Estate taxes can substantially reduce the positive financial impact that an estate may have otherwise had on an individual’s heirs or beneficiaries. Frequently, testators with valuable property plan in advance to minimize or even eliminate estate tax obligations.
For those in Illinois, planning is far more important than for people living in Indiana or Michigan. Unlike most other states, including the vast majority of Midwestern states, Illinois imposes a state-level estate tax. The threshold for state estate taxation is substantially lower than the federal threshold for estate taxes.
At what point do testators creating or reviewing their estate plans need to address estate tax obligations?
$4 million is the Illinois threshold
Every few years, Illinois state lawmakers revise the threshold for state estate taxes. As of early 2026, any estate worth $4 million or more is subject to Illinois estate taxes. Once the total value of the estate reaches $15 million, then federal estate taxes apply as well.
Testators must plan well in advance to minimize their estate tax obligations. They may sign deeds and other documents to take on co-owners or change how they hold their most valuable resources. They might transfer certain resources to trusts or make strategic gifts to the people who are likely to inherit the majority of their resources anyway.
There are a variety of tactics that can reduce the taxable value of an estate and help Illinois testators diminish their estate tax obligations. Reviewing personal holdings and other financial details with an attorney familiar with estate tax planning can help Illinois testators with millions of dollars in property preserve those resources for people of their choosing, rather than the government.
