% procentsats.
• Skatteverket: kapitalvinst guidance on the sale of a privatbostad -- the 22/30 kvotering producing a 22% effective rate, the 50% deductibility of a privatbostad loss, and the uppskov bounds of SEK 50,000 minimum and SEK 3,000,000 maximum, interest-free from income year 2021 onward.