Most people assume the federal estate tax exemption is the only number that matters. It is not. Illinois has its own separate estate tax, and its threshold is significantly lower than the federal level. That gap catches families off guard, including many who already have a revocable living trust in place.
A revocable trust is a valuable planning tool. It avoids probate, protects privacy, and keeps asset management straightforward. But it does not reduce your Illinois estate tax liability on its own. Probate avoidance and tax planning are related, but they are not the same thing.
The Illinois Estate Tax Threshold
Illinois imposes an estate tax on estates valued above $4 million at the time of death. The federal exemption for 2025 is considerably higher, which means a substantial number of estates that owe nothing federally may still owe the state. For families across the Chicago area with real estate, retirement accounts, life insurance, and business interests, $4 million is not a number that is difficult to reach. According to the Illinois Department of Revenue, the state estate tax uses a graduated rate structure that can reach up to 16 percent on larger estates.
What a Revocable Trust Does and Does Not Cover
Because a revocable trust allows you to retain full control during your lifetime, the state of Illinois still counts those assets as part of your taxable estate. The trust avoids probate. It does not shrink the taxable estate.
Planning tools that can help families near or above that $4 million threshold include:
- A credit shelter trust, which allows married couples to put both spouses’ exemptions to work
- An irrevocable life insurance trust, which removes death benefits from the taxable estate
- Annual gifting strategies that reduce the estate’s overall value over time
- Charitable trusts, which can address both estate reduction and philanthropic goals
These tools work alongside a revocable trust. They are not replacements for it.
What Married Couples in Illinois Need to Know
Illinois does not allow portability of the state exemption between spouses, unlike federal law. A surviving spouse cannot absorb an unused exemption from a deceased spouse the way federal law permits. Without a structure designed to put both exemptions to use, a surviving spouse may face an otherwise avoidable state tax bill. A Wilmette revocable trust lawyer can address this from the start, building a plan that accounts for the portability gap before the first spouse has passed.
When to Revisit Your Current Plan
Revocable trusts are an important foundation. For families approaching or above the $4 million threshold, they are rarely the complete picture. The right layered approach depends on the type of assets involved, how life insurance is owned, business ownership interests, and overall family circumstances.
It may mean amending an existing trust, adding an irrevocable component, or revisiting how accounts and beneficiary designations are currently structured. Working with a Wilmette revocable trust lawyer who understands both Illinois trust law and state tax rules can make a real difference in what a plan actually accomplishes.
Kravets Law Group works with Illinois families to take a clear look at what their estate plan actually covers and where gaps may exist. If your revocable trust was drafted without a direct conversation about Illinois estate tax exposure, this is a good time to revisit it. Reach out today to schedule a consultation.