Topic 04 · 6 min read
Repairs, Improvements, and Adjusted Basis
Deduct it now or add it to the building — the rules decide, not you.
Money spent on a property goes one of two ways. A repair keeps things working and is deducted the year you pay it. An improvement makes the property better, restores it, or adapts it to a new use, and is added to basis and depreciated over years. Basis plus improvements minus depreciation claimed is your adjusted basis.
What to know
- Better, restored, or adapted
- That three-part test is the working standard. Patching a roof is a repair; replacing the whole roof is an improvement.
- Small-dollar relief exists
- Safe harbors let owners expense modest purchases and certain routine maintenance outright instead of capitalizing them.
- Adjusted basis moves both ways
- Improvements push it up; every year of depreciation pulls it down. That running figure is what the sale is measured against.
- Timing has real value
- A deduction today is worth more than the same amount spread over 27.5 years, which is why the classification matters so much.
The tax benefit
Correct classification pulls legitimate repair deductions into the current year while keeping improvements in basis, where they reduce the gain at sale.
Worked example
Two invoices, two answers
A $900 furnace repair is deducted this year. A $14,000 kitchen renovation is added to basis and written off over time, raising adjusted basis by $14,000.
Watch out for
- Calling an improvement a repair is one of the most commonly adjusted items on audit.
- Work done during a renovation project is usually judged as a whole, not invoice by invoice.
- Safe harbors often require an election filed with the return.
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