Carryover Basis vs. Stepped-Up Basis in 2026: How Inherited Assets Are Really Taxed

Two assets can be worth exactly the same amount on the day you receive them and carry wildly different tax bills. The reason is basis — the IRS’s record of what was invested in the asset — and the rule that determines your basis depends entirely on how the asset reached you. Property you inherit gets a fresh start at fair market value. Property you are given during the owner’s life usually does not.

In 2026, with the federal estate tax exemption at $15,000,000 per person under the One Big Beautiful Bill extension, the income tax effect of this distinction is often larger than any estate tax question. Here is how carryover basis and stepped-up basis work, and what the difference costs.

What Basis Is, in Plain Terms

Your basis is your investment in the asset for tax purposes. When you sell, taxable gain is the sale price minus your basis. Buy a house for $300,000, spend $25,000 on a new roof, and your basis is $325,000. Sell for $500,000 and the taxable gain is $175,000 — before the exclusion for a principal residence.

Basis only resets in a few circumstances. Receiving property as a gift generally does not reset it. Inheriting property does. That single difference drives an enormous amount of estate planning.

Carryover Basis Under IRC 1015: The Gift Rule

When you make a lifetime gift of property, the recipient generally takes your adjusted basis — the basis “carries over” from donor to donee. The embedded gain is not forgiven; it simply changes hands and waits.

• Example. You bought stock for $10,000. It is worth $80,000 when you give it to your daughter. Her basis is $10,000. If she sells for $90,000, she reports $80,000 of gain — including appreciation that happened entirely while you owned it.
• The holding period tacks. Assets you held long-term stay long-term in the recipient’s hands, which preserves the lower capital gains rate.
• Gift tax paid adjusts basis slightly. Under IRC 1015(d), if you actually paid federal gift tax, the recipient can increase basis by the portion of that tax attributable to the appreciation.

The Dual Basis Rule for Loss Assets

When the asset has fallen below the donor’s basis, the recipient runs on two different numbers:

• To measure a gain, use the donor’s higher adjusted basis.
• To measure a loss, use the lower fair market value on the date of the gift.
• If the sale price lands between the two, no gain and no loss is recognized.

The practical lesson is blunt: never gift an asset that is worth less than its basis. The built-in loss is permanently lost to the family. Sell the asset first, recognize the loss on your own return, and gift the cash.

Stepped-Up Basis Under IRC 1014: The Inheritance Rule

Property acquired from a decedent gets a new basis equal to its fair market value on the date of death — or, if the executor elects, on the alternate valuation date six months later. Every dollar of appreciation (or depreciation) that occurred during the decedent’s lifetime is permanently erased for income tax purposes.

• Example. A rental property bought for $100,000 is worth $500,000 at death. If it was gifted during life, the recipient’s basis is $100,000 and selling for $500,000 produces a $400,000 taxable gain. If it passes through the estate, the heir’s basis is $500,000 and the same sale produces zero taxable gain.
• It works in both directions. If the asset lost value, the basis steps down to the lower fair market value — so heirs should not assume a step-up is always favorable.
• Depreciation starts over. A rental property with a nearly exhausted depreciation schedule gets a fresh 27.5-year (residential) or 39-year (nonresidential) schedule, and there is no depreciation recapture at death.

Side-by-Side Comparison

What the Difference Costs: A Worked Example

Consider a taxable brokerage position with a $5,000 basis now worth $500,000 — the kind of position a parent may have held for forty years.

That $117,810 swing is federal income tax only, before any state tax. With the federal estate tax exemption at $15 million per person in 2026, most families will never owe estate tax on the asset — which means the step-up can be captured at no estate tax cost at all. For households well below the exemption, holding appreciated assets until death and passing them through the estate is often plainly better on the income tax side.

Assets That Do Not Get a Step-Up

Some of the most valuable assets in an estate are excluded from the step-up entirely, and families discover this only when the tax return is due:

• Traditional IRAs and 401(k)s. These are income in respect of a decedent under IRC 691, so the beneficiary pays ordinary income tax on every dollar withdrawn. No basis reset.
• Annuities. Generally retain the original cost basis, with the deferred gain taxed as ordinary income to the recipient.
• Series EE and I savings bonds. Deferred interest remains taxable to the person who cashes them.
• Deferred compensation and accrued but unpaid income items.

The estate tax exemption does not help with any of these. Estate freezes, Roth conversions during life, and careful beneficiary sequencing are usually the tools families use instead.

The One-Year Anti-Abuse Rule in IRC 1014(e)

If it were possible to transfer appreciated property to a dying person purely to grab a step-up, everyone would try. Congress closed the door in IRC 1014(e): when appreciated property was acquired by the decedent by gift within one year of death and then passes back to the original donor or the donor’s spouse, the property keeps the donor’s carryover basis. The step-up is denied.

Three conditions must all be present for the rule to apply:

1. The decedent acquired the property by gift, not purchase, within one year before death.
2. The property had appreciated above the donor’s adjusted basis when gifted.
3. The property passes back to the original donor or the donor’s spouse.

If the property passes to someone else — children, for example — Section 1014(e) does not block the step-up. That limitation is why transfer planning during a terminal illness should never be improvised: the one-year window and the pass-back requirement must be analyzed before any transfer is made.

The Community Property Double Step-Up

Married couples in the nine community property states get an advantage that couples in common law states do not: when the first spouse dies, both halves of community property receive the step-up, not just the decedent’s half. Under IRC 1014(b)(6), a couple who bought a home for $150,000 now worth $750,000 walks away with a full $750,000 basis on the entire property.

In a common law state holding the same asset as joint tenants, only the decedent’s half steps up. The survivor ends up with roughly a $450,000 combined basis and would owe tax on the extra $300,000 of gain if they sold immediately. That gap is one reason couples relocating to a common law state are sometimes advised to preserve the community property character of assets they bring with them.

Planning Takeaways for 2026

1. Hold low-basis appreciated assets until death if your estate is comfortably under the $15 million exemption. The step-up is free; gifting transfers the gain.
2. Sell loss assets before gifting them. The dual basis rule destroys the loss the moment the gift is made.
3. Spend retirement accounts first. They receive no step-up, so leaving them to heirs is the most tax-expensive way to transfer wealth.
4. Document basis now. Keep purchase records, improvement receipts, and reinvested-dividend statements — heirs will need them if no estate tax return is filed and no Schedule A is issued.
5. Review beneficiary designations. A life insurance death benefit passes free of income tax to a named beneficiary and never enters probate, which makes it the cleanest asset in most plans.
6. Get the valuation right at death. A date-of-death appraisal supports the basis your heirs will report if the estate is later examined.

Basis interacts with every other part of an estate plan. If you are working through the sequence, our guides on step-up in basis, inherited IRA rules, the estate tax return (Form 706), the annual gift tax exclusion, and estate planning checklists cover the adjacent rules in detail.

Frequently Asked Questions

What is the difference between carryover basis and stepped-up basis?

Carryover basis applies to lifetime gifts: the recipient takes the donor’s original basis, so the built-in gain follows the asset. Stepped-up basis applies to inherited property: the recipient’s basis resets to fair market value on the date of death, eliminating the decedent’s lifetime appreciation for income tax purposes.

Does an inherited house always get a step-up in basis?

Yes, if the property is included in the decedent’s gross estate and is not income in respect of a decedent. The basis becomes the fair market value on the date of death, or the alternate valuation date if the executor elects it.

Do inherited IRAs get a step-up in basis?

No. Retirement accounts are income in respect of a decedent under IRC 691, so the beneficiary pays ordinary income tax on distributions. Most non-spouse beneficiaries must empty an inherited IRA within ten years.

What happens if I gift an asset that has lost value?

You create a split basis for the recipient: the donor’s higher basis measures gain, and the lower fair market value on the gift date measures loss. The built-in loss is effectively destroyed, so it is usually better to sell the asset and gift the proceeds.

Can I gift appreciated property to a dying relative to get a step-up?

Not to yourself. Under IRC 1014(e), if the decedent acquired appreciated property by gift within one year of death and it passes back to the original donor or the donor’s spouse, the carryover basis applies and the step-up is denied.

What is the federal estate tax exemption in 2026?

$15,000,000 per person under the extension enacted in July 2025. Estates below that threshold owe no federal estate tax, but they still receive the stepped-up basis on inherited assets.

Do I need an appraisal for inherited property?

You need a defensible date-of-death value. If an estate tax return is filed, the value reported on the return generally controls the heir’s basis under the basis consistency rules. If no return is required, a professional appraisal as of the date of death is the cleanest support.

Key Takeaways

• Gifts carry the donor’s basis forward; inheritances reset basis to date-of-death fair market value.
• On a $5,000-basis position worth $500,000, the choice is roughly $118,000 in capital gains tax versus zero.
• Retirement accounts, annuities, and savings-bond interest get no step-up — they are income in respect of a decedent.
• IRC 1014(e) denies the step-up for appreciated property gifted to a decedent within one year that passes back to the donor.
• Community property couples in the nine community property states receive a double step-up at the first death.

Related Resources

• IRS Publication 551 — Basis of Assets
• IRS Publication 559 — Survivors, Executors, and Administrators
• IRS — What’s New in Estate and Gift Tax

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