Stepped-Up Basis at Death

A stepped-up basis at death means that when a beneficiary inherits property, the IRS resets their cost basis to the asset’s fair market value on the date of the owner’s death. This immediately erases all pre-death gains from the tax code and creates substantial savings when the heir eventually sells.

How the Basis Reset Works

On the date someone dies, every asset they own receives a new basis equal to its fair market value on that exact day. This is not a deferral; it is a permanent erasure of taxable gains that accumulated during the original owner’s lifetime.

The mechanics are simple: The basis is whatever a buyer would reasonably pay for the asset at death. For stocks and bonds, this is the closing market price on that date. For real estate, it is typically a professional appraisal or the selling price if sold quickly. For collectibles, it is a fair market valuation.

Example: A parent buys a painting in 1990 for $50,000. By the time of death in 2024, it is worth $500,000. The heir’s basis is $500,000, not $50,000. The $450,000 gain that accumulated over 34 years is permanently removed from the tax system.

This applies to virtually all property types: stocks, bonds, mutual funds, real estate, artwork, precious metals, antiques, automobiles, and closely held business interests. The only significant exception is inherited retirement accounts (IRAs, 401(k)s, 403(b)s), which do not step up and instead are subject to income tax on the pre-tax balance.

The Tax Savings in Three Scenarios

Scenario 1: Immediate sale. An heir inherits a house valued at $600,000. If the heir sells it the next month for $605,000, the taxable gain is only $5,000 — the appreciation after inheritance. Without a step-up, the heir would owe tax on decades of prior appreciation.

Scenario 2: Hold and later sell. An heir inherits a rental apartment building worth $1.2 million. The heir holds it, collects rent, and sells it five years later for $1.5 million. The taxable gain is $300,000 (not including any depreciation recapture). The step-up erased perhaps millions in pre-death gains.

Scenario 3: Hold indefinitely. An heir inherits a dividend-paying stock and never sells it. The step-up in basis has no direct effect — the heir never sells, so there is no capital gains tax. But the heir’s basis for calculating future depreciation (on real estate) or tracking losses (on wash sales) is reset. And if the heir dies owning the stock, their heirs receive another step-up.

Why the Step-Up Is Valuable

The step-up is valuable precisely because it eliminates the tax on pre-death gains, which is the opposite of how the code treats gifts. When someone gifts appreciated property to a living recipient, the recipient inherits the donor’s original basis. The recipient’s basis does not step up.

Example: A parent owns stock purchased for $20,000, now worth $200,000. If the parent gifts it to an adult child, the child’s basis is $20,000. If the child sells immediately, there is a $200,000 gain. If the parent holds until death and the child inherits it, the child’s basis is the date-of-death value — say $220,000 — and the child owes tax only on any appreciation after inheritance.

This distinction makes inheritance often more tax-efficient than gifting for appreciated property. Individuals sometimes hold appreciated assets specifically to allow heirs to inherit and step up the basis, rather than gifting during life.

Fair Market Value Determination

The stepped-up basis is always the asset’s fair market value on the date of death. For publicly traded securities, this is straightforward: the closing price on that date. For real estate, it is usually determined by appraisal, though the executor may use the selling price if the property sells within a reasonable time after death.

The IRS does not automatically know what date-of-death values were; the estate’s tax return (Form 706) declares these values, and the IRS may challenge them if they seem inflated. Executors typically hire appraisers for significant real estate, collectibles, or business interests to support the valuation.

For estates below the federal estate tax threshold (currently $13.61 million in 2024), no Form 706 is filed, so valuations are never reported to the IRS unless the asset is later sold and the basis is questioned.

Partial Step-Up in Community Property States

In community property states (Arizona, California, Colorado, Idaho, Louisiana, Nevada, New Mexico, Texas, Utah, Washington, Wisconsin), property owned by spouses receives even more favorable treatment. Both the deceased spouse’s half and the surviving spouse’s half receive a full step-up in basis.

In non-community property states, property held in joint tenancy or tenancy by the entirety typically provides a step-up only for the deceased spouse’s share. The surviving spouse’s portion retains the original basis.

Example: A married couple in California holds real estate purchased for $300,000, now worth $800,000, in community property. When one spouse dies, the heir (the surviving spouse) receives a stepped-up basis of $800,000 on the full property, not just half. In a non-community property state, the surviving spouse’s basis would be $550,000 ($150,000 original basis on their half, plus $400,000 stepped-up value on the deceased spouse’s half).

Long-Term Capital Gains Treatment

Any inherited property that is sold receives automatic long-term capital gains treatment, regardless of how long the heir held it after the inheritance date. This is a secondary benefit of the step-up.

Long-term capital gains are taxed at preferential rates (0%, 15%, or 20% for federal tax purposes, depending on income), while short-term gains are taxed as ordinary income rates (up to 37%). An heir who inherits and sells immediately qualifies for long-term rates, which can be a significant savings.

Example: An heir inherits stock worth $100,000 and sells it two weeks later for $120,000. The $20,000 gain is taxed at long-term capital gains rates (likely 15%), not ordinary income rates. This automatic long-term treatment is a benefit even for heirs who sell very quickly.

Limitations: What Does NOT Step Up

Inherited qualified retirement accounts (IRAs, 401(k)s, 403(b)s, SIMPLE IRAs) do not receive a step-up in basis. The beneficiary inherits the account balance and must pay income tax at ordinary rates on any distribution, including withdrawals of the pre-tax contributions and all earnings. Non-spouse beneficiaries are subject to the SECURE Act rules and must generally empty the account within ten years.

Inherited annuities without a step-up in basis treat the inherited balance similarly; the beneficiary pays tax on distributions at ordinary income rates.

Inherited IRD (income in respect of a decedent) items do not step up. These include accrued interest on bonds, deferred compensation, and other items that represent income earned before death but not yet taxed. The heir pays income tax on these at ordinary rates.

For most personal assets and real estate, however, the step-up applies fully.

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