Inherited House Step-Up in Basis: The $25,000 Tax Mistake I See Families Make
You just inherited a house. It was your parent's home, full of memories, and now it is yours. But you do not live there. You have a mortgage somewhere else. Or you live out of state. Or the house needs work. Or you simply do not want it.
The question is not emotional. It is financial. Sell it, rent it out, or move in and live there. The answer determines how much of your inheritance you actually keep.
The good news: inherited houses come with one of the largest tax advantages available in the US tax code, called the step-up in basis. When your parent died, the house's tax cost basis reset to its fair market value on the date of death. Every dollar of appreciation that happened during your parent's lifetime is erased for tax purposes.
But there is a catch. That tax advantage can disappear depending on what you do next. Choose the wrong path, and you could owe tens of thousands of dollars in taxes and ongoing property liabilities you do not expect.
How the step-up in basis works
When someone dies and leaves you real estate, the IRS gives you a gift: a reset on the tax cost basis.
Your parent bought the house in 1995 for $200,000. It is now worth $800,000. During their lifetime, if they had sold it, they would owe capital gains tax on the $600,000 gain.
But they did not sell. They died. And when you inherit it, under IRC Section 1014, the IRS steps up your cost basis to the fair market value on the date of death: $800,000.
If you sell the house for $800,000 the day after the funeral, you owe zero capital gains tax. The entire $600,000 gain is erased.
This is the most valuable tax break available to heirs. The Joint Committee on Taxation estimates that stepped-up basis costs the federal government $72.5 billion per year in forgone tax revenue. Much of that benefits high-net-worth families inheriting appreciated real estate.
But this advantage only applies if you do not own the house long enough for it to appreciate significantly after the death date.
Option 1: Sell immediately
This is usually the cleanest financial decision.
You inherit a house worth $800,000. You sell it within a few months for $805,000. Your taxable gain is only $5,000 (the $805,000 sale price minus your $800,000 stepped-up basis under IRC Section 1014). You owe federal capital gains tax at long-term rates (0%, 15%, or 20% depending on your income under IRC Section 1(h)) plus state taxes if applicable.
For most people, that means a tax bill of roughly $750 to $1,500 on a $5,000 gain. Closing costs (roughly 6 to 8%) often wipe out that small gain entirely, leaving you with zero tax liability.
You get the proceeds, clean. You have no ongoing liability. No property taxes, maintenance, insurance, HOA fees, nothing.
The only downside: emotional. You do not keep your childhood home. But financially, it is the cleanest exit.
Option 2: Rent it out
This is where the step-up advantage can be diluted by ongoing appreciation.
You inherit a house worth $800,000. You decide to rent it out instead of selling. You get a tenant who pays $3,500 per month. You are now a landlord earning $42,000 per year in rental income.
Here is what happens to that rental income: Under IRC Section 162, rental income is treated as passive income and is subject to regular federal income tax plus state income tax. It is NOT subject to self-employment tax or Medicare tax (unless you operate a short-term rental business that qualifies as a trade or business, or you are a real estate professional under IRC Section 469(c)(7), which is rare). So your $42,000 in rental income is taxable at your ordinary income tax rate, but you also get to deduct property expenses like taxes, insurance, maintenance, and HOA fees under IRC Section 162(a). If your expenses are roughly 40% of revenue, your net taxable income is roughly $25,000 per year.
For the next 10 years, the market appreciates at roughly 3% per year. The house is now worth $1.07 million.
You finally sell it. Your taxable gain is $270,000 (the $1.07 million sale price minus your $800,000 stepped-up basis). Depending on your income, you owe federal capital gains tax of roughly $40,500 to $54,000 at long-term rates, plus state taxes.
Additionally, during those 10 years you claimed depreciation deductions on the house under IRC Section 168. If you claimed roughly $20,000 to $25,000 in total depreciation deductions, when you sell, you owe depreciation recapture tax under IRC Section 1250(b)(1) on that amount at 25%. That is roughly $5,000 to $6,000 in recapture taxes (separate from the capital gains tax). Important note: you only recapture the depreciation you personally claimed after you inherited the property. The depreciation claimed by your parent during their ownership is eliminated by the step-up in basis and is not recaptured by you.
The stepped-up basis advantage is still there, but it is diluted by the appreciation that happened while you owned the house.
Additionally, as a landlord you have ongoing costs: property taxes, maintenance, insurance, vacancy periods, tenant problems, HOA fees if applicable. For an $800,000 house, expect to spend 30 to 50% of your rental income on these costs, reducing your net profit to roughly $15,000 to $25,000 per year after expenses.
The math only works if the house is in a hot rental market, the property appreciates significantly, and you have the energy to manage tenants. For most inherited houses, it does not work.
Option 3: Move in and live there
This is the most complicated option because it involves timing and the primary residence exclusion under IRC Section 121.
Under current law, if you own a house as your primary residence and live there for at least two of the five years before you sell, you can exclude the first $250,000 of capital gains (single filer) or $500,000 (married filing jointly) from taxation under IRC Section 121(a).
The step-up basis and the primary residence exclusion interact in ways that matter, especially if you rent first and then move in later.
If you inherit a house worth $800,000 and move in immediately, you have a stepped-up basis of $800,000 under IRC Section 1014. If you live there for two years and sell for $850,000, your taxable gain is only $50,000. The primary residence exclusion does not even apply because your gain is less than $250,000.
But if you inherit the house, rent it out for three years, then move in and live there for two years, and then sell it for $1 million, the rules change. Under IRC Section 121(b)(4), if the property was used as a rental (nonqualified use), the exclusion is prorated based on the ratio of time spent as a primary residence to total time owned. The exclusion still applies to the period you lived in the house as your primary residence (two years), but not to the rental period (three years).
More importantly, under IRC Section 1250(b)(1), the depreciation you claimed during the three-year rental period cannot be excluded from taxation. That depreciation is subject to 25% recapture tax, regardless of your overall capital gains rate. So even if your overall capital gains rate is 15%, any depreciation recapture is taxed at 25%.
Here is a simplified example: You rent for three years and claim $18,000 in total depreciation deductions under IRC Section 168. When you sell, that $18,000 is taxed at 25% under Section 1250(b)(1) recapture (recapture), which is $4,500 in taxes. That $4,500 is owed in addition to your capital gains taxes on any post-inheritance appreciation.
So the decision is clear: move in immediately after inheriting, or do not move in at all.
If you move in immediately and live there for at least two of the five years before selling, you maximize both benefits: the stepped-up basis and the full primary residence exclusion under IRC Section 121. If the house appreciated only modestly since the death date, you might owe zero capital gains tax.
If you rent first and then move in later, you lose the benefit of the exclusion on the rental period under IRC Section 121(b)(4), and you cannot escape the 25% recapture tax on the depreciation you claimed under IRC Section 1250.
The rental property trap
This is where most people make expensive mistakes.
You inherit a $500,000 house. You do not know what to do with it. You think: "I will just rent it out for a few years and see what happens."
What happens: You become a landlord. The property taxes, insurance, maintenance, and tenant turnover costs eat 40% of your rental income. The house appreciates 3% per year, compounding to roughly $580,000 in five years.
You finally decide to sell. Your stepped-up basis was $500,000. Your sale price is $580,000. Your taxable gain is $80,000. You owe roughly $12,000 in federal capital gains tax (at 15%), plus state taxes, plus depreciation recapture of roughly $4,500 (on the $18,000 in depreciation you claimed at a 25% recapture rate under IRC Section 1250).
Total tax bill: roughly $20,000 to $25,000.
Meanwhile, over five years of renting, you netted roughly $20,000 after all costs and taxes.
So you sold a $500,000 asset and collected $580,000 in proceeds, lost $25,000 to capital gains and recapture taxes, and netted roughly $555,000 minus closing costs ($44,000) equals $511,000 after tax.
If you had sold immediately, you would have received $500,000, paid roughly $0 in capital gains taxes (because the house had not appreciated), and kept $500,000 minus closing costs ($40,000) equals $460,000.
By renting instead of selling, you pocketed an extra $51,000 over five years but created significant tax liabilities and ongoing management hassles.
The math does not work for most inherited houses unless you are in a hot rental market and the property appreciates significantly.
Which option actually works
The decision depends on three factors: appreciation potential, rental market strength, and your risk tolerance.
Sell immediately if:
- The house is in a stable market with modest appreciation (3% or less per year)
- You do not want to be a landlord
- You need the cash
- The house is old and expensive to maintain
Move in and live there if:
- You actually want to live in the house
- You plan to stay for at least two years
- You can handle the location change
Rent it out only if:
- The market is hot and rents are high relative to property value
- You are a skilled landlord with time and energy to manage tenants
- The property appreciates significantly
- You understand and can manage the tax complexity, including depreciation recapture
For most people inheriting an average house in an average market: sell it immediately, pay minimal capital gains tax thanks to the stepped-up basis under IRC Section 1014, take the proceeds, and move on.
The primary residence exclusion is not a backup plan
One final caution: do not rely on the primary residence exclusion to save you money on an inherited house if you rent it first.
The $250,000/$500,000 exclusion under IRC Section 121 is designed for people who bought their home and lived in it. It is not designed as a tax planning tool for inherited property.
If you inherit a house, move in immediately, live there for two years, and then sell it, the primary residence exclusion applies to your entire ownership period. But you probably do not need it, because the stepped-up basis already eliminated most of your taxable gain.
The exclusion only becomes valuable if the house appreciated significantly after you inherited it and moved in. In that case, the combination of stepped-up basis plus primary residence exclusion can wipe out your entire tax bill.
But do not let the existence of this exclusion trick you into renting an inherited house first and then moving in later, hoping the exclusion will protect you from depreciation recapture and nonqualified use rules under IRC Section 121(b)(4). It will not. The recapture tax on depreciation you claimed during the rental period is locked in at 25% under IRC Section 1250, regardless of the exclusion.
What to do right now
If you inherited a house within the last 90 days:
First, get a professional appraisal. This establishes your stepped-up basis under IRC Section 1014, the fair market value on the date of death. This is your tax baseline. Document it carefully.
Second, consult with a CPA or tax attorney who specializes in inherited property. If you sell within a few months, the tax bill will be minimal. If you hold it longer, the math changes.
Third, decide: sell, rent, or move in. Do not default to renting "just to see what happens." Make a deliberate choice based on the market, your energy level, and the numbers.
Fourth, if you sell, do it quickly while the stepped-up basis advantage is maximized. Every month of appreciation after the death date erodes the tax benefit.
About the author
Kurt Altrichter, CRPS, is the founder and Chief Investment Officer of Ivory Hill, LLC, a fee-only fiduciary registered investment advisory firm based in Edina, Minnesota. He specializes in wealth management for business owners and high-net-worth individuals navigating major financial transitions including inheritance, business sales, and retirement plan design. Kurt is an Investment Adviser Representative under Life Inc. Retirement Services.
To discuss your inheritance or wealth planning situation, contact Kurt at kurt@ivoryhill.com or visit ivoryhill.com.
Apply to work with Kurt: https://calendly.com/ivoryhill/discovery
Disclosure
The information provided in this article is for educational purposes only and should not be construed as personalized investment, tax, or legal advice. Tax laws and inheritance rules are complex and depend on individual circumstances. Consult with a qualified financial advisor, CPA, and estate attorney before making decisions involving inherited assets. Ivory Hill, LLC is a registered investment adviser. Investment Adviser Representative services offered through Life Inc. Retirement Services.
Last verified: April 28, 2026 against IRC Section 1014 (Basis of Property Acquired from Decedent), IRC Section 121 (Exclusion of Gain from Sale of Principal Residence), IRC Section 1250 (Property Subject to Depreciation Recapture), IRC Section 162 (Trade or Business Expenses), IRC Section 168 (Accelerated Cost Recovery System)
