A life estate qualifies for a full step-up in basis only when the person who died created it on property they already owned and kept the right to live there for life. In that setup, federal law pulls the property back into the decedent’s taxable estate, and estate inclusion is what triggers the basis reset to fair market value on the date of death. When someone else gave the decedent the life interest, the property was never theirs for estate tax purposes, and the heirs inherit a carryover basis instead.
Why Estate Inclusion Controls the Basis Reset
Basis is the IRS’s measure of what a property cost. It starts at the purchase price, climbs with capital improvements, and drives the taxable gain when the property sells. A home bought for $100,000 that sells for $500,000 produces $400,000 of taxable gain.
Death changes that math. When property passes from a decedent, the heir’s basis is reset to the property’s fair market value on the date of death.1Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent The Treasury regulation ties the new basis directly to the value used for federal estate tax purposes.2eCFR. 26 CFR 1.1014-1 – Basis of Property Acquired From a Decedent That link matters, because the step-up statute applies only to property “acquired from a decedent,” a term the code defines to include property required to be included in the decedent’s gross estate.
So the question with any life estate is simple. Is the property in the life tenant’s gross estate at death? If yes, the remainder beneficiaries get a step-up. If no, they don’t.
Retained Life Estate: Full Step-Up
The most common arrangement is also the one that works. A parent deeds the family home to their children but keeps the right to live in it for the rest of their life. The parent is the life tenant, the children are the remainder beneficiaries, and full ownership passes to the children automatically at the parent’s death.
Federal tax law treats the property as if the parent still owned it. The statute is direct: when someone transfers property but keeps the right to possess or enjoy it, or the right to income from it, for life, the property’s full value returns to their gross estate at death.3Office of the Law Revision Counsel. 26 USC 2036 – Transfers With Retained Life Estate That inclusion turns on the step-up. The children’s basis in the property becomes its fair market value on the date the parent dies.
The numbers make the benefit concrete. A home bought for $150,000 in 1985 and worth $1.2 million when the parent dies in 2026 lands in the children’s hands with a $1.2 million basis. A sale shortly afterward at that price produces no taxable gain. Decades of appreciation are wiped out for income tax purposes.
Gifted Life Interest: No Step-Up
The picture flips when the life tenant is not the original owner. Say a grandparent deeds a home to their adult child for the child’s life, with grandchildren as the remainder beneficiaries. The child lives there for twenty years and then dies. Because the child never owned the property outright, only the right to use it, the property is not included in the child’s gross estate. No estate inclusion means no step-up.
The grandchildren inherit the grandparent’s original basis under the carryover rule for gifts.4Office of the Law Revision Counsel. 26 USC 1015 – Basis of Property Acquired by Gifts and Transfers in Trust If the grandparent bought the property for $50,000 and it’s worth $900,000 when the child dies, the grandchildren’s basis is still $50,000. Selling at $900,000 creates $850,000 of taxable gain. At federal long-term capital gains rates of 15% or 20%, the tax bill can reach six figures.
The distinction reduces to one test. Did the person who died retain the life interest in property they previously owned? If yes, the property comes back into the estate and the step-up applies. If someone else placed them in the life interest, the property was never theirs for estate tax purposes and the step-up is off the table.
Selling the Property Before the Life Tenant Dies
One trap catches families who assume they can sell during the life tenant’s lifetime and treat gain the normal way. The tax code has a different rule for that situation.
When a life interest or a remainder interest was acquired by gift or inheritance, and the holder sells only their piece of the property, the basis attributable to that interest is treated as zero. The statute says basis determined under the gift or inheritance rules is “disregarded” when computing gain on the sale of a life interest, a remainder interest, or an income interest in a trust.5Office of the Law Revision Counsel. 26 U.S. Code 1001 – Determination of Amount of and Recognition of Gain or Loss The entire sale price becomes taxable gain.
One exception matters. If the life tenant and every remainder beneficiary sell the entire property to a third party in the same transaction, the basis is not disregarded.5Office of the Law Revision Counsel. 26 U.S. Code 1001 – Determination of Amount of and Recognition of Gain or Loss The full adjusted basis is then allocated between the life tenant and remainder holders by their respective interests, and gain is computed normally for each. A remainderman who sells just their share to a sibling or an investor walks straight into the zero-basis result.
The math is also why many families wait. If the life tenant is elderly and the property has appreciated significantly, holding until death lets the remainder beneficiaries take the stepped-up basis and often owe nothing. Selling first, even under the whole-property exception, puts the low original basis in play.
Estate Tax Filing and Documenting the New Basis
Including the property in the gross estate does not mean estate tax is actually owed. The federal estate tax exemption for 2026 is $15 million per person, and only estates above that threshold need to file Form 706.6Internal Revenue Service. Whats New – Estate and Gift Tax7Internal Revenue Service. Instructions for Form 706 Most retained life estates sit well below that line, so the step-up applies without any estate tax being paid.
When Form 706 is filed, the executor also files Form 8971 and gives each beneficiary a Schedule A showing the inherited basis of the property they received.8Internal Revenue Service. About Form 8971, Information Regarding Beneficiaries Acquiring Property From a Decedent Below the filing threshold, no Form 8971 is required. The step-up still applies, but the remainder beneficiaries should get a date-of-death appraisal and keep it. The IRS can question basis years later when the property is eventually sold, and contemporaneous valuation is the cleanest defense.
Executors of estates that do file Form 706 have one more option. If property values drop after death, the executor can elect to value estate assets six months after the date of death instead.9Office of the Law Revision Counsel. 26 USC 2032 – Alternate Valuation The election is available only when it reduces both the gross estate and the estate tax owed, and if the property is sold or distributed within the six months, the value on that date is used instead.10eCFR. 26 CFR 20.2032-1 – Alternate Valuation The alternate date also becomes the stepped-up basis, so the choice trades lower estate tax for a lower basis for heirs. Families under the exemption never face this trade.
The Medicaid Overlap
Many families set up a life estate for reasons unrelated to income tax basis. The most common is protecting the home from Medicaid estate recovery. The two goals overlap awkwardly. Federal law requires every state to recover Medicaid long-term care costs from the estates of deceased recipients, and states may expand the definition of “estate” beyond probate assets to include life estates.11Office of the Law Revision Counsel. 42 USC 1396p – Liens, Adjustments and Recoveries, and Transfers of Assets Whether a life estate actually shields the home depends on which definition a state uses. An irrevocable trust structured to remove the property from the estate can offer stronger Medicaid protection but forfeits the step-up, because removing the property from the gross estate is exactly what breaks the basis reset. The right answer depends on state law, the parent’s health, and how far out the family is from any Medicaid application.
The One-Line Test
If the person who died created the life estate on their own property and kept the life interest, the remainder beneficiaries get a full step-up to fair market value at death. If the person who died was placed in the life interest by someone else, the beneficiaries take a carryover basis and can face substantial capital gains when they sell. Everything else about a life estate follows from that single distinction.