What Is Step Up In Basis?
First American Title April 7, 2026
First American Title April 7, 2026
When a person passes away and leaves property to their heirs, the tax implications can be significant. However, U.S. tax law includes a provision known as the step-up in basis that can drastically reduce the tax burden for beneficiaries. This rule plays a central role in and can mean the difference between owing large and paying none at all.
A step up in basis refers to the readjustment of the value of an asset for tax purposes when that asset is inherited. Specifically, when someone inherits property, the asset’s cost basis (the original value used to determine capital gains) is “stepped up” to its current fair market value (FMV) at the time of the decedent’s death.
Let’s break this down using an example.
If a person purchases a stock for $50,000, that amount is considered their basis. If that stock appreciates over time and is worth $150,000 at the time of their death (the “date of death valuation”), and it is then inherited by a beneficiary, the beneficiary’s new cost basis becomes $150,000. If the beneficiary sells it immediately at that price, they owe no capital gains tax. This step effectively erases the $100,000 in unrealized gains for tax purposes.
Before diving deeper, it's important to understand cost basis.
Cost basis is essentially what you paid for an asset. It includes the purchase price and any additional costs associated with the purchase (such as brokerage fees or commissions). When you sell an asset, you are taxed on the difference between the sale price and the cost basis — this is known as a capital gain.
But if you inherit an asset, you usually don’t keep the decedent’s original cost basis. Instead, the IRS allows the asset to be revalued at the time of death, thus giving the beneficiary a cost basis adjustment.
This adjustment reduces the potential capital gains tax burden if the beneficiary decides to sell the asset.
Fair market value is a crucial concept in this process. It refers to the price that an asset would sell for on the open market at the time of the decedent’s death. This is determined either by appraisal or by referencing the asset’s market price if it is a publicly traded security.
This date of death valuation becomes the new cost basis for the heir. If the asset is later sold, the capital gains (and therefore the capital gains taxes) are calculated based on the difference between this new value and the eventual sale price.
Let’s consider another example.
Suppose a person bought a piece of real estate for $200,000 and it appreciated to $500,000 at the time of their death. If their heir sells the property for $510,000 shortly after, they only pay capital gains tax on the $10,000 difference between the sale price and the fair market value at the decedent’s death. They don’t pay taxes on the full $310,000 gain from the original purchase price.
One of the most significant benefits of the step-up in basis is the potential to eliminate or significantly reduce capital gains tax liability on appreciated assets.
If the beneficiary of the inherited property sells it shortly after inheriting it, and there has been little change in value, they may owe little or no capital gains tax. This can save thousands or even millions of dollars in some cases.
Compare this to gifting an asset during one’s lifetime. In that scenario, the recipient receives the asset with a “carryover basis,” meaning the original cost basis of the giver is passed to the recipient. If the asset has appreciated significantly, the recipient will face a much larger tax bill when they sell.
By contrast, inheriting the same asset would result in a step-up in basis, minimizing the taxable gain.
It’s important to distinguish between estate tax and capital gains tax, as they apply to different aspects of a transfer of wealth.
Estate tax is a tax on the total value of a deceased person’s estate, applied before any assets are distributed to heirs. In the U.S., only estates exceeding a certain threshold (currently over $13.99 million as of 2025, and increased to $15 million effective January 1, 2026, under the Opportunity, Balance and Better Budget Act) are subject to federal estate tax. Some states have their own estate or inheritance taxes.
Capital gains tax, on the other hand, is applied when an asset is sold, and it is based on the increase in value from the time of acquisition (the basis) to the time of sale.
The step-up in basis is particularly valuable for families looking to reduce capital gains taxes on appreciated assets like real estate, stocks, or valuable collectibles. However, this does not necessarily eliminate estate tax obligations if the estate is large enough to exceed the federal or state exemption limits.
The date of death valuation is the linchpin in the step-up in basis calculation. It determines the fair market value of the inherited property on the day the decedent died.
This valuation must be documented carefully, as it will be used to determine the new cost basis for the beneficiary. In cases where the asset is not easily appraised — like rare collectibles, art, or privately held businesses — a professional appraisal is necessary.
Alternatively, the executor of the estate may elect an alternate valuation date, which is six months after the date of death. This is only allowed if it results in a lower overall value for the estate and a reduction of estate taxes due. The option cannot be used solely to reduce capital gains taxes.
Whether the standard date of death or the alternate valuation date is used, accurate documentation is critical, as these numbers will be the foundation for future tax calculations.
Not all assets receive a step-up in basis. Here are the most common types that do:
Real estate: Primary homes, rental and investment properties, land.
Stocks and bonds: Publicly traded securities and mutual funds.
Businesses: Interests in closely held or private businesses.
Collectibles: Art, antiques, coins, etc.
Other personal property: Cars, jewelry, and valuable items with documented value.
Assets held in a revocable living trust also receive a step-up in basis upon death, as the assets are treated as part of the estate for tax purposes. By contrast, most assets held by irrevocable trusts do not receive a step up in basis unless specifically structured to include the assets in the decedent’s taxable estate.
Some assets do not qualify for a step-up in basis. These include:
Retirement accounts: Traditional IRAs, 401(k)s, and similar tax-deferred retirement accounts. Beneficiaries will pay income tax on distributions.
Annuities: Most non-qualified annuities pass to heirs with income tax obligations.
Gifts made during the giver’s lifetime: These transfer the original basis (carryover basis), not a stepped-up one.
Understanding which assets receive a step-up in basis can be critical for smart estate planning and minimizing future tax burdens.
Given the tax advantages, many financial planners recommend holding on to appreciated assets until death to take advantage of the step-up in basis. Here are a few strategic approaches:
Rather than selling an appreciated asset during one’s lifetime and paying capital gains tax, some individuals choose to retain ownership so that their heirs can inherit the asset and benefit from a stepped-up basis.
Assets placed in a are still considered part of your estate for tax purposes and thus still receive a step up in basis. Trusts also allow for more streamlined asset transfers upon death.
As mentioned earlier, lifetime gifts do not receive a step-up in basis. If the recipient sells the gifted asset, they may face significant capital gains taxes based on the original purchase price.
For very wealthy estates, the potential estate tax may outweigh the benefits of a step-up in basis. Advanced planning, including irrevocable trusts and other legal structures, may be necessary.
When property is owned by spouses with rights to each other’s interests upon death, the surviving spouse receives a stepped-up basis in the portion of the property inherited by the decedent spouse. However, for spouses residing in community property states, the surviving spouse receives a step-up in basis in the entire property.
The step-up in basis is a powerful tool in estate and tax planning that can significantly reduce or even eliminate capital gains tax on inherited property. That includes real estate that was purchased by a decedent via one or more. By adjusting the cost basis of appreciated assets, such as real estate, to their fair market value at the date of death valuation, heirs often enjoy a major tax advantage.
However, not all assets qualify, and the interaction with estate tax laws can complicate planning for larger estates. Accurate documentation, timely appraisals, and strategic planning are essential to maximize the benefits of this rule.
Whether you're an heir, an investor, or someone planning your estate, understanding how the step-up in basis works is critical to preserving and transferring wealth efficiently. Open an order with First American Exchange Company to get in touch with a representative and start your 1031 exchange today.
Stay up to date on the latest real estate trends.
Marin County Housing Market
What's happening in the Marin County real estate market right now? March 2026 data on prices, inventory & trends in Kentfield, San Rafael & Novato.
Communities
Looking for the best San Rafael neighborhoods for families? Explore schools, safety, parks & home prices across Terra Linda, Sun Valley & more.
Interest Rates
Rates may be lower, but mortgage interest rates aren’t the only thing holding back would-be buyers.
California Housing
