Are Closing Costs Added to Basis or Deductible?

Closing costs are either added to your property’s basis or deductible in the year you buy, and the split follows a single rule: fees tied to acquiring the property get capitalized into basis, while fees tied to getting the mortgage do not.¹ A smaller set of purchase-year charges, mainly prorated property taxes and qualifying mortgage points, are deductible on Schedule A instead. Everything else, including homeowner’s insurance and lender-required appraisals, gives you no tax benefit at all.

Getting each fee into the right bucket is worth real money. A cost added to basis shrinks your taxable gain when you sell, sometimes years or decades later. A cost deducted now cuts this year’s tax bill. A cost in the third bucket does nothing.

The Cash Test

The IRS uses a simple thought experiment to sort settlement charges. If you would have paid the fee even when buying the property with cash, it belongs in basis. If the fee exists only because you took out a mortgage, it doesn’t.²

Title insurance, transfer taxes, recording fees, and survey costs all pass the test because they exist to transfer ownership. A lender’s appraisal, credit report, and origination fee all fail because they exist to serve the loan. Run each line on your Closing Disclosure through that question and most of the classification work is done.

Closing Costs That Get Added to Basis

Anything that passes the cash test gets capitalized, meaning it’s stacked onto the purchase price to form your starting basis. The IRS lists the following as capitalizable settlement costs:²

Abstract and title search fees for researching the property’s ownership history and preparing the deed.
Owner’s title insurance, which protects your ownership rights against title defects. The lender’s title insurance policy is a separate line item and is a loan cost, not a basis item.
Recording fees the county charges to register the deed.
Transfer or stamp taxes imposed by the state or locality on the ownership transfer.
Survey costs for establishing legal boundaries.
Legal fees for preparing the sales contract, reviewing title, and drafting the deed.
Impact fees and utility connection charges paid to hook the property up to water, sewer, or other services.
Amounts you agreed to pay that the seller actually owed, such as back property taxes, accrued interest, or repair costs.

That last item catches people out. If you covered the seller’s delinquent property taxes as part of the deal, that money isn’t a separate deduction. It’s part of what you paid to acquire the property, and it goes into basis.

Seller Credits

A credit from the seller reduces the effective purchase price, which in turn reduces your starting basis. If the seller credits you $8,000 on a $300,000 sale, you start at $292,000 plus whatever capitalizable closing costs you paid out of pocket. Seller-paid points on your mortgage work the same way: your basis is reduced by the amount of those points.¹

Closing Costs You Can Deduct in the Purchase Year

A handful of settlement charges give you a tax break now instead of at sale. Because you claim the benefit currently, these items cannot also be added to basis. Deducting and capitalizing the same dollar would be double-dipping.

All of these deductions live on Schedule A, so they only help if your total itemized deductions beat the standard deduction. For 2026, that hurdle is $16,100 for single filers and $32,200 for married couples filing jointly.³ Many first-time buyers with modest mortgages don’t clear that bar, in which case these items produce no current-year benefit even though they’re technically deductible.

Prorated Property Taxes

The share of real estate taxes prorated to you from closing forward is deductible as part of the state and local tax (SALT) deduction. For 2026, the SALT cap is $40,000 for most filers and $20,000 for married filing separately, with a phase-down for modified adjusted gross income above $500,000.⁴ That cap is the combined ceiling for property taxes, state income taxes, and local taxes together.

Mortgage Points

Points paid to get a mortgage on your principal residence can usually be deducted in full the year you buy, provided the loan secures your main home, paying points is standard practice in your area, and the charge is clearly itemized on your settlement statement.⁵ Points that don’t meet all the conditions, including points on refinances and on second homes, must be spread evenly over the life of the loan.⁶ Either way, points are treated as interest. They never go into basis.

Prepaid mortgage interest covering the days between your closing and the first regular payment is also deductible in the purchase year.

Mortgage Insurance Premiums

The itemized deduction for private mortgage insurance premiums was reinstated for the 2026 tax year onward, subject to income phase-outs. PMI is always a loan cost, so whether or not you can deduct it in a given year, it never gets added to your property’s basis.

Closing Costs With No Tax Benefit

Some settlement charges can’t be capitalized and can’t be deducted. They’re either personal expenses or loan-related costs the IRS simply doesn’t allow a benefit for.

Homeowner’s insurance premiums, treated as a personal expense of using the property.
Escrow deposits set aside for future taxes and insurance, which aren’t an expense until the money is actually spent.
Lender-required appraisal fees.
Credit report fees.
Loan origination fees charged by the lender to process your application.

The IRS is explicit that lender charges for services like appraisals, notary fees, and mortgage note preparation are not deductible as interest and can’t be treated as points.⁷ They’re absorbed as part of the cost of borrowing.

Why the Classification Matters at Sale

When you sell, your taxable gain is the sale price, minus selling expenses, minus your adjusted basis. Adjusted basis is your purchase price, plus the closing costs you capitalized, plus capital improvements over the years, minus any depreciation claimed. Every dollar you correctly put in basis at purchase is a dollar that isn’t taxed as gain later.

For a primary residence, the Section 121 exclusion shields up to $250,000 of gain, or $500,000 for married couples filing jointly, if you owned and lived in the home for at least two of the five years before the sale.⁸ For many homeowners the exclusion swallows the whole gain, and basis feels academic. For long-held homes, high-appreciation markets, and investment property, capitalized closing costs and documented improvements are where real tax savings sit.

A word of caution on the other direction. Overstating basis to shrink a reported gain can trigger a 20% accuracy-related penalty on the underpayment, and if your claimed basis was 200% or more of the correct amount, the penalty doubles to 40%, on top of the tax and interest owed.⁹ Guessing at closing-cost figures years after the fact is not a good idea.

A Note on Rental and Investment Property

The same fees that capitalize into basis for a personal home capitalize into basis for a rental. The difference is timing: instead of waiting until sale to see the benefit, you recover those costs through annual depreciation, over 27.5 years for residential rentals and 39 for commercial buildings.¹⁰¹¹ The capitalize-versus-deduct split for the closing itself doesn’t change.

Records to Keep

Your Closing Disclosure is the single most important document for basis purposes. It itemizes every settlement charge, making it possible years later to identify which fees you capitalized. The IRS expects supporting documentation for basis to be kept for at least three years after you file the return for the year of sale,¹² which in practice means keeping the file for the entire time you own the property plus that three-year window.

Save the Closing Disclosure alongside receipts and invoices for any capital improvements. Digital copies stored in more than one place hold up better than paper across a decade or two of ownership.

1
Internal Revenue Service. Publication 551 (12/2025), Basis of Assets
2
Internal Revenue Service. Publication 551 (12/2025), Basis of Assets – Section: Settlement Costs
3
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
4
Internal Revenue Service. Topic No. 503, Deductible Taxes
5
Internal Revenue Service. Publication 936 (2025), Home Mortgage Interest Deduction – Section: Points
6
Internal Revenue Service. Topic No. 504, Home Mortgage Points
7
Internal Revenue Service. Publication 936 (2025), Home Mortgage Interest Deduction – Section: Amounts Charged for Services
8
Office of the Law Revision Counsel. 26 U.S. Code 121 – Exclusion of Gain From Sale of Principal Residence
9
Office of the Law Revision Counsel. 26 U.S. Code 6662 – Imposition of Accuracy-Related Penalty on Underpayments
10
Internal Revenue Service. Publication 527 (2025), Residential Rental Property
11
Internal Revenue Service. Publication 946 (2025), How To Depreciate Property
12
Internal Revenue Service. Publication 523 (2025), Selling Your Home