Maryland Estate Tax Calculator (2026 Exemption Limits & Inheritance Liabilities)

Maryland is the only state in the country that imposes both a state-level estate tax and a separate inheritance tax on the same estate, a distinction none of the other eleven states with an estate tax, and none of the four states with only an inheritance tax, can claim.

The estate tax applies above a $5,000,000 exemption, with rates that climb from 0.8% to 16% on the value above that line, calculated independently of whatever the estate additionally owes under Maryland's inheritance tax, which is assessed separately based on a beneficiary's relationship to the decedent.

That double layer means a single Maryland death can generate two distinct state tax bills: one calculated against the gross taxable estate before distribution, and another calculated against what specific beneficiaries actually receive.

For families with property or beneficiaries in neighboring Virginia or West Virginia, neither of which taxes estates or inheritances, the contrast can be stark: identical wealth transferred just across the Potomac produces a materially different state tax outcome depending on where the decedent was domiciled.

Estate tax obligations are computed by evaluating gross worldwide estate assets less allowable marital, charitable, and administrative deductions against state exemption floors.

### Statutory Mathematical Formulation $$\text{State Estate Tax} = \begin{cases} 0 & \text{if } \text{Net Estate} \le \text{Exemption} \\ \sum_{j=1}^{K} \text{Taxable Tier}_j \times \text{Rate}_j & \text{if } \text{Net Estate} > \text{Exemption} \end{cases}$$ $$\text{Net Distributable Estate} = \text{Gross Estate} - \text{State Estate Tax} - \text{Administrative Costs}$$

### Computational Execution Steps: 1. Gross Estate Valuation: Fair market valuation of all worldwide real property, business interests, equities, cash, and life insurance proceeds. 2. Allowable Deductions: Subtraction of debt obligations, administrative expenses, qualifying charitable bequests, and unlimited marital deductions. 3. Exemption Threshold Comparison: Net estate value is compared against Maryland's statutory exemption floor. 4. Bracket Tier Allocation: Assets exceeding the exemption threshold are taxed across progressive state rate tiers. 5. Tax Credit Offsets: Application of state gift tax credits or prior transfer credits where permitted by statute.

1. Start with the gross estate. This example uses a $5,000,000 gross estate: the fair market value of all property, business interests, equities, cash, and life insurance the decedent owned at death, before deductions.
2. Compare against Maryland's exemption. Maryland taxes estates only above $5,000,000; the $5,000,000 estate sits at or below that threshold, so none of it is taxable.
3. Taxable estate above exemption. $5,000,000 minus the $5,000,000 exemption leaves nothing above the line, so the taxable estate above the exemption is $0.
4. Compute the tax due. With nothing above the exemption, the calculator returns $0.00 in Maryland estate tax, even though Maryland's top bracket reaches 16.0% above the threshold.
5. Distribute the net estate. The full $5,000,000.00 gross estate passes to beneficiaries undiminished.
6. What this leaves out. This is Maryland's state-level result only; federal estate tax is assessed separately under IRC § 2010.

Sophisticated estate planning in Maryland utilizes established legal and actuarial vehicles: - Irrevocable Life Insurance Trusts (ILITs): Holding life insurance outside the taxable estate provides liquidity to pay estate taxes without subjecting death benefits to taxation. - Spousal Lifetime Access Trusts (SLATs): Removing appreciated assets from the gross taxable estate while preserving indirect spousal access to trust distributions. - Grantor Retained Annuity Trusts (GRATs): Transferring future asset appreciation to beneficiaries free of gift and estate taxes above the statutory Section 7520 hurdle rate. - Charitable Remainder & Lead Trusts (CRTs / CLTs): Generating immediate income tax deductions while structuring philanthropic distributions and wealth transfer.

• IRC § 2010 & § 2058: Federal unified exemption rules and state death tax deductions against federal estate liabilities.
• Portability of Deceased Spousal Unused Exemption (DSUE): Federal portability rules allow surviving spouses to utilize unused exemption; state-level portability varies by jurisdiction.
• Irrevocable Trusts & Dynasty Planning: Utilization of Spousal Lifetime Access Trusts (SLATs), Grantor Retained Annuity Trusts (GRATs), and Charitable Remainder Trusts (CRTs) to mitigate state tax exposure.
• Valuation Discounts: Application of minority interest and lack of marketability discounts for privately held family limited partnerships (FLPs).

• Federal generation-skipping transfer (GST) tax under IRC Chapter 13.
• Ancillary probate requirements for real property situated in other jurisdictions.
• Complex liquidity discounts for minority non-voting family business entities.
• State-specific inheritance taxes levied directly on beneficiaries (e.g. PA, NJ, MD, KY, NE).

• Assuming State Exemption Matches Federal: Forgetting that states like Oregon ($1.0M) and Massachusetts ($2.0M) tax estates far below the federal threshold.
• The "Cliff" Effect in Specific States: Failing to recognize that states like New York eliminate the exemption entirely if the estate exceeds 105% of the threshold.
• Out-of-State Real Property Exposure: Holding real estate in states with active estate taxes exposes non-resident estates to proportional state estate taxes.
• Failing to Fund Revocable Living Trusts: Assets held outside trust structures are subjected to public probate proceedings and statutory executor fees.

• Maryland Department of Revenue / Taxation: Estate Tax Guidance (2026).
• Tax Foundation: State Estate and Inheritance Taxes (2025/2026).
• American College of Trust and Estate Counsel (ACTEC): State Death Tax Comparative Chart.