Illinois does not have an estate tax

Illinois has no state-level estate tax. When someone dies, their estate does not owe a tax to the state of Illinois based on the value of what they leave behind. This is different from the federal estate tax, which the IRS collects on estates above a certain value, but Illinois itself does not impose its own version of that tax.

This means that if you live in Illinois or own property there, you will not face a state estate tax bill when you pass assets to heirs. However, the federal estate tax may still explore depending on the total value of the estate, and other states where you own property might have their own estate or inheritance taxes that could affect your situation.

Key Takeaways

  • Illinois does not collect an estate tax on the value of property left to heirs, so state-level estate taxes are not a concern for Illinois residents.
  • The federal estate tax still applies to very large estates regardless of where you live, and the federal exemption amount changes periodically.
  • If you own property in another state, that state's estate or inheritance tax rules may explore to that property even if you live in Illinois.
  • The absence of a state estate tax in Illinois does not eliminate the need for a will, trust, or other estate planning documents.

How the federal estate tax differs from state estate tax

The federal government collects an estate tax through the IRS on estates that exceed a certain value. That threshold changes every few years based on inflation adjustments set by Congress. The federal tax rate applies to the portion of an estate above the exemption amount, and the rate is the same no matter which state you live in.

A state estate tax, by contrast, would be collected by the state government on estates within that state's borders. Some states have their own estate taxes in addition to the federal tax, which means executors would file returns with both the IRS and the state. Illinois is not one of those states. Because Illinois has no state estate tax, you will not file an Illinois estate tax return or owe money to the state based on the size of the estate.

States that do have estate taxes

Seventeen states plus Washington, D.C., currently collect their own estate taxes. These states are Connecticut, Delaware, Hawaii, Illinois's neighbor Iowa, Kentucky, Maine, Maryland, Massachusetts, Minnesota, Mississippi, Missouri, Nebraska, New Jersey, New York, Oregon, Rhode Island, Vermont, and Washington. Each of these states sets its own exemption threshold and tax rate, which means an estate might owe federal tax, state tax, or both depending on where the person lived and owned property.

If you own property in one of these states while living in Illinois, that property may be subject to that state's estate tax even though you are an Illinois resident. For example, if you own a vacation home in New York and die, New York may tax the value of that home as part of your estate, separate from any federal tax owed. This is why people who own property across multiple states often work with an estate planning attorney who understands the rules in each state.

What Illinois residents should know about federal estate tax

Although Illinois has no state estate tax, the federal estate tax can still affect Illinois residents with large estates. The federal exemption amount—the value below which no federal estate tax is owed—is set by Congress and adjusted for inflation each year. In recent years this exemption has been in the millions of dollars, but it is scheduled to decrease in the future unless Congress changes the law.

If your estate exceeds the federal exemption at the time of your death, your executor will need to file a federal estate tax return with the IRS and may owe federal tax on the amount above the exemption. This applies whether you live in Illinois or any other state. The federal tax rate is a flat percentage applied to the taxable portion of the estate. Working with an estate planning professional can help you understand whether your estate might be affected and what strategies might be available to you.

Inheritance tax versus estate tax in other states

Some states collect an inheritance tax instead of (or in addition to) an estate tax. An inheritance tax is paid by the people who receive the money or property, not by the estate itself. The amount owed often depends on how closely related the heir is to the person who died—spouses and children typically pay less or nothing, while more distant relatives or unrelated people pay more.

Illinois has neither an estate tax nor an inheritance tax. This means heirs do not owe state tax to Illinois based on what they receive. However, if you receive an inheritance from someone who lived in a state with an inheritance tax, you may owe tax to that state depending on the state's rules about where the heir lives and the relationship between the heir and the deceased.

Estate planning in Illinois without state estate tax

The absence of a state estate tax in Illinois does not mean you can skip estate planning. A will, trust, or other documents are still necessary to direct how your property is distributed, name a guardian for minor children, and name someone to manage your estate. Without these documents, Illinois law determines who inherits your property through a process called intestate succession, which may not match your wishes.

Estate planning also addresses issues beyond taxes, such as healthcare decisions, power of attorney, and the management of property during your lifetime or if you become unable to make decisions. Many people work with an attorney to create an estate plan that fits their situation, even in states without estate taxes. The cost and complexity of your plan depends on the size and nature of your assets and your family circumstances.

Property ownership across state lines

If you own real estate in another state—such as a vacation home, rental property, or land—that property may be subject to that state's estate or inheritance tax rules when you die. The state where the property is located generally has the right to tax it, regardless of where you live. This is one reason people who own property in multiple states should review their estate plan with an attorney who understands the tax rules in each state involved.

Some states also have rules about how they tax property owned by non-residents. For example, a state might tax real estate located within its borders but not bank accounts or investments held elsewhere. Understanding these rules helps you plan for the total tax burden your estate might face and can inform decisions about how to hold or transfer property.

Frequently Asked Questions

Do I need to file an estate tax return with Illinois if someone dies?

No. Illinois does not have a state estate tax, so you will not file an estate tax return with the state. If the estate is large enough to owe federal estate tax, you will file a federal return with the IRS, but not with Illinois.

If I live in Illinois but own a home in Iowa, will my estate owe Iowa estate tax?

Possibly. Iowa collects an estate tax on property located within the state. Your Iowa property may be subject to Iowa's estate tax even though you live in Illinois. An attorney familiar with both states' rules can tell you whether your estate would owe tax based on the value of the Iowa property and the current exemption amount.

Can I avoid the federal estate tax by living in Illinois?

No. The federal estate tax applies to all U.S. residents and citizens regardless of which state they live in. However, the federal exemption is high enough that many estates do not owe federal tax. Whether your estate will owe federal tax depends on its total value at the time of death and the exemption amount in effect that year.

What happens to my property if I die without a will in Illinois?

Illinois law determines how your property is distributed through intestate succession. Generally, property goes to spouses, children, and other relatives in an order set by state law. This process can be slower and more expensive than following a will, and the result may not match what you would have chosen.

Do I owe inheritance tax to Illinois on money I receive from someone's estate?

No. Illinois does not have an inheritance tax. Heirs do not owe tax to Illinois based on what they receive. However, if the person who died lived in a state with an inheritance tax, you may owe tax to that state depending on its rules.