Are Home Improvements for Medical Reasons Tax Deductible?

Home improvements made for medical reasons are tax deductible, but with meaningful limits. The IRS lets you count medically necessary modifications as medical expenses on your federal return, and if the improvement raises your home’s fair market value, only the portion of the cost above that value increase qualifies. The total also has to clear the 7.5% adjusted gross income floor that applies to all medical expenses, and you have to itemize to claim it.¹

How the Deduction Is Calculated

The IRS splits medical home improvements into two groups: those that add value to your property and those that don’t. That split controls how much you can deduct.

For an improvement that adds value, you subtract the increase in your home’s fair market value from what you paid. Whatever is left is your deductible medical expense. If the project costs less than or equal to the value it adds, there is no deduction.¹

An example makes it concrete. Suppose you install a residential elevator for a mobility impairment at a cost of $35,000, and an appraisal shows the elevator raised your home’s value by $10,000. Your deductible medical expense is $25,000. If the elevator had raised the value by $35,000 or more, nothing would be deductible.

The deduction is also limited to reasonable costs for the medical need. Upgrading to premium finishes or architectural flourishes beyond what the condition requires won’t increase what you can deduct. If standard commercial tile would have done the job but you chose expensive imported tile, that excess is not deductible.¹

Modifications the IRS Treats as Fully Deductible

Many accessibility modifications don’t add resale value, and the IRS publishes a list of improvements that are generally treated as fully deductible for that reason. You skip the value-increase calculation and deduct the whole cost. The list includes, but isn’t limited to:¹

Entrance and exit ramps for wheelchair or walker access
Widening doorways at entrances, exits, and interior passages
Widening or otherwise modifying hallways
Installing railings, support bars, or other bathroom modifications
Adding grab bars and handrails elsewhere in the home
Lowering or modifying kitchen cabinets and equipment
Moving or modifying electrical outlets and fixtures
Installing porch lifts and other lifts (but generally not elevators)
Modifying fire alarms, smoke detectors, and warning systems
Modifying stairways
Replacing hardware such as knobs with lever handles
Grading the ground to provide access to the home
Modifying areas in front of entrance and exit doorways

Elevators are conspicuously absent. The IRS notes that elevators generally do add value, so an elevator installation runs through the fair market value calculation.¹

Larger Projects That Usually Add Value

Some medically necessary projects are large enough that they clearly add value. Elevators, therapeutic swimming pools, and structural additions fall here. They are still deductible, but only for the cost that exceeds the added value.

A pool prescribed by a physician for physical therapy is the classic example. If your doctor recommends hydrotherapy and a $50,000 pool raises your home’s value by $30,000, the deductible portion is $20,000. Expect the IRS to look closely at a pool deduction, so strong medical documentation tying the pool to a specific treatment need matters.

The same logic covers room additions and other structural work. The bigger the project, the more likely it changes the property’s value, and the more the before-and-after valuations matter.

Operation and Maintenance Costs

The ongoing costs to run and maintain a medically necessary improvement are fully deductible as medical expenses, with no fair market value offset. That rule applies even if only part of the original installation qualified, or none of it did because the improvement added more value than it cost.¹

Electricity to run a medical elevator, chemicals and heating for a therapeutic pool, replacement filters for a whole-house air purification system prescribed for severe asthma — these recurring costs are deductible each year as long as the primary reason for the expense is medical care. Maintenance contracts and repair costs for the equipment also qualify.

The 7.5% AGI Floor and the Itemizing Test

Two financial hurdles stand between the calculation and any actual tax savings.

First, all medical expenses, including home improvements, are subject to a floor of 7.5% of your adjusted gross income. Only the amount above that floor is deductible.¹ With an AGI of $100,000, the first $7,500 in medical expenses drops out. A $12,000 total yields only a $4,500 deduction. A large modification can push you well past this floor, but routine medical bills alone usually don’t.

Second, you can only claim the deduction if you itemize on Schedule A instead of taking the standard deduction.² For 2026, the standard deduction is $16,100 for single filers, $32,200 for married couples filing jointly, and $24,150 for heads of household.³ Itemizing pays off only when your medical expenses (after the floor) combined with state and local taxes, mortgage interest, and charitable contributions clear that number. Run the math before assuming the modification will actually reduce your tax bill.

Documentation to Keep

The IRS won’t take your word for medical necessity or for what the work cost. The burden of proof falls on you at every step.

Get a written recommendation from your physician or licensed medical practitioner before the work begins. A vague note that you have a condition isn’t enough. The recommendation should identify the specific medical condition and explain why the particular modification is needed. “Patient requires a wheelchair ramp due to permanent lower-limb paralysis” is useful; “patient has mobility issues” is not.

Keep detailed invoices, receipts, and proof of payment for materials and labor. If you do the work yourself, only the cost of materials qualifies; your own labor has no deductible value.¹ When a contractor handles a medical modification alongside unrelated renovation work, the invoices need to separate the two projects. Blended invoices invite problems during an audit.

For any improvement that might raise your home’s value, establish the fair market value before and after the work. Publication 502 doesn’t specifically require a professional appraisal, but an appraisal from a qualified independent appraiser is the most defensible evidence if the IRS questions your numbers. Without credible valuation evidence, the agency can disallow the deduction on the ground that you haven’t shown how much of the cost exceeded the value increase.

Hold onto the doctor’s recommendation, invoices, payment records, and appraisals for at least three years from the date you file the return claiming the deduction.⁴ The valuation and cost documents are worth keeping longer because the nondeductible portion affects your home’s cost basis when you sell.

When the Expense Counts

You claim the deduction in the tax year you actually pay for the improvement. Mail a check in December 2025 and the deduction lands on your 2025 return, even if the contractor doesn’t finish the job until January 2026.¹

Credit card charges follow a rule that favors the taxpayer: the expense counts in the year you charge it, not the year you pay off the balance.¹ Charge a $20,000 modification in December 2026 and pay the card down in March 2027, and the full $20,000 is a 2026 medical expense. That timing rule can help when you’re trying to bunch medical expenses into a single year to clear the 7.5% AGI floor.

Whose Improvements Qualify

You can deduct medically necessary modifications made for yourself, your spouse, or your dependents.¹ The IRS list of improvements presumed not to add value explicitly covers modifications for a disabled condition of your spouse or a dependent who lives with you. A parent modifying a home for a child with a physical disability, or an adult child modifying a home for an aging parent who qualifies as a dependent, uses the same rules.

Effect on Your Home’s Cost Basis

The portion of a medical improvement that raises your property’s value, the part you can’t deduct as a medical expense, gets added to your home’s cost basis. A higher basis reduces your taxable gain when you eventually sell.⁵ So the nondeductible portion isn’t lost; it just produces a tax benefit at a different point in time. That’s another reason to hold onto the appraisals and cost records well past the three-year minimum.

A Narrow Rule for Lead-Based Paint Removal

The IRS specifically allows a deduction for removing lead-based paint from surfaces in your home when a child has had or currently has lead poisoning. The paint must be on surfaces in poor repair (peeling or cracking) or within the child’s reach. Repainting the scraped area is not a medical expense. Covering the area with wallboard or paneling instead of removing the paint is treated as a capital expense that runs through the fair market value calculation.¹

1
Internal Revenue Service. Publication 502 (2025), Medical and Dental Expenses
2
Internal Revenue Service. Instructions for Schedule A (Form 1040)
3
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
4
Internal Revenue Service. How Long Should I Keep Records
5
Internal Revenue Service. Publication 551 (12/2025), Basis of Assets