A repair keeps the property in its ordinary operating condition and is deducted in the year paid; an improvement changes the property and is capitalised and depreciated. The IRS tangible property regulations draw the line with three tests: a cost is an improvement if it is “a betterment to the unit,” it “restores the unit,” or it adapts “the unit to a new or different use” (IRS). Three safe harbors let small landlords expense more without the analysis: the de minimis safe harbor ($2,500 per invoice or item without an applicable financial statement), the routine maintenance safe harbor (recurring activities expected more than once in ten years for a building), and the safe harbor for small taxpayers (buildings with an unadjusted basis of $1 million or less, where the year’s repairs, maintenance and improvements do not exceed the lesser of 2% of the basis or $10,000). Publication 527 tells landlords to “separate the costs of repairs and improvements, and keep accurate records.”
Applying the tests
| Work | Classification | Why |
|---|---|---|
| Patch and paint one wall after a tenant’s damage | Repair | Keeps the unit in operating condition |
| Replace a broken window pane | Repair | Part, not the system |
| Replace the entire roof | Improvement (restoration) | Replaces a major component |
| Replace a failed compressor in an HVAC system | Generally repair, unless a substantial part of the system is replaced | Facts and circumstances; the unit of property is the HVAC system |
| Replace the whole HVAC system | Improvement (restoration) | Major component of a building system |
| Add a bathroom | Improvement (betterment) | Enlarges or adds capacity |
| Convert a garage to a bedroom | Improvement (adaptation) | New or different use |
| New dishwasher, $700 | De minimis safe harbor election | ≤ $2,500 per item |
| Annual HVAC servicing, gutter cleaning | Routine maintenance safe harbor | Recurring; expected more than once in 10 years |
The records
- Have the contractor describe the work in the invoice in plain terms — what was replaced, how much of the system.
- Split mixed invoices at payment: the repair portion to repairs, the improvement portion to the basis file with the placed-in-service date.
- Make the de minimis election on the timely filed return each year you use it; the IRS page describes the statement to attach.
- Test the small-taxpayer safe harbor at year end against the building’s unadjusted basis — the basis file has the figure.
Why it matters twice
An improvement expensed as a repair overstates this year’s deduction and understates the basis you will recover on sale; a repair capitalised as an improvement delays a deduction for 27.5 years. Either error is found in the invoice description — which is why the work order matters.
Frequently asked questions
What makes a cost an improvement for a rental?
It is a betterment, a restoration or an adaptation of the unit of property; otherwise it is a repair deductible in the year paid (IRS tangible property regulations).
What is the de minimis safe harbor amount?
$2,500 per invoice or item for a taxpayer without an applicable financial statement ($5,000 with one), by annual election (IRS).
What is the safe harbor for small taxpayers?
For buildings with an unadjusted basis of $1 million or less, if the year’s total for repairs, maintenance and improvements does not exceed the lesser of 2% of that basis or $10,000, the amounts may be deducted (IRS).
Sources
Rules change and the right answer can depend on the home, the city, the lease and the timing. These are the official pages this guide relies on; check them before signing, charging a fee, sending a notice or making a legal decision.
- IRS — Tangible property final regulations (de minimis, small taxpayer and routine maintenance safe harbors) ↗
- IRS Publication 527 (2025) — Residential Rental Property ↗
- IRS — Tips on rental real estate income, deductions and recordkeeping ↗
General information for U.S. landlords, with a Texas focus. This guide is not legal, tax or accounting advice. Consult a qualified professional for your situation. Written by the rentalfreelease.com Editorial Team; last reviewed September 19, 2026.