What is the top estate-tax rate in Illinois?

The top Illinois estate-tax rate for 2025 is 16%, which applies only to the portion of the estate in the highest bracket — not the whole estate. (Source: Tax Foundation 2025; Office of the Illinois Attorney General (Estate Tax).)

Does Illinois also have an inheritance tax?

No. Illinois levies an estate tax (paid by the estate) but no inheritance tax (which would be paid by the beneficiary). Only Maryland levies both. (Source: Tax Foundation 2025.)

What about federal estate tax?

This page covers Illinois state-level death taxes only. Separately, the federal estate tax applies to estates above $13,990,000 per person for 2025 (with portability between spouses), at federal rates up to 40%. Most estates fall under the federal exemption. (Source: IRS; Tax Foundation 2025.)

Is my data sent anywhere when I use this tool?

No. All calculations run entirely in your browser using JavaScript. No estate values, inputs, or personal data are ever transmitted to any server.

Illinois Estate Tax 2025 — $4,000,000 Exemption, 0.8%–16%

Name: Illinois Estate Tax 2025 — $4,000,000 Exemption, 0.8%–16%
Creator: Gera Tools
License: https://creativecommons.org/licenses/by/4.0/

See the Illinois 2025 estate-tax exemption ($4,000,000) and 0.8%–16% rates, and estimate your exposure — instant, in your browser.

Free Illinois estate tax reference for 2025. See the $4,000,000 exemption and 0.8%–16% estate-tax rates, and estimate the tax on an estate above the exemption. Source: Tax Foundation "Estate and Inheritance Taxes by State, 2025" + Office of the Illinois Attorney General (Estate Tax). Runs entirely in your browser; no data sent to any server. It runs free in your browser on Gera Tools, with nothing uploaded.

Last updated 18 June 2026 Source: Gera Tools

What is the Illinois estate-tax exemption for 2025?

The Illinois estate-tax exemption is $4,000,000 for 2025. An estate worth less than that owes no Illinois estate tax; the value above the exemption is taxed at marginal rates from 0.8% to 16%. (Source: Tax Foundation, "Estate and Inheritance Taxes by State, 2025".)

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Illinois Estate & Inheritance Tax 2025

Illinois levies a state estate tax for 2025 on the value of an estate above its $4,000,000 exemption, at marginal rates from 0.8% to 16%. The tax is paid by the estate before assets are distributed.

Enter a gross estate value below to see how much exceeds the Illinois exemption and an order-of-magnitude tax range. Everything runs in your browser — no data is transmitted.

Important: Illinois levies an estate tax from 0.8% to 16% above a $4 million exemption for 2025. This covers state-level death taxes only — it excludes the federal estate tax (exemption $13,990,000 per person for 2025) and gift tax. Estate tax is paid by the estate; inheritance tax is paid by the beneficiary. Verify current figures with the Office of the Illinois Attorney General (Estate Tax). This is not tax or legal advice.