Step-Up in Basis for Inherited Property
When you inherit property, there's a little-known tax rule that can save you thousands. The 'step-up in basis' resets your cost to the property's value at the time of death—not what the original owner paid. Here's how it works, what it doesn't cover, and why getting your paperwork right matters more than you think.
Most people dread selling inherited property, picturing a huge tax bill waiting to wipe out their windfall. But here's the surprise: inherited assets often sell with little or no capital gains tax at all. The reason is something called the 'step-up in basis,' a quiet tax rule that erases decades of appreciation when property passes to heirs. It's not a loophole or special trick—it's just how the tax code works for most of what we inherit.
What 'Basis' Really Means—And How It Resets
When you inherit something, the IRS doesn't care what it cost years ago. They only care about its value on the day the original owner died. Think of it this way: if your mom bought stock for $20,000 and it's worth $180,000 when she passes away, you inherit it at $180,000—not the $20,000 she paid. Sell it for $185,000 a month later, and you're only taxed on that $5,000 gain. The $160,000 of growth during her lifetime? Poof—gone from the tax equation.
There's a technical nuance worth mentioning: executors can sometimes use the value six months after death instead of the date-of-death value. This matters mainly when estate taxes are a concern, but for most families, the simpler date-of-death value works just fine.
And here's another nice surprise: inherited assets automatically qualify for long-term capital gains rates, even if you sell them the very next day. No need to hold for a year.
Community Property States Get an Even Better Deal
If you're in Texas or another community property state, the step-up works even harder. When one spouse dies, both halves of their community property get reset to current value—not just the deceased spouse's half. A surviving Texas spouse can often sell the family home or long-held investments and owe nothing in capital gains tax.
Other states handle jointly owned assets differently, so check your state's rules before assuming you get the same treatment.
What Doesn't Get a Step-Up (And Why That Matters)
The step-up covers a lot, but it has clear exceptions. Mix these up, and you could be looking at a much bigger tax bill than you expected:
- Traditional IRAs and 401(k)s: Every dollar you withdraw counts as ordinary income. No step-up here, because these accounts were never taxed in the first place.
- Unpaid earnings: Bonuses, commissions, or annuity growth the deceased hadn't yet paid tax on—you'll owe what they would have owed.
- Lifetime gifts: This one catches people off guard. If your parent gives you stock while alive, you keep their original cost basis. If they leave you the same stock at death, the basis resets. Same asset, same person, completely different tax outcome.
A gift during life drags the old tax bill along with it. An inheritance leaves that bill at the grave.
Paperwork Makes It Real
The step-up happens automatically, but proving the date-of-death value is your responsibility. If you can't show what something was worth when the person died, the IRS can challenge your numbers—and the burden of proof is on you.
For real estate, get a professional appraisal as close to the death date as possible. An appraisal dated a month or two later that gives a retroactive value works fine and is common practice. For investment accounts, save the monthly statement covering the death date. For household items, photos and a written inventory matter more than most people realize.
Any growth after the date of death is taxable when you sell. For 2026, federal capital gains rates are 0% on taxable income up to $49,450 for singles ($98,900 for couples), 15% up to $545,500 ($613,700 for couples), and 20% above that. A 3.8% net investment income tax may also apply above certain income levels.
The bottom line: sell soon after death, and there's usually little post-death gain to tax. Hold for years, and that early appraisal becomes your proof against a bigger tax bill later.
Common Misconceptions That Cost People Money
I'll owe tax on the entire sale price of Mom's house. Wrong. You only owe tax on the gain above your stepped-up basis. If the house appraised at $300,000 and you sell for $305,000, you're taxed on $5,000—not $305,000.
Gifting property to kids before death saves on taxes. Usually backfires. A lifetime gift keeps the original low basis; an inheritance resets it to current value. There are reasons to gift during life, but saving on capital gains typically isn't one of them.
I need to hold inherited stock for a year for better tax rates. Nope. Inherited assets get long-term treatment immediately—no waiting period.
Making It Work For You
The step-up is generous, but only if someone documents the values while settling the estate. Trying to reconstruct what a house or investment account was worth years later is painful, error-prone, and often costs more in professional fees than getting it right the first time.
That's why we built Legacywyse—to give families a single workspace for the estate inventory: values, photos, supporting documents, and family review. Document everything once, and the step-up question is already answered when it's time to sell.
Review note
Published July 3, 2026. Last reviewed July 3, 2026 against the official sources listed below. Legacywyse Journal articles provide general estate, probate, and personal finance information, not legal or tax advice.