How Much Are Estate & Inheritance Taxes in Illinois?
Illinois levies an estate tax35 ILCS 405/2Verified Sep 15, 2026View source above $4,000,00035 ILCS 405/2Verified Sep 15, 2026View source (top rate 16%35 ILCS 405/2Verified Sep 15, 2026View source) and no inheritance tax; the federal estate tax applies above $15,000,00026 USC 2001(c), 2010; P.L. 119-21 §70106Verified Sep 15, 2026View source.
Yes. Illinois imposes a state estate tax35 ILCS 405/2Verified Sep 15, 2026View source on an estate above $4,000,00035 ILCS 405/2Verified Sep 15, 2026View source, separate from and in addition to the federal estate tax. Illinois has no inheritance tax on the beneficiary.
The Illinois estate tax exemption is $4,000,00035 ILCS 405/2Verified Sep 15, 2026View source; an estate below it owes no state estate tax. The exemption is a fixed amount set by statute35 ILCS 405/2Verified Sep 15, 2026View source. A taxable estate faces graduated rates up to 16%35 ILCS 405/2Verified Sep 15, 2026View source.
The federal estate tax exemption is $15,000,00026 USC 2001(c), 2010; P.L. 119-21 §70106Verified Sep 15, 2026View source per person, with a top rate of 40%26 USC 2001(c)Verified Sep 15, 2026View source. A married couple can shield26 USC 2010(c)(5)Verified Sep 15, 2026View source $30,000,00026 USC 2001(c), 2010; P.L. 119-21 §70106Verified Sep 15, 2026View source by electing portability of the first spouse's unused exemption on a timely estate tax return. The One Big Beautiful Bill Act (P.L. 119-21 §70106) set the exemption permanently from 2026, indexed for inflation.
The $4,000,00035 ILCS 405/2Verified Sep 15, 2026View source threshold is a cliff: once an estate crosses it, Illinois computes tax on the entire taxable estate, not only the amount above the threshold. Unlike the federal tax, Illinois does not allow portability of the unused state exemption between spouses35 ILCS 405/2Verified Sep 15, 2026View source: each spouse has an exemption of $4,000,00035 ILCS 405/2Verified Sep 15, 2026View source, and what the first spouse does not use is lost.
Is this your situation?
Get a complete guide for your specific circumstances.
Inheritance
Inheriting assets brings responsibility. How to manage, protect, and plan for inherited wealth — including tax implications and trust options.
Learn more
Death of a Parent
A step-by-step guide to what happens after a parent dies: the documents to find, the certificates to order, and whether probate is even required.
Learn more
Loss of a Spouse
What a surviving spouse needs to do: death certificates, survivor benefits, whether probate is even required, and the tax election that expires.
Learn more
Named as Executor
What an executor actually does: getting appointed, notifying creditors, paying debts and taxes, and where personal liability starts.
Learn moreForms for Planning and Settling an Estate in Illinois
Free Illinois forms for planning an estate or settling one: a will, trust, powers of attorney, TOD deed, and the probate forms an executor files.
Digital Assets Recovery Letter
Prepare a letter requesting a deceased person's online accounts, points, and balances from the program that holds them.
Petition for Probate and Letters
In Illinois, the petition asks the Circuit Court to appoint the personal representative, whose authority is proved by Letters of Office; every appointment goes through the court755 ILCS 5/6-4, 5/9-4 (court admits the will and issues letters; no registrar/clerk informal appointment)Verified Sep 8, 2026View source.
Notice to Creditors
In Illinois, the notice to creditors is published for 3755 ILCS 5/18-3, 5/18-10, 5/18-11, 5/18-12Verified Oct 18, 2026View source weeks in a local newspaper, and creditors have 6 months755 ILCS 5/18-3 (claim date not less than 6 months from first publication, or 3 months from mailing, whichever is later); 5/18-12(b) (2-year outer bar from death)Verified Sep 8, 2026View source from first publication to present claims.
Renunciation of Executor
In Illinois, a person named as executor may decline to serve755 ILCS 5/6-3(a); Cook County CCP 0309 (12/01/24)Verified Sep 23, 2026View source before anyone is appointed.
Small Estate Affidavit
In Illinois, the Small Estate Affidavit755 ILCS 5/25-1Verified Sep 8, 2026View source covers estates with personal property of $150,000755 ILCS 5/25-1Verified Sep 8, 2026View source or less, presented directly to the bank or other holder, not filed with a court.
Estate Inventory
In Illinois, the personal representative files the estate inventory within 60 days755 ILCS 5/14-1Verified Oct 10, 2026View source of appointment.
Estate Closing
In Illinois, the personal representative is discharged by court order755 ILCS 5/28-11(d), (e), (f); 5/24-2Verified Sep 15, 2026View source, and a final accounting is required unless it is waived.
Tools for Planning and Settling an Estate in Illinois
Free calculators and checklists for planning or settling an estate in Illinois: will and trust costs, probate, executor pay, and inheritance taxes.
What Taxes Apply to My Inheritance?
In Illinois, beneficiaries owe no inheritance tax and the estate pays any estate tax35 ILCS 405/2Verified Sep 15, 2026View source above $4,000,00035 ILCS 405/2Verified Sep 15, 2026View source; probate assets arrive when the estate closes, 6 months to 9 months for a simple estate.
How Does Step-Up in Basis Work?
Inherited assets in Illinois take a basis reset to fair market value on the date of death26 USC § 1014Verified Sep 15, 2026View source, and the gain on a later sale faces ordinary income tax at the state's regular rates35 ILCS 5/201(b)(5.4) flat 4.95% rate on individuals, trusts, and estates; § 201(c)-(d) personal property tax replacement income tax; 35 ILCS 5/203 federal AGI conformityVerified Sep 15, 2026View source.
What Are the Estate Laws in My State?
Probate on a $500,000 estate in Illinois costs an estimated $25,745755 ILCS 5/27-2 (reasonable compensation; no statutory percentage)Verified Sep 8, 2026View source and takes 6 months to 9 months for a simple estate, with attorney fees of typically 1.9%755 ILCS 5/27-2 (reasonable compensation; no statutory percentage)Verified Sep 8, 2026View source to 3%755 ILCS 5/27-2 (reasonable compensation; no statutory percentage)Verified Sep 8, 2026View source of the estate. Estates under $150,000755 ILCS 5/25-1Verified Sep 8, 2026View source can use a small-estate procedure instead.
When Do I Have to Withdraw an Inherited IRA?
See which federal withdrawal rules apply to an inherited IRA, Roth IRA, or employer plan, the deadline year, and the missed-withdrawal tax.
How Much Does Probate Cost?
Probate on a $500,000 estate in Illinois costs an estimated $25,745755 ILCS 5/27-2 (reasonable compensation; no statutory percentage)Verified Sep 8, 2026View source. Attorney fees run 1.9%755 ILCS 5/27-2 (reasonable compensation; no statutory percentage)Verified Sep 8, 2026View source to 3%755 ILCS 5/27-2 (reasonable compensation; no statutory percentage)Verified Sep 8, 2026View source of the estate under a reasonable-compensation standard.
Who Inherits Without a Will?
Without a will in Illinois, a surviving spouse takes half of the estate755 ILCS 5/2-1Verified Sep 10, 2026View source when every child of either spouse is a child of both, and descendants divide what passes to them per stirpes755 ILCS 5/2-1Verified Sep 10, 2026View source.
How Many Death Certificates Do I Need?
In Illinois, certified death certificates come from the Illinois Department of Public Health - Division of Vital RecordsIllinois Department of Public Health - Division of Vital RecordsVerified Oct 15, 2026View source; the first copy costs $19Illinois Department of Public Health - Division of Vital RecordsVerified Oct 15, 2026View source, additional copies $4Illinois Department of Public Health - Division of Vital RecordsVerified Oct 15, 2026View source each.
Do I Need Probate?
In Illinois, estates with personal property of $150,000755 ILCS 5/25-1Verified Sep 8, 2026View source or less skip probate with the Small Estate Affidavit755 ILCS 5/25-1Verified Sep 8, 2026View source.
When you're ready, we're here.
Illinois Estate Planning Resources
In-depth guides covering Illinois probate laws, trust requirements, and estate planning strategies.