New Illinois and Federal Estate Planning Law Changes for 2026: What Families Need to Know Now

  • Estate Planning
  • Illinois Probate Law
New Illinois Estate Planning Laws

Estate planning laws are changing in meaningful ways for 2026  –  and while some of these updates create new opportunities, they also introduce uncertainty for Illinois families who want to protect what they’ve built.

Between proposed changes to the Illinois estate tax exemption and a significant federal estate tax update, 2026 is shaping up to be a pivotal year for estate planning. Whether your estate is modest or substantial, proactive planning now can prevent unnecessary taxes, delays, and family conflict later.

Below, we break down what’s changing, what’s still uncertain, and why this is the right time to review  –  or create  –  your estate plan.

 

Illinois Estate Tax Exemption: Proposed Changes for 2026

Illinois is one of the few states with its own estate tax, and the current exemption is significantly lower than the federal exemption. That gap has long caught families by surprise.

During the 2025–2026 Illinois legislative session, lawmakers introduced several bills that could dramatically change how much Illinois residents can pass on tax-free.

Key Illinois Proposals Under Consideration

HB2601 (and similar HB1457)

  • Proposes increasing the Illinois estate tax exemption to $8 million

  • Alternative language would align Illinois with the federal exemption

  • Applies to deaths on or after January 1, 2026

HB1731

  • Proposes an indexed exclusion amount

  • Starts at $5.3 million in 2026

  • Adjusted annually for inflation

HB0012

  • Proposes a more modest increase to a $6 million exemption

Why These Proposals Matter

Currently, Illinois’ estate tax exemption is much lower than the federal amount, meaning:

  • Estates that owe no federal estate tax may still owe Illinois estate tax

  • Families are often caught off guard by state tax liability

  • Poor planning can result in avoidable tax bills and rushed decisions

While none of these proposals are final yet, they signal a strong legislative push to modernize Illinois estate tax laws. Planning before changes take effect gives families more control and flexibility. Estate and Probate Legal Group will keep you updated on the status of these proposed Illinois estate planning changes. 

 

Federal Estate Tax Changes for 2026: Higher Exemption Made Permanent

At the federal level, the news is far more settled  –  and favorable for many families. The One Big Beautiful Bill Act (OBBBA), passed on July 4, 2025, provides relief for people worried about the end of the estate tax exemption from the Tax Cuts and Jobs Act (TCJA). However, the new law does not remove the need for careful estate planning, it just changes the rules. 

 

Federal Estate & Gift Tax Exemption Increase

Starting January 1, 2026, the federal estate and gift tax exemption will increase to a baseline of $15 million per person, indexed for inflation.

Even more importantly:

  • Recent legislation made this higher exemption permanent

  • This prevents a previously scheduled drop to a much lower exemption

  • Married couples may effectively shield $30 million or more with proper planning

Why Permanence Matters

For years, estate planning at the federal level has been shaped by “use it or lose it” uncertainty. Permanency changes the conversation:

  • Long-term strategies are more reliable

  • Gifting and trust planning can be more deliberate

  • Families can plan without fear of sudden rollback

That said, federal law does not override Illinois estate taxes, which is why state-level planning remains critical.

 

What These 2026 Changes Mean for Illinois Families

The combination of:

  • A high, permanent federal exemption

  • Potentially increased Illinois exemptions

  • Ongoing uncertainty at the state level

Creates both opportunity and risk.

Without updated planning:

  • Your estate may still face Illinois estate taxes

  • Outdated wills or trusts may miss new opportunities

  • Beneficiaries could face delays, probate issues, or unnecessary costs

With proper planning:

  • You may reduce or eliminate Illinois estate tax exposure

  • Protect more assets for your family

  • Simplify probate and administration

  • Preserve privacy and control

 

Why 2026 Is the Right Time to Review Your Estate Plan

Even if you already have a will or trust, it may not reflect:

  • New exemption thresholds

  • Changes in asset values

  • Updated family circumstances

  • Better tax-planning strategies now available

Estate plans are not “set it and forget it.” Legislative changes are one of the most important reasons to review them.

 

Protect Your Legacy With Experienced Local Guidance

Estate planning is not just about numbers  –  it’s about protecting your loved ones, avoiding unnecessary conflict, and preserving what you’ve worked a lifetime to build.

With major Illinois proposals and significant federal changes taking effect in 2026, now is the time to act.

👉 Schedule a consultation with an experienced Oak Brook estate planning and probate attorney to review your current plan or build one that reflects the new legal landscape.

We help individuals and families:

  • Navigate Illinois and federal estate tax laws

  • Minimize taxes and probate exposure

  • Create clear, enforceable plans tailored to their goals

  • Gain peace of mind knowing their legacy is protected

Don’t wait for the laws to change and hope your plan still works.
📞 Contact us today and take control of your estate planning for 2026 and beyond.

Schedule A Consultation
630.382.8065