Imagine a couple who signed their estate planning documents several years ago. Since then, their home has increased in value, their retirement accounts have grown, and one spouse has become a business owner. They still want their property to go to the same people. Does that mean their plan can stay exactly as it is?
It’s a useful question to ask before making changes. Asset growth, a move, an inheritance, or a change in family needs can all be reasons to review your Illinois estate plan. Your documents may still reflect your wishes, but the financial picture behind them may look very different.
Illinois estate tax deserves a place in that conversation. This guide explains what to gather and which questions to raise with your attorney before changing a will, trust, account title, or beneficiary designation. You don’t need to calculate your own tax bill to get started.
Illinois and Federal Estate Taxes Use Different Thresholds
A family can have an Illinois estate-tax filing obligation even when no federal estate-tax return is required. The Illinois Attorney General’s estate-tax instructions list a $4 million exclusion and require Form 700 when the gross estate, including adjusted taxable gifts, exceeds that amount.
The Illinois exclusion is a taxable threshold, rather than a credit against tax. You cannot estimate the bill by subtracting $4 million and applying a flat percentage to the balance. Illinois uses an interrelated calculation. For an educational estimate to discuss with your attorney, try our Illinois estate tax calculator.
For comparison, the IRS lists a $15 million federal basic exclusion for U.S. citizens and residents dying in 2026. Federal filing rules also account for adjusted taxable gifts, and a return may be filed to elect portability for a surviving spouse. Those federal rules do not replace the separate Illinois review.
What does this mean for your family? Start with a current picture of your assets and your past planning. A federal exemption figure you saw in an article, or a tax discussion from years ago, won’t answer every question about your Illinois plan today.
Ask your attorney and tax adviser to distinguish three issues for you. Which assets count? Would a return be required? What tax, if any, would the estate owe? Keeping those questions separate can make the conversation much easier to follow.
Review What You Own and How It Is Titled
You may think of your estate as your house and savings. For tax purposes, the review can reach further. The IRS explains that a gross estate can include both probate and non-probate property, including certain insurance, trust assets, and business interests.
That’s why an account with a named beneficiary or property held in a trust still belongs on your review list. Your attorney can determine its treatment after looking at the details. Moving property into a revocable trust, by itself, does not remove it from estate-tax consideration.
A practical inventory should include the following.
- Real estate. List your home, rental property, vacation property, and any land, including property outside Illinois. Bring copies of deeds when available.
- Bank and investment accounts. Note the approximate balance, account owner, and any payable-on-death or transfer-on-death designation.
- Retirement accounts. Gather recent statements and the beneficiary designations on file with each account provider.
- Business interests. Include ownership documents and any buy-sell agreements, along with the most recent valuation information you have.
- Life insurance. Identify the insured person, policy owner, death benefit, and beneficiaries. Insurance treatment depends on the arrangement, so don’t leave it out simply because proceeds go directly to someone you named.
- Trusts and prior gifts. Bring the full trust documents, amendments, funding records, and any previously filed gift-tax returns.
Approximate values are useful for an initial meeting. Label them with a date and flag anything uncertain. Your attorney can tell you when an appraisal or other valuation work is needed.
Ownership deserves its own check. Is the house jointly owned? Does a trust actually hold the investment account? Did you open a new account after signing the documents? Our guide to setting up and funding an Illinois trust can help you organize those questions before your appointment.
If you own property in more than one state, identify where it is located and how it is held. Ask counsel to evaluate residency and any allocation issues rather than assuming an out-of-state address settles the tax question.
Married Couples Should Review Both Plans Together
For married couples, an Illinois estate-tax review should consider what happens at each spouse’s death. Looking only at your combined household balance can leave important questions unanswered.
The Illinois Attorney General’s instructions specifically state that federal portability of a deceased spouse’s unused exemption does not apply to Illinois estate-tax computation. Marriage therefore does not automatically give the surviving spouse an $8 million Illinois exclusion.
Ask your attorney to walk through the current plan in ordinary language. What would pass to the surviving spouse outright? What would remain in trust? Who would control those assets, and how would the survivor pay everyday expenses?
Then look ahead. Would the surviving spouse’s circumstances change if a business were sold, investments grew or a home were downsized? You don’t need to predict future values precisely. The point is to understand how the plan responds when life changes.
An Illinois QTIP election may also be a topic for review. QTIP means qualified terminable interest property. Illinois permits a state election in addition to a federal election, subject to applicable requirements. Elected property is generally considered again in the surviving spouse’s estate.
This is a technical discussion for your attorney and tax adviser. Ask how any proposed arrangement would affect access to funds, trustee responsibilities, and eventual distributions. The right approach depends on both spouses’ needs and the documents already in place.
Match Planning Choices to Your Family’s Needs
An estate-tax review should help you make informed choices about the people and property that matter to you. A proposal needs to fit your life as well as your financial picture.
If gifting is part of the discussion, start with what you can comfortably afford to give away. What money might you need for retirement, care or an unexpected expense? Ask your advisers to explain the reporting requirements and tax consequences before transferring property.
If a trust change is proposed, ask who would control the assets and how distributions would work. Would the arrangement create ongoing administrative tasks? Who is willing and able to handle them? Make sure you understand which decisions could be changed later.
Beneficiary changes deserve the same care. Before submitting a new form, have your attorney review how it fits with your will, trust, and intentions for each beneficiary. Keep a record of the final designation and confirm that the account provider received it.
Also discuss cash availability. A family may own valuable real estate or a closely held business while having relatively little cash available for expenses. Ask where money for administration and any tax payment would come from, and whether a proposed plan depends on selling an asset your family hopes to keep.
Some circumstances call for additional coordination. Farm ownership, a family business or property in another state can raise valuation and administration questions. Bring relevant records early so your advisers can identify what needs further attention.
Citizenship also matters to the planning conversation. If either spouse is not a U.S. citizen, flag that at the outset and ask which rules apply to your situation. Our discussion of estate planning for non-citizen spouses and families provides background for that more individualized review.
Bring These Questions to Your Estate-Plan Review
You can make the first meeting productive without arriving with every answer. Gather your signed documents, recent statements, ownership records, and a short list of what has changed. Then work through these questions together.
- What has changed in our family, assets, residence, or goals since we signed our documents?
- Which assets and prior gifts matter to our Illinois estate-tax review?
- Does our current ownership and beneficiary setup work with our wills and trusts?
- For spouses, what happens at the first death and in the surviving spouse’s later estate?
- Which choices preserve access to money while supporting the people we want to provide for?
- What documents, account changes, or follow-up steps would be needed, and who will handle each one?
Before the meeting ends, ask for a clear explanation of the recommended next steps. You should understand why a change is being suggested, what trade-offs come with it, and which decisions still need more information.
Plan Forward Legal can help you review your existing documents in light of your family’s current circumstances. If it’s been a while since you looked at your plan, schedule an estate-plan review with Plan Forward Legal and bring your questions. A thoughtful conversation now can help you decide what needs attention and move forward with a clearer understanding of your options.
