Answers

How long does probate take in Illinois?

By Adam Lysinski, Attorney · Updated May 16, 2026

Most Illinois probate estates close in 9 to 18 months. Contested estates, will challenges, or estate-tax filings can push that well past two years.

Call (773) 777-9888 — 5-min triage

Short answer

Illinois probate typically takes 9 to 18 months for an uncontested estate. The Illinois Probate Act requires the estate to stay open at least 6 months from the date letters are issued, to allow creditor claims. Contested estates, will challenges, missing heirs, real-estate sales, or estate-tax filings extend the timeline — sometimes beyond two years.

What sets the floor

The six-month creditor-claim period. Under the Illinois Probate Act, once the court issues letters of office to the executor or administrator, creditors have six months to file claims against the estate. The estate cannot fully close and distribute until that window runs. This six-month period is the practical floor — no Illinois probate finishes faster.

Independent vs. supervised administration. Most Illinois estates use independent administration, which limits court involvement and is faster. Supervised administration — required when an interested party demands it, or when the will directs it — adds court approval steps and time.

What drives delay

Will contests. A challenge to the validity of the will stops distribution until the dispute resolves. Litigated will contests routinely add a year or more.

Real estate. If the estate must sell a house, the timeline depends on the market and on clearing title — and the sale usually must complete before final distribution.

Estate-tax filings. Estates above the Illinois $4M estate-tax threshold or the federal $15M threshold (under the One Big Beautiful Bill Act) must file returns, and the estate generally stays open until tax matters close.

Missing or uncooperative heirs, and disorganized records. Locating heirs, marshalling assets, and reconstructing incomplete financial records all add months.

How to avoid probate entirely

Probate applies to assets that pass under a will or by intestacy. Assets held in a revocable living trust, real estate transferred by an Illinois Transfer-on-Death Instrument (TODI), property in joint tenancy or tenancy by the entirety, and accounts with valid beneficiary designations all pass outside probate. A funded revocable living trust is the most comprehensive probate-avoidance tool because it also addresses incapacity.

Related questions

How long does probate take in Illinois?
An uncontested Illinois probate estate typically takes 9 to 18 months. The Illinois Probate Act requires the estate to remain open at least six months from the issuance of letters of office, to allow creditor claims. Contested estates, will challenges, real-estate sales, and estate-tax filings extend the timeline, sometimes beyond two years.
Why does Illinois probate take at least six months?
The Illinois Probate Act gives creditors six months from the date the court issues letters of office to file claims against the estate. The estate cannot fully distribute and close until that claim period ends, so six months is the practical minimum for any Illinois probate.
What makes probate take longer than 18 months?
Will contests, litigation among heirs, the sale of estate real estate, estate-tax returns above the Illinois $4M or federal $15M thresholds, missing heirs, and disorganized financial records are the most common causes of probate running past 18 months.
Can probate be avoided in Illinois?
Yes. Assets in a funded revocable living trust, real estate transferred by a recorded TODI, property held in joint tenancy or tenancy by the entirety, and accounts with valid beneficiary designations all pass outside probate. A funded revocable living trust is the most comprehensive option because it also handles incapacity.

Continue reading

Need to talk to Adam?

The 5-minute triage call is free. Adam answers honestly: yes I can help and here’s what comes next, or no this is not my lane and here’s who handles it.

Call (773) 777-9888

Start here

Where can Adam help today?

I’m selling a home → I’m buying a home → I need a will or trust → I’m a real estate broker →