State Estate Tax for Widows: What Your Estate May Owe

The 2026 federal estate tax exemption is $15,000,000 per person — large enough that most families never face federal estate tax. But 12 states plus Washington D.C. have their own estate taxes with exemptions as low as $1,000,000. If you live in one of those states and your estate has grown through inheritance, the federal exemption provides zero protection at the state level.

Why the $15M federal exemption doesn't help you at the state level

The One Big Beautiful Bill Act (OBBBA, July 2025) permanently set the federal estate and gift tax exemption at $15,000,000 per person, indexed for inflation.² With portability, a widow can effectively preserve up to $30M in federal exemption. For federal purposes, estate planning pressure has largely eased.

States wrote their own estate tax laws and set their own exemptions — and none of them adopted the OBBBA's $15M threshold. Massachusetts still exempts only $2,000,000. Oregon's threshold is $1,000,000. A widow in Oregon who inherits a $900,000 IRA, owns a $700,000 home, and has $300,000 in her own savings has a $1,900,000 estate — $900,000 above the state exemption — with a potential Oregon estate tax bill her children will face.

Which states have a state estate tax in 2026

Twelve states plus the District of Columbia still levy a separate estate tax as of 2026. Connecticut is included for completeness but poses little practical risk for most widows (its exemption now matches the federal amount). The remaining 38 states have no estate tax at all.

Exemption amounts are approximate as of 2026. Some states index annually. Always verify with your state's department of revenue or an estate attorney for the exact current threshold before planning.

The portability problem: your spouse's state exemption was probably wasted

Federal portability allows you to carry over your late spouse's unused federal estate tax exemption — the Deceased Spouse's Unused Exclusion (DSUE). File Form 706 within 5 years of death (under Rev. Proc. 2022-32) and you effectively have up to $30M in federal exemption. For details, see Filing Taxes After Your Spouse Dies.

State portability is the rare exception. Only Hawaii and Maryland currently allow a surviving spouse to use the deceased spouse's state exemption. In every other estate-tax state, that exemption expired when your spouse died.

What this means in practice: if your late spouse had a $2M Massachusetts estate that passed entirely to you (marital deduction, no MA estate tax), the $2M Massachusetts exemption they could have used for other planning purposes is gone. Your estate now has only your own $2M Massachusetts exemption — and if you've just inherited everything, your estate is likely well above $2M.

What the A/B trust (credit shelter trust) was designed to solve

Before federal portability existed in 2011, married couples used "A/B trusts" — also called bypass trusts or credit shelter trusts — to capture both spouses' estate tax exemptions. The structure still matters enormously in states without portability.

When the first spouse dies, the A/B trust splits into two parts:

• Trust A (marital trust): Assets pass to the surviving spouse, outright or in a QTIP trust. These assets are in the surviving spouse's estate at death and will be subject to estate tax.
• Trust B (credit shelter trust / bypass trust): Funded up to the deceased spouse's state estate tax exemption amount. Held in a separate irrevocable trust — the surviving spouse receives income and certain principal access for health, education, maintenance, and support (the "HEMS" standard), but Trust B assets are not included in the surviving spouse's taxable estate.

The result: Trust B's assets pass to heirs at the survivor's death without being counted in the estate. Both spouses' exemptions are used efficiently, even in states without portability.

If your late spouse's estate plan included an A/B trust structure, this planning was already done. If your estate passed as "all to the surviving spouse" with a simple joint revocable trust, the state exemption was likely forfeited. This is the single most common missed estate planning opportunity in non-portable states, and it can't be undone after the fact.

What you can do now: plan your own estate so your children's inheritance is structured efficiently. For details on what your existing trust did or didn't do, see What Happens to a Living Trust When Your Spouse Dies.

New York's "cliff" rule — a unique trap

New York's estate tax works differently from every other state. Under the standard structure, only the amount above the exemption is taxed. New York has a cliff: if the taxable estate exceeds the exemption by more than 5%, the entire estate is subject to New York estate tax — not just the excess.⁴

Concretely: a New York widow with a $7.3M estate owes no New York estate tax (under the ~$7.16M exemption). A widow with a $7.6M estate — roughly 6% over the exemption — owes New York estate tax on the full $7.6M. The difference between these two estates is roughly $300,000 in value, but the difference in New York estate tax owed can be hundreds of thousands of dollars.

This cliff makes estate planning in New York unusually important for estates in the $5–10M range. Aggressive gifting or charitable strategies to stay below — not just near — the threshold are standard practice for New York estate attorneys.

Planning strategies for widows with taxable estates

If your estate may exceed your state's exemption, the following strategies reduce exposure. Most involve moving assets out of your estate while you are alive, so timing matters — the sooner you act, the more options you have.

Annual gifting

The federal annual gift tax exclusion is $19,000 per recipient in 2026.⁵ Most estate-tax states do not have a separate gift tax, which means gifting is one of the most efficient ways to reduce a state-taxable estate. For a widow with 3 children and 5 grandchildren, that's $152,000 per year leaving the estate without any gift tax return required.

Connecticut is the one notable exception — CT has a gift tax that applies to taxable gifts above the CT exemption. For CT residents, gifts count against both the lifetime estate and gift tax exemption.

529 superfunding

You can front-load five years of 529 contributions in a single year — $95,000 per beneficiary in 2026 ($19K × 5). Funds leave your estate immediately and are held outside it. You cannot make additional annual exclusion gifts to that beneficiary for the next five years, and you must elect this treatment on Form 709 (the gift tax return). With multiple grandchildren, 529 superfunding can move several hundred thousand dollars out of a taxable estate in a single transaction.

Qualified Charitable Distributions from your IRA

If you are 70½ or older, Qualified Charitable Distributions (QCDs) of up to $111,000 per year (2026 limit) directly from your IRA to charity reduce your IRA balance — which would otherwise be includable in your taxable estate — while simultaneously satisfying your required minimum distributions without increasing your adjusted gross income.⁶ This strategy simultaneously improves your IRMAA tier, reduces your estate, and satisfies the RMD obligation. See RMDs After Your Spouse Dies for mechanics.

Charitable remainder trusts

Transfer appreciated assets — inherited stock, rental property, or business interests with a low cost basis — to a charitable remainder trust (CRT). You receive an income stream for life (or a fixed term), a partial charitable deduction in the year of contribution, and the remainder passes to charity at death. The contributed assets leave your estate immediately. This works especially well for low-basis inherited assets where outright sale would trigger capital gains tax.

Direct educational and medical payments

Under IRC §2503(e), payments made directly to an educational institution or medical provider are excluded from gift tax entirely — unlimited, and in addition to the $19,000 annual exclusion.⁷ Paying a grandchild's college tuition directly to the university (not reimbursing the grandchild) removes the funds from your estate with no gift tax return required and no reduction in your annual exclusion for that year.

Considering relocation

Thirty-eight states have no estate tax. If you are considering relocating to be near family or to retire in a warmer climate, the difference between Massachusetts and Florida — or Oregon and Nevada — can be hundreds of thousands of dollars in estate tax your heirs won't owe. To establish a new domicile and escape a prior state's estate tax, you must genuinely sever your connections: new driver's license, voter registration, change of primary residence, and a preponderance of time spent in the new state. Massachusetts and New York are the two states most aggressive about asserting continued domicile after a move.

Does any of this apply to you?

State estate tax isn't a concern for everyone. To determine whether it matters for your situation, you need a rough estimate of your total taxable estate:

• Inherited IRA and 401(k) balances (full current balance, not just what you've withdrawn)
• Life insurance proceeds currently held in accounts
• Home and other real estate (stepped-up fair market value, not original purchase price)
• Brokerage accounts, bank accounts, and savings bonds
• Business interests, rental properties, and other assets

IRAs and retirement accounts are included at full value in the taxable estate — they will be subject to income tax when withdrawn by your heirs, but they are still counted in the gross estate for estate tax purposes. This is the "double tax" problem on large inherited IRAs.

If that total is materially above your state's exemption, estate tax planning deserves attention. State estate tax rates typically run 10–16% on the amount over the threshold. A $1M excess in Massachusetts at an average effective rate of 11% represents roughly $110,000 in avoidable state estate tax — worth the cost of professional planning.

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