Improvements vs. repairs
The IRS distinguishes between capital improvements and repairs. An improvement adds value, extends useful life, or adapts the property to a new use — replacing the roof, adding a room, installing a new HVAC system, upgrading electrical, or converting a garage to living space. A repair maintains the existing condition — painting, fixing a broken faucet, patching drywall, replacing a broken window. Improvements are capitalized (added to basis and depreciated); repairs are currently deductible operating expenses.
How improvements reduce your taxable gain
When you sell, your taxable gain is the amount realized minus your adjusted basis. Every dollar of capital improvement you capitalized increases your basis and decreases your gain by the same dollar. A $25,000 roof replacement tracked and added to basis saves you $25,000 × your capital gains rate in tax when you sell — potentially $3,750 to $5,000 in saved tax, depending on your bracket.
Keep all receipts and invoices for improvements. The IRS can question basis claims at audit; well-organized records covering the full ownership period make the deduction bulletproof.
The HVAC, roof, and appliance question
Practical examples: a complete roof replacement is a capital improvement (adds life, not a repair); fixing a few shingles after storm damage is a repair. Replacing the entire HVAC system with a new, comparable unit is generally an improvement; fixing a broken fan motor in the existing system is a repair. Replacing a single worn-out appliance is a borderline call — in practice, many landlords capitalize and depreciate appliances as 5-year property to take advantage of accelerated depreciation and bonus, rather than expensing them.
Frequently asked questions
Do home repairs increase my rental property basis?
No. Routine repairs maintain existing condition and are deductible expenses, not basis additions. Only capital improvements that add value, extend useful life, or adapt the property to a new use increase your basis.
How much does a capital improvement reduce my capital gains tax?
Every dollar added to your basis reduces your taxable gain by one dollar. The tax savings equal that dollar times your capital gains rate — roughly $0.15 to $0.20 for every $1 of improvement for most investors.
Should I capitalize or expense appliance replacements?
Capitalizing as 5-year personal property lets you take bonus depreciation in year one. Expensing as a repair gives an immediate ordinary deduction. The better option depends on whether you have passive income to absorb the deduction and your marginal tax rate.
Sources
Educational information and estimates only. Not tax advice. Tax rules change and vary by situation; consult a qualified tax professional before acting.