A cash-out refinance is not taxable. The IRS treats the money you walk away with at closing as loan proceeds, not income, because you owe every dollar back with interest. You do not report the lump sum on your return, and you owe no federal income tax on it regardless of the amount. The tax question that actually matters comes later: whether you can deduct the interest on the larger mortgage, and that depends almost entirely on what you did with the cash.
Why the Cash Itself Is Not Income
Income, for federal tax purposes, means a gain in wealth you get to keep. A cash-out refinance produces no such gain. You receive money from a lender and take on a matching debt obligation, so your net worth is unchanged the moment the funds hit your account. Because there is no accession to wealth, the proceeds do not appear on your return.
This treatment does not depend on the size of the loan, the type of lender, or how you plan to spend the money. A homeowner pulling out $50,000 to remodel a kitchen and a homeowner pulling out $50,000 for a vacation both receive the same tax-free treatment on the cash itself. The two returns diverge later, at the mortgage-interest line.
How the Interest Deduction Changes After You Refinance
The One Big Beautiful Bill Act made the Tax Cuts and Jobs Act’s mortgage interest rules permanent, so the $750,000 cap on deductible acquisition debt remains in place for 2026 and beyond. For married couples filing separately, the cap is $375,000.1Internal Revenue Service. Publication 936, Home Mortgage Interest Deduction
Interest on your refinanced mortgage is deductible only to the extent the proceeds were used to buy, build, or substantially improve the home that secures the loan.2Internal Revenue Service. Real Estate Taxes, Mortgage Interest, Points, Other Property Expenses 2 Any cash-out portion used for something else generates personal interest, which is not deductible. If you refinance a $300,000 mortgage into a $400,000 loan and use the extra $100,000 to pay off credit cards, you can deduct interest only on the $300,000 that replaced your original acquisition debt.
A grandfathering rule survives for older loans. If your original mortgage was taken out before December 16, 2017, that debt qualifies under the earlier $1 million limit. But any additional borrowing you take on through a cash-out refinance after that date falls under the $750,000 cap.1Internal Revenue Service. Publication 936, Home Mortgage Interest Deduction The same buy-build-or-improve requirement applies to a qualifying second home.
Tracing Mixed-Use Proceeds
Most cash-out refinances get spent on more than one thing. You might put $60,000 toward a new roof and $40,000 toward student loans. The IRS does not let you deduct interest on the whole loan just because part of it went to improvements. You allocate the debt by tracing where each dollar actually went.3eCFR. 26 CFR 1.163-8T – Allocation of Interest Expense Among Expenditures
Tracing follows the use of proceeds, not the collateral. Your home securing the loan does not make the interest deductible if you spent the money on personal expenses, and interest on funds used for a business or investment may be deductible under those categories even when your home is the collateral.1Internal Revenue Service. Publication 936, Home Mortgage Interest Deduction
In practice, that means keeping a paper trail from the day the funds land. If you deposit $100,000 into checking and spend it over several months on contractor invoices and personal purchases, you need to document which dollars went where. Opening a dedicated account for the refinance proceeds makes the tracing exercise simpler and gives you cleaner records if the IRS asks questions later.
What Counts as a Substantial Improvement
The deduction hinges on whether your project qualifies as a substantial improvement rather than a routine repair. The IRS defines an improvement as something that adds value, extends the home’s useful life, or adapts it to a new purpose.4Internal Revenue Service. Tangible Property Regulations – Frequently Asked Questions New roofs, room additions, full kitchen renovations, upgraded HVAC systems, and finished basements typically qualify.
Repairs keep things running without changing the home’s character or value. Patching drywall, fixing a leaky pipe, repainting a bedroom, or replacing a broken window are maintenance, not improvements. Spending $80,000 of refinance proceeds on repairs means the interest on that $80,000 is not deductible even though the money went into the house.
The gray area trips people up. Replacing a few shingles is a repair; replacing the entire roof is an improvement. Swapping one appliance is maintenance; gutting and rebuilding the kitchen is an improvement. When a project grows in scope, the final scope determines the classification. Keep every contractor invoice, building permit, and receipt. The IRS expects documentary evidence such as receipts, canceled checks, and bills to support deductions.5Internal Revenue Service. Burden of Proof Good records do double duty, supporting both your interest deduction on Schedule A and any future basis adjustment when you sell.
Deducting Points and Closing Costs
Points paid on a cash-out refinance follow different rules than points on a purchase mortgage. On a home purchase, you can generally deduct points in full the year you pay them. On a refinance, you spread the deduction evenly over the loan term.1Internal Revenue Service. Publication 936, Home Mortgage Interest Deduction On a 30-year refinance, that is one-thirtieth of the points each year.
One exception is worth knowing. If part of the refinance goes toward substantially improving your home, you can deduct the share of points tied to that improvement in full the year you pay them. The rest still gets spread over the life of the loan.6Internal Revenue Service. Publication 530, Tax Information for Homeowners
If you refinance again or pay off the loan early, you can deduct any remaining unamortized points in the year the mortgage ends. One catch: if you refinance with the same lender, you cannot take that lump-sum deduction. The remaining balance rolls into the new loan’s amortization schedule.6Internal Revenue Service. Publication 530, Tax Information for Homeowners
Other closing costs do not fare as well. Appraisal fees, credit report charges, and loan origination fees that are not classified as points cannot be deducted as interest. Some may be added to your property’s cost basis, but most simply reduce the net cash you walk away with.
How the Money You Spend Affects Cost Basis
Taking cash out does not change your home’s cost basis. Your basis starts at what you originally paid plus certain purchase closing costs like title insurance and transfer taxes. The refinance is a debt transaction, not a sale, so the basis itself sits still.
What changes basis is how you spend the money. Every dollar of refinance proceeds invested in a capital improvement gets added to your basis.7Internal Revenue Service. Publication 551, Basis of Assets A $75,000 kitchen remodel funded with cash-out proceeds raises your basis by $75,000. A $75,000 credit card payoff does nothing.
Basis pays off when you sell. Taxable gain equals sale price minus adjusted basis. Single filers can exclude up to $250,000 of gain, and married couples filing jointly can exclude up to $500,000, as long as they owned and lived in the home for at least two of the five years before the sale.8Internal Revenue Service. Publication 523, Selling Your Home If your gain exceeds the exclusion, a higher basis directly reduces the capital gains tax you owe. Homeowners who reinvested their cash-out proceeds into the property capture a benefit twice: the interest deduction each year they hold the mortgage, and a lower tax bill when they sell.
If the Property Is a Rental
Rental property owners play by different rules. When you cash out an investment property and spend the proceeds on that rental’s expenses or improvements, the interest is generally deductible as a business expense on Schedule E rather than as an itemized deduction on Schedule A.9Internal Revenue Service. Instructions for Schedule E (Form 1040) The $750,000 qualified residence interest cap does not apply because the rental is not your personal residence.
Tracing still governs, though. Interest is allocated by how you actually use the borrowed funds, so proceeds spent on personal expenses do not become deductible just because a rental secured the loan. Your lender should send a Form 1098 by January 31 if you paid $600 or more in interest during the year.9Internal Revenue Service. Instructions for Schedule E (Form 1040)
Whether the Deduction Is Worth Anything to You
None of this matters unless you itemize on Schedule A. For 2026, the standard deduction is $16,100 for single filers and $32,200 for married couples filing jointly.10Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One Big Beautiful Bill The One Big Beautiful Bill Act made the higher standard deduction permanent, with continued annual inflation adjustments.
Add up your mortgage interest, state and local taxes (capped at $40,400 for 2026), charitable contributions, and other itemized deductions. If the total beats the standard deduction, itemize. If it falls short, the standard deduction gives you a bigger break and the mortgage interest deduction goes unused. A homeowner paying $12,000 in mortgage interest, $8,000 in state taxes, and $2,000 in charitable giving reaches $22,000 in itemized deductions, well below the $32,200 joint standard deduction. That homeowner gets no tax benefit from the interest.
A cash-out refinance can shift this calculation because a larger loan balance often means higher annual interest. If the refinance pushes your total interest above the threshold where itemizing makes sense, the deduction becomes worth something it was not before. Run the numbers before assuming it will save you money.