Inheritance Taxes in Illinois: What You Owe and What You Don't

What are the first steps?

Before you spend or move anything:

1. Ask the executor or trustee for a timeline.
2. Get the date-of-death value of each asset in writing.
3. Don't cash out an inherited IRA in one year without running the tax numbers.
4. Park cash in an insured account while you decide.
5. Keep every statement and letter in one folder.

Does Illinois have an inheritance tax?

No. Illinois doesn't tax heirs for inheriting. It has an estate tax instead, paid by the estate, and only when the estate is over $4 million (as of 2026).

If the person who died lived in another state, that state's rules may apply. A few states do tax heirs. Check where they lived, not where you live.

When does the federal estate tax apply?

In 2026, only estates above $15,000,000 per person owe federal estate tax. A married couple can protect up to $30,000,000 with planning and portability. The estate files and pays, not you.

If the estate does owe tax, the return is generally due nine months after the death. The executor can ask for more time to file.

Is my inheritance taxable income?

No. Cash, a house, or stocks you inherit are not income on your tax return under IRS rules (as of 2026).

Income those assets earn after you receive them is taxable: interest, dividends, and rent. And money in pre-tax retirement accounts is taxed when you withdraw it.

What is a step-up in basis?

Inherited property usually gets a new tax starting point: its value on the date of death. That new starting point is called your basis. It can wipe out years of taxable growth.

How are inherited IRAs taxed?

Withdrawals from a pre-tax inherited IRA are taxed as ordinary income. Most non-spouse heirs must empty the account by the end of the 10th year after the death (IRS rules as of 2026).

If the original owner had already started required withdrawals, you may also need yearly withdrawals along the way. Spreading withdrawals over the 10 years can keep you out of a higher bracket. Inherited Roth IRAs are usually tax-free if the Roth was at least five years old.

Is life insurance taxable to the beneficiary?

Generally no. Life insurance paid because of a death is usually not taxable income (IRS rules as of 2026). Interest added later is taxable.

The death benefit can count toward the estate for estate-tax purposes if the person who died owned the policy. For larger Illinois estates, that detail matters.

Who files the final tax returns?

The executor or trustee does. They file the person's final Form 1040 for the year of death. If the estate or trust has $600 or more of gross income in a year, they also file Form 1041 (IRS, as of 2026).

An Illinois estate tax return, if needed, is generally due nine months after the death. Missing it can bring penalties and interest.

What if siblings disagree about inherited property?

Talk early, before feelings harden. Get a written appraisal as of the date of death. Then choose: one sibling buys out the others, or you sell and split.

Put the plan in writing. A trust with clear instructions prevents most of these fights. If you're writing your own plan, that's a reason to be specific now.

Do I have to pay the debts of the person who died?

Generally, not from your own money. Debts are paid from the estate before heirs receive anything (CFPB, as of 2026).

You may be responsible if you co-signed, shared a joint account, or owe under a state law that covers spouses. Don't let a collector pressure you into paying a debt that isn't yours.

Should I invest my inheritance right away?

No rush. Put cash in an insured account for a few months. Then decide with a plan: pay off high-interest debt, build an emergency fund, and invest the rest for your goals.

Grief and windfalls together lead to fast decisions. Slow is usually better.

Education, not advice. Every family is different. Talk with your own tax, legal, and financial professionals before you act. Figures are 2026 amounts from the official sources below and can change.