Step-Up in Basis: How Inherited Property Taxes Work in 2026

When you inherit appreciated property, the tax bill you were dreading usually shrinks to almost nothing. That is the step-up in basis — a provision in the tax code that resets the value of an inherited asset to its fair market value on the date the owner died. The appreciation built up over a lifetime of ownership simply disappears for tax purposes.

Understanding the step-up helps you do two things: plan your own estate so your heirs pay the least tax possible, and avoid the mistakes that can forfeit the benefit. Below is how the rule works in 2026, how it is calculated, and where life insurance fits into the same plan.

What Is a Step-Up in Basis?

Cost basis is the value used to measure gain when you sell an asset — usually what you paid for it, plus improvements, minus depreciation. When you inherit an asset, the tax code generally replaces the deceased owner’s basis with the asset’s fair market value on the date of death. That new, higher basis is the “step-up.”

The rule comes from Section 1014 of the Internal Revenue Code. If the asset has lost value, the same provision can produce a step-down, lowering the basis and increasing future gains — so the adjustment cuts both ways, though most inherited assets are stepped up. Because capital gains tax is calculated by subtracting basis from the sale price, a step-up reduces or eliminates the taxable gain.

Heirs also receive the asset as long-term property, which unlocks the more favorable long-term capital gains rates even if they sell soon after inheriting it.

How Step-Up in Basis Is Calculated

There is no formula to memorize. The basis simply becomes the fair market value on the date of death. A simple example makes it concrete.

Without the step-up, the heir would owe capital gains tax on $400,000 of appreciation. With it, they owe tax only on the growth after the date of death — a difference worth tens of thousands of dollars.

If an estate files a federal estate tax return, the executor may elect an alternate valuation date six months after death, using the value at that date instead. This option is available only if it lowers both the gross estate and the estate tax due.

Step-Up in Basis in Community Property States

Married couples in community property states get a distinctive bonus. When one spouse dies, the surviving spouse receives a full step-up on both halves of community property — the deceased spouse’s half and their own. In common-law states, only the deceased spouse’s half is stepped up, leaving the survivor with a lower basis on the remainder.

The nine community property states are Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin. If you live in one, the difference can outweigh many other estate planning considerations.

What Gets a Step-Up — and What Does Not

The step-up applies broadly to property held at death, but not to everything. A few common categories respond differently:

• Stocks and bonds — stepped up to the value on the date of death.
• Real estate — stepped up, including a principal residence and rental property.
• Partnership and LLC interests — generally stepped up; valuation may require an appraisal.
• IRAs and 401(k)s — no step-up; withdrawals are ordinary income to the beneficiary.
• Assets gifted during life — no step-up; the recipient takes the giver’s basis.
• Income in respect of a decedent — untaxed income at death, such as unpaid wages, is not stepped up.

The contrast between gifting and bequeathing is the single most important planning insight. Gift an appreciated asset while you are alive and your beneficiary keeps your low basis; leave it to them at death and the basis steps up. For highly appreciated stock or real estate, waiting can save far more tax than giving early.

Planning Around the Step-Up in 2026

Whether the step-up benefits your family depends on how you hold and transfer assets. Consider these strategies:

1. Bequeath highly appreciated assets rather than selling them during your lifetime.
2. Weigh gifting against bequeathing — gifting passes a lower basis, so reserve gifts for low-appreciation assets.
3. Review titling — jointly held property may step up only partially outside community property states.
4. Use life insurance for liquidity — the death benefit is income-tax free and pays outside probate, so it funds estate taxes and expenses without forcing a sale of inherited property.
5. Document your basis — keep purchase records, improvement receipts, and appraisals so your executor can support the value used.

The 2026 federal estate tax exemption is $15 million per person, so relatively few estates owe federal estate tax. Step-up planning is therefore mostly about income tax for heirs, not estate tax for the decedent.

Where Life Insurance Fits

The step-up in basis reduces the capital gains tax your heirs owe on inherited assets. Life insurance solves a different problem: it delivers immediate, income-tax-free cash that heirs can use for funeral costs, mortgages, estate taxes, and the capital gains tax that does remain.

A death benefit passes directly to the named beneficiary, outside probate, usually within weeks. That liquidity can mean the difference between keeping the family home and selling it at a discount to pay the tax bill. And because the proceeds are generally not counted as income, they complement the step-up rather than duplicate it.

Common Step-Up in Basis Mistakes

• Assuming retirement accounts get a step-up — they do not; withdrawals are ordinary income.
• Gifting appreciated stock to children and inadvertently passing on a low basis.
• Failing to keep records of purchase price and improvements, weakening the stated basis.
• Forgetting the partial step-up on jointly held property in common-law states.
• Overlooking the alternate valuation date election when estate values fall after death.

Each of these is fixable with a review of your titling, beneficiary designations, and records — ideally before anyone dies.

Key Takeaways for Heirs and Executors

The step-up in basis is one of the few tax provisions that rewards patience. The longer an appreciated asset is held until death, the larger the benefit, because every dollar of appreciation during the owner’s lifetime is erased for the heir’s tax purposes. For assets that have grown for decades — a family business, a rental property, a blue-chip stock portfolio — that single rule can save more than any other planning step.

Executors should act deliberately as well. Confirm the exact date-of-death value using a qualified appraisal where real property is involved, keep the documentation with the estate records, and use it to support the basis reported when the asset is eventually sold. Poor records are the most common reason heirs overpay.

• Confirm the date-of-death value before the asset is sold or distributed.
• Keep appraisals, statements, and improvement receipts with the estate file.
• Report the stepped-up basis on the decedent’s final return where required.
• Coordinate the basis decision with the executor’s alternate valuation election.
• Pair the step-up with tax-free life insurance for the liquidity the tax bill demands.

Frequently Asked Questions

Does the step-up in basis apply to inherited stocks and real estate?

Yes. Both stocks and real estate generally receive a stepped-up basis equal to fair market value on the date of the owner’s death, which can eliminate capital gains tax on prior appreciation.

Do IRAs and 401(k)s get a step-up in basis?

No. Retirement accounts are not stepped up. Beneficiaries pay ordinary income tax on withdrawals, so leaving an IRA to a low-bracket heir often makes sense.

What happens in a community property state when a spouse dies?

In community property states, the surviving spouse receives a full step-up on both halves of jointly owned community property, which is more favorable than the half step-up available in common-law states.

Is the step-up in basis going away?

Various proposals to limit or eliminate the step-up have been debated for years, but it remains in effect for 2026 under Section 1014. Any change would require legislation.

How do I prove the basis of inherited property?

Keep purchase records, improvement receipts, mortgage documents, and any appraisals. For inherited assets, use a qualified appraisal or the value reported on the estate tax return.

Can life insurance reduce estate taxes?

A properly structured policy held in an irrevocable life insurance trust can keep the death benefit out of your taxable estate, while giving your heirs cash to pay any taxes and expenses that remain.

Related Resources

• IRS Publication 551: Basis of Assets — how to determine the basis of property, including inherited assets.
• IRS: Capital Gains FAQs — official answers on capital gains and the sale of a home.
• CFPB: Owning a Home — federal housing and homeownership resources.

Keep reading on LifeQuotesWeb:

• Inheritance Tax and Estate Tax Basics
• Life Insurance in Estate Planning
• How Probate Works
• Life Insurance Trusts Explained
• Payable on Death Accounts

Watch: Step-Up in Basis Explained

Get a Free Life Insurance Quote

A step-up in basis protects your heirs from capital gains tax — but it does not hand them cash when the bills arrive. Life insurance pays a tax-free death benefit outside probate, covering estate taxes, final expenses, and the mortgage without forcing your family to sell the assets you worked a lifetime to leave them. Compare free quotes from more than 50 top-rated carriers today.

The step-up interacts with the decedent’s last filing, and the filing mechanics are covered in our guide to the final tax return after a death.

Inheriting an IRA raises a separate set of tax questions. Our guide to inherited IRA rules and the 10-year rule explains when annual withdrawals are required and how to keep the tax bill manageable.

A step-up is only valuable if the asset is still in your estate. Run the numbers both ways with our gift now vs. inherit calculator and you will see exactly how much the step-up is worth against the estate tax you avoid.