Capital Gains After Death: How the Step-Up in Basis Works in 2026

When someone dies, most of what they owned quietly resets for tax purposes. Assets that pass to heirs generally receive a new cost basis equal to their fair market value on the date of death — a rule that can erase decades of unrealized capital gains for the people who inherit them. Understanding this “step-up in basis” is one of the most valuable pieces of tax knowledge an heir or executor can have, and it directly shapes how you choose between giving assets during life and leaving them at death.

This guide explains the rule, who benefits, when it can work against you, and how life insurance fits into a complete estate plan.

What Is the Step-Up in Basis?

Cost basis is roughly what you paid for an asset. When you sell it, the difference between the sale price and your basis is a capital gain, and gains are taxed. Under Section 1014 of the Internal Revenue Code, property held at death receives a new basis equal to its fair market value on the date of death. For an appreciated asset, this is usually an increase — a “step-up” — and it wipes out the gain that accumulated during the original owner’s lifetime.

If you had inherited a home bought for $50,000 and worth $500,000 at death, your new basis is $500,000, not $50,000. Sell it for $525,000 and you owe tax on $25,000 — not on the $475,000 of gain that built up over the prior decades.

Why the Step-Up Matters: A Worked Example

Scenario	Original Basis	Sale Price	Taxable Gain
Sold during owner’s life	$50,000	$525,000	$475,000
Inherited, then sold (stepped-up basis)	$500,000	$525,000	$25,000
Tax saved at 15% federal + 5% state (illustrative)	Gain eliminated by step-up		~$50,000

In this example the step-up eliminates roughly $450,000 of taxable gain. That is why the provision is often described as a tax benefit that rivals any advanced planning strategy — and why it is available to ordinary families, not just the wealthy.

Automatic Long-Term Capital Gains Treatment

There is a second, less-publicized benefit. Heirs automatically get long-term holding period treatment on inherited assets, regardless of how long the original owner held them. That means the more favorable long-term capital gains rates apply instead of ordinary income rates, even if the asset had been owned for only a day.

For 2026, long-term capital gains are taxed at 0%, 15%, or 20% depending on your taxable income, and a 3.8% net investment income tax may apply at higher income levels. Assets held one year or less are taxed at ordinary income rates, which can be far higher.

Rate	Applies to (long-term, 2026)	Plus
0%	Lower taxable income brackets	—
15%	Middle and upper-middle brackets	Possible 3.8% NIIT
20%	Highest taxable income brackets	Possible 3.8% NIIT
Up to 28%	Collectibles	—

What Qualifies — and What Does Not

Real estate — homes, land, and rental property generally qualify.
Stocks, bonds, and mutual funds — taxable brokerage accounts qualify; assets inside an IRA or 401(k) do not, because those are taxed as ordinary income when withdrawn.
Business interests — closely held business assets held at death typically qualify.
Assets in a revocable living trust — qualify, because they are still part of the owner’s taxable estate.
Assets gifted during life — do NOT qualify; the recipient takes the giver’s original (carryover) basis.
Assets in an irrevocable non-grantor trust — generally do NOT qualify.

Community Property and the Double Step-Up

In the nine community property states, married couples get an additional advantage: when the first spouse dies, both halves of the community property receive a step-up, not just the deceased spouse’s half. That is the “double step-up,” and it can be worth six figures for a couple with highly appreciated real estate. In separate property states, only the decedent’s half is stepped up.

The 6-Month Alternate Valuation Date

If a federal estate tax return is filed and the estate would benefit, the executor may elect an alternate valuation date six months after death to value the estate. This is used only when assets have declined in value after the death, and it sets the basis accordingly. It is a narrow but occasionally powerful election that an experienced executor or estate attorney should evaluate.

Probing property transfers after a death is part of the wider process of settling a probate estate, and the basis rules interact with how title is transferred to the heirs.

Step-Up vs. Gifting: The Trade-Off

Because gifted assets keep the giver’s basis but inherited assets get a step-up, the order in which you transfer wealth matters enormously. For low-basis, highly appreciated assets, holding until death is often more tax-efficient for the recipient. For tax-deferred or high-basis assets, gifting while living can make sense. This is why “gift mindfully” is standard advice: the estate tax exemption is large ($15 million per person in 2026), so for most families the capital gains savings from the step-up matter far more than estate tax avoidance.

List each significant asset with its basis and current value.
Identify low-basis assets that would benefit most from a step-up.
Compare gifting to bequeathing for each asset.
Check community property status if you are married.
Coordinate with an estate attorney and a tax professional before acting.

Where Life Insurance Fits

Life insurance solves a different problem. A death benefit is generally paid income-tax-free to your named beneficiary and is not part of the probate estate when a beneficiary is named. That makes it a powerful liquidity tool: it can cover estate closing costs, fund inheritance tax obligations, or provide cash so an heir does not have to sell a stepped-up asset prematurely and lose the benefit.

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Importantly, life insurance proceeds themselves are generally not subject to income tax, so they do not enter the capital gains picture at all. Used together with careful basis planning, a policy lets your heirs keep the assets you intended them to keep.

Common Mistakes

Assuming a step-up applies to assets gifted years before death.
Forgetting that IRA and 401(k) balances are taxed as ordinary income, not stepped up.
Ignoring state estate or inheritance tax rules that differ from federal thresholds.
Selling inherited property before confirming the date-of-death value.
Failing to document basis for assets that do not get a full step-up.

Does the Step-Up Apply to a Surviving Spouse?

Yes, in part. When one spouse dies, the deceased spouse’s half of jointly held property receives a step-up, and in community property states both halves are stepped up immediately. In separate property states the surviving spouse’s own half keeps its original basis until that spouse dies, at which point it too can receive a step-up — the “double step-up” that many married couples eventually enjoy.

For a couple that has held a highly appreciated home or stock portfolio for decades, planning the order of ownership and titling can meaningfully increase the total basis the children eventually receive. This is one of the clearest examples of why titling decisions made years before death have large tax consequences afterward.

State Taxes Can Change the Picture

The step-up is a federal income tax rule, but states add their own layers. Several states impose estate or inheritance taxes with thresholds far below the generous federal exemption, and some tax capital gains as ordinary income. An heir in a high-tax state can owe a meaningful bill even when the federal step-up wipes out the federal gain. Executors should check the decedent’s state of residence and the state where each asset sits.

Key Takeaways

Inherited assets generally receive a basis equal to fair market value at the date of death.
Heirs automatically get long-term capital gains treatment regardless of holding period.
Gifted assets keep the donor’s basis — gifting can cost heirs the step-up entirely.
Retirement accounts are not stepped up and are taxed as ordinary income.
Community property states offer a double step-up for married couples.
Life insurance death benefits are generally income-tax-free and can fund settlement costs.

Frequently Asked Questions

What is a step-up in basis?

It is a reset of an inherited asset’s cost basis to its fair market value on the date of death, under IRC Section 1014. It usually eliminates the capital gains tax on appreciation during the deceased owner’s lifetime.

Do inherited assets always get a step-up?

No. Assets held at death generally qualify, but gifted assets keep the donor’s basis, and assets in an irrevocable non-grantor trust generally do not qualify.

Does an IRA get a step-up in basis?

No. Retirement accounts are not stepped up. Distributions to beneficiaries are taxed as ordinary income under the inherited IRA rules.

What are 2026 long-term capital gains rates?

Long-term capital gains are taxed at 0%, 15%, or 20% based on taxable income, with a possible 3.8% net investment income tax at higher income levels. Collectibles can be taxed up to 28%.

What is the double step-up in community property states?

In community property states, both halves of community property receive a step-up when the first spouse dies, rather than only the deceased spouse’s half.

Is life insurance subject to capital gains tax?

No. Life insurance death benefits are generally paid income-tax-free to beneficiaries, so they are outside the capital gains system entirely.

Related Resources

For the next steps in an estate, read our guides to estate closing costs, affidavits of heirship, and handling digital assets after death.

Protect Your Heirs With a Free Quote

A step-up in basis protects your heirs from capital gains tax on what you leave behind — but only if there is cash available to settle the estate without forced selling. Compare free life insurance quotes from 50+ top-rated carriers and make sure the people you love inherit assets, not obligations. Get your free quote today.

Related reading: avoiding transfer tax on inherited wealth.