A bathroom remodel is not tax deductible on your personal residence in the year you pay for it. The IRS treats the work as a capital improvement, so instead of reducing this year’s tax bill, the cost adds to your home’s cost basis and lowers your taxable gain when you sell. That default flips in three situations: when the remodel is medically necessary, when the bathroom is in a rental property, and when part of your home is a qualifying home office.
Why the Cost Isn’t Deductible Now
Federal tax law draws a line between repairs and improvements. A repair keeps the home working as it already does. An improvement adds value, extends the property’s life, or adapts it to a new use. Gutting a bathroom and installing new fixtures, plumbing, and flooring is an improvement, and no deduction is allowed for permanent improvements or betterments that increase a property’s value.1Office of the Law Revision Counsel. 26 U.S. Code 263 – Capital Expenditures
The size of the project doesn’t matter. An $8,000 refresh and a $40,000 gut renovation are treated the same way. Neither shows up on Schedule A, and neither reduces your adjusted gross income for the year the work is done.
How the Cost Pays Off When You Sell
Every dollar spent on a qualifying improvement raises your home’s adjusted basis. Basis starts with what you paid for the home plus certain settlement costs, and each improvement layers on top. When you sell, your taxable gain is the sale price minus that adjusted basis.
The IRS lists bathroom additions, plumbing upgrades, and flooring among the improvements that increase basis, along with architect fees, building permits, and contractor payments.2Internal Revenue Service. Publication 523, Selling Your Home Buy a home for $350,000, put $45,000 into bathrooms over the years, and your basis is $395,000. Sell for $650,000 and the gain is $255,000 rather than $300,000.
Most sellers won’t owe capital gains tax at all. If you owned and lived in the home as your principal residence for at least two of the five years before selling, you can exclude up to $250,000 of gain as a single filer or $500,000 married filing jointly.3Office of the Law Revision Counsel. 26 U.S. Code 121 – Exclusion of Gain From Sale of Principal Residence The basis increase matters most when the gain exceeds that exclusion, which happens on high-value homes, homes held for decades, or homes in markets with steep appreciation.
When Medical Necessity Changes the Answer
A bathroom remodel on your personal home can produce an immediate deduction when the work is medically necessary for you, your spouse, or a dependent. The IRS identifies qualifying bathroom-related modifications including support bars, grab bars, railings, and other modifications, alongside widened doorways, entrance ramps, modified hallways, and lifts.4Internal Revenue Service. Publication 502, Medical and Dental Expenses A roll-in shower or a lowered vanity for wheelchair access falls in the same category.
Subtract Any Increase in Home Value
The deductible amount isn’t automatically the full project cost. You subtract any increase in your home’s fair market value that results from the improvement, and the remainder is your medical expense.4Internal Revenue Service. Publication 502, Medical and Dental Expenses Many accessibility features (grab bars, support railings, widened doorways) don’t raise market value at all, so the full cost qualifies. An elevator generally does add value, so only the portion above that increase counts.
The 7.5% AGI Floor and Itemizing
Medical expenses are deductible only to the extent they exceed 7.5% of your adjusted gross income.5Office of the Law Revision Counsel. 26 U.S. Code 213 – Medical, Dental, Etc., Expenses With a $100,000 AGI, you need more than $7,500 in total medical costs for the year before any of it reduces taxable income. Only the amount above the floor counts.
You also have to itemize on Schedule A rather than take the standard deduction, which for many filers means the numbers only work in a year with significant medical bills, mortgage interest, or state and local taxes. A written recommendation from a physician strengthens the claim if the IRS questions whether the work was medical or cosmetic.
When the Bathroom Is in a Rental Property
The rules shift for income-producing real estate. Genuine repairs are fully deductible in the year you pay for them, and larger improvements can be recovered through annual depreciation.
Repairs vs. Improvements
Fixing a running toilet, replacing a broken showerhead, recaulking a tub, or patching a small section of damaged tile keeps the property in its existing condition. Those are repairs, deductible in full on Schedule E in the year the expense is incurred.6Internal Revenue Service. Topic No. 414, Rental Income and Expenses
Rental owners also have a de minimis safe harbor allowing amounts up to $2,500 per invoice or item to be deducted rather than capitalized, even if the work might technically look like an improvement.7Internal Revenue Service. Tangible Property Final Regulations A replacement faucet or vanity light under that amount can be expensed immediately if you make the annual election with your return.
Depreciation for a Full Remodel
A complete bathroom renovation in a rental unit is a capital improvement that must be depreciated. Residential rental property improvements are generally depreciated over 27.5 years on a straight-line basis.8Internal Revenue Service. Depreciation and Recapture The annual deduction reduces rental income dollar for dollar every year the property is in service.
Recapture at Sale
Plan for a catch when you sell. The IRS recaptures the depreciation you claimed (or should have claimed) and taxes it at a maximum rate of 25% as unrecaptured Section 1250 gain. Part of the annual savings gets clawed back at the sale, and that has to be factored into any calculation of the real tax benefit.
When Part of the Home Is a Qualifying Office
If you use part of your home exclusively and regularly as your principal place of business, improvements to that space generate deductions. Exclusively is the operative word. A bathroom used for both personal and business purposes doesn’t qualify.
When a remodel affects only the office space, you depreciate the cost over the applicable recovery period. When it affects the whole home, such as a shared plumbing upgrade, you multiply the cost by your business-use percentage and depreciate that portion.9Internal Revenue Service. Publication 587, Business Use of Your Home An office occupying 15% of the square footage picks up 15% of a house-wide project.
This deduction is only available to self-employed people and independent contractors filing Schedule C. Home office deductions for employees were eliminated after 2017 and have not been reinstated.
The Energy-Efficient Credit Is Gone in 2026
If you’ve heard that installing a high-efficiency water heater or energy-saving fixtures could earn a federal tax credit, that was true through 2025. The Energy Efficient Home Improvement Credit under Section 25C, which offered up to $1,200 per year for qualifying components and up to $2,000 for heat pump water heaters, expired for property placed in service after December 31, 2025.10Office of the Law Revision Counsel. 26 U.S. Code 25C – Energy Efficient Home Improvement Credit As of 2026, no federal credit is available for these components in an existing home. The cost still adds to your basis as a capital improvement.
Records to Keep
The basis increase is only worth something if you can prove it, and the burden is entirely on you when the sale eventually triggers a taxable event. For every bathroom remodel, hold onto the signed contract, invoices, proof of payment, building permits, and any architect or designer proposals. These records need to survive until the statute of limitations closes on the tax year in which you sell the home.11Internal Revenue Service. Topic No. 305, Recordkeeping That means at least three years after filing the return for the year of sale, and six years is safer if income was substantially underreported.
A folder per property, whether physical or digital, is enough to keep the paperwork usable decades later. Thermal-paper receipts fade, so photograph them. If you’re doing the work yourself, save material receipts and log the project dates. The effort is small next to the tax at stake when a home sells with $50,000 or $100,000 of accumulated improvements on the books.