Estate Taxes in Illinois & Federal Estate Tax Basics

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People often assume estate tax applies to every family that owns a home, savings, and a few investment accounts. In reality, most estates never owe federal estate tax. The key point is that Illinois and federal law use different thresholds, filing rules, and planning opportunities. Berardi & Associates helps families and business owners prepare for those issues before a death forces quick decisions under pressure.

If you want to review your exposure before your family is left sorting through valuations, filings, and deadlines, use the firm’s contact page to speak with our estate planning attorney while there is still time to structure the plan carefully.

Illinois Estate Tax Starts Much Lower Than the Federal Tax

The first issue to understand is the gap between the two systems. Illinois continues to use a $4 million estate tax exclusion, and the Illinois Attorney General administers the Illinois estate tax and related filing process. By contrast, the IRS states that the basic federal exclusion amount for 2026 is $15 million, up from $13.99 million for estates of decedents who died in 2025. That difference means an estate can face Illinois estate tax even when no federal estate tax is due.

That mismatch catches families off guard, especially when the estate includes business interests, real estate, life insurance, or retirement assets that push the total value higher than expected. Early planning matters because our estate tax attorney can help identify assets that affect the taxable estate and evaluate whether trust planning, gifting, or business succession work should be addressed sooner rather than later.

Filing Rules Matter Almost as Much as the Tax

Estate tax is not simply a question of whether money is owed. Filing choices can affect elections, deadlines, and what the surviving family is allowed to preserve. The IRS explains that Form 706 is used to calculate federal estate tax, and a portability election for a deceased spouse’s unused exclusion generally requires a timely filed estate tax return. The normal federal due date is nine months after death, although an extension of up to six months may be requested.

Illinois has its own path. The Illinois Attorney General’s office says Illinois estate tax returns must be filed with that office, and the state’s fact sheet explains that Form 700 is the return used for Illinois estate tax. That is one reason families should not assume the federal filing alone resolves everything at the state level. Before deadlines begin to close in, review the details through the firm’s attorneys page or services page and speak with our estate tax lawyer about what needs to be filed, valued, and preserved.

Gifting Can Help, But It Is Not a Full Estate Tax Fix

Lifetime gifting is often part of estate planning, but it should not be treated as a shortcut without context. The IRS states that the annual federal gift tax exclusion for 2026 remains $19,000 per recipient. That can reduce future estate growth over time, but it does not erase every estate tax issue, especially when an estate includes major real property, a family company, or assets that are difficult to value.

Illinois planning also deserves separate attention because the Illinois estate tax system does not simply mirror the federal one. The Illinois Attorney General’s fact sheet notes that federal portability does not apply to the computation of Illinois estate tax. That means a family that is comfortable under federal rules may still need state-focused planning. In that setting, our estate planning lawyer can review whether gifting, trust terms, beneficiary designations, and ownership structure are actually working together.

Valuation Problems Often Drive the Hardest Decisions

Many taxable-estate questions turn on value, not just on asset type. A family business, commercial real estate interest, farm, or ownership share in an LLC may look straightforward in conversation but become harder to price when a return must be filed. That can affect tax exposure, negotiations among beneficiaries, and the documents needed to support the reported value.

This is where planning becomes practical instead of theoretical. A strong estate plan does more than say who receives property. It can help organize records, confirm ownership, coordinate beneficiary designations, and reduce the risk that survivors are left making rushed choices after a death. Reviewing documents, ownership records, and beneficiary designations early can make later administration far more manageable for the people left behind.

Keep the Numbers in Context

Estate taxes are not a concern for every household, but they are serious for families whose assets may cross Illinois’s lower threshold or raise federal filing questions. Berardi & Associates works with clients who want a clearer understanding of how state and federal rules fit together, what elections may matter, and what steps can be taken now to reduce confusion later. If you want your plan reviewed before values, deadlines, and tax exposure become harder to manage, contact us today.