Quick answer: A repair keeps a rental property in ordinary working condition and is generally deductible in the year you pay for it. An improvement betters the property, restores it, or adapts it to a new use, and must be capitalized and depreciated over time. The IRS tangible property regulations set out these tests, and several safe harbor elections can let landlords deduct smaller costs immediately.
Every landlord faces this question. You replace a broken window, patch a section of roof, or put new flooring in one bedroom, and you need to know whether it comes off this year's income or goes on the depreciation schedule for decades. Having owned rentals ourselves, we can tell you that the answer is not always intuitive, but it does follow a logic. Getting it right can make a meaningful difference in your tax bill and in how well your return holds up if questioned.
Repairs versus improvements in plain terms
The IRS draws the line based on what the work does to the property.
Repairs keep the property in the condition it was already in. Fixing a leaky faucet, patching drywall, replacing a few broken shingles, repainting between tenants, or fixing a furnace that stopped working are typical repairs.
Improvements make the property better than it was, return it to like-new condition after it deteriorated, or change how it is used. A full roof replacement, a new heating system, adding a bathroom, or converting a basement into a living unit are typical improvements.
Repairs are deducted on Schedule E for the year you pay them. Improvements are added to the property's basis and depreciated, usually over the same long recovery period as the building for residential rentals.
The three tests: betterment, restoration, adaptation
Under the tangible property regulations, an expense is an improvement if it does any of the following:
- Betterment. It fixes a defect that existed when you bought the property, physically enlarges or expands it, or materially increases its capacity, efficiency, strength, or quality. Replacing builder-grade fixtures with substantially higher-quality ones can be a betterment.
- Restoration. It replaces a major component or substantial structural part, rebuilds the property to like-new condition after it fell into disrepair, or returns it to working order after damage for which you took a casualty loss or claimed a basis adjustment.
- Adaptation. It changes the property to a use inconsistent with its use when you placed it in service, such as converting a residential unit to office space.
If none of these apply, the cost is generally a deductible repair.
Why "unit of property" matters
The tests are applied to the right unit of property. For a building, the IRS looks separately at the building structure and at each major building system, including heating and air conditioning, plumbing, electrical, elevators, security, and fire protection.
This matters because it changes the size of the comparison. Replacing the entire furnace is significant relative to the heating system, so it is usually an improvement. Replacing a blower motor is minor relative to that same system, so it is usually a repair. Likewise, replacing a whole roof is generally a restoration of a major component of the building structure, while patching part of it is generally a repair.
Safe harbors that simplify the decision
The regulations include several elections that let many landlords deduct costs that might otherwise be capitalized:
- De minimis safe harbor. You can elect to deduct items costing up to a set amount per invoice or item, rather than capitalizing them. Taxpayers without audited financial statements have a lower limit than those with them. The election is made each year with a statement attached to a timely filed return.
- Routine maintenance safe harbor. Recurring work you reasonably expect to perform more than once during a set period (for buildings, more than once in ten years) to keep property in ordinary operating condition can generally be deducted.
- Safe harbor for small taxpayers. Owners of buildings with a relatively low unadjusted basis, who also meet a gross receipts test, can elect to deduct total annual repairs, maintenance, and improvements on that building up to a limit tied to the building's basis.
The dollar limits and eligibility details are spelled out in the regulations and in IRS guidance, including the IRS's tangible property regulations FAQ. Check the current figures and requirements before relying on them, and remember that some of these elections must be made annually.
Practical examples for landlords
Say you own a two-family in Syracuse's Eastwood neighborhood. Here is how common projects usually sort out, though the specific facts always matter:
- Repainting a unit between tenants: generally a repair.
- Replacing a broken refrigerator: an appliance, depreciated over a shorter life than the building, unless it falls under the de minimis election.
- Replacing the entire roof after decades of Central New York winters: generally an improvement, as a restoration of a major component.
- Repairing storm damage to a section of siding: generally a repair, unless the work rises to restoring a major component.
- Replacing all the windows with energy-efficient units: often an improvement, especially if it materially increases efficiency or replaces a major component.
- Remodeling a kitchen: almost always an improvement.
Good documentation helps. Keep invoices that describe exactly what was done and why, and before-and-after photos for larger jobs. A vague invoice that says "repairs, $14,000" invites questions.
Getting it right on your return
Classifying costs correctly every year saves time and money later, including when you sell. Improvements increase your basis, and depreciation you were entitled to affects your gain on sale. Our article on rental property depreciation and what happens when you sell explains how these pieces connect.
If you have a large project coming up, it is worth talking through the classification before the work begins. Our real estate and rental accounting services include exactly that kind of planning.
Frequently asked questions
Is a new roof on a rental property a repair or an improvement?
A full roof replacement is generally an improvement and must be depreciated, because it restores a major component of the building structure. Patching or replacing a small section of a roof is generally a repair you can deduct in the year paid.
What is the de minimis safe harbor for rental property?
It is an annual election that lets you deduct lower-cost items, up to a per-item or per-invoice limit, instead of capitalizing them. You make it by attaching a statement to a timely filed return, and you must apply it consistently to all qualifying items that year.
Can I deduct the cost of fixing up a rental before the first tenant moves in?
Work done to get a newly acquired property ready to rent is often treated as part of its cost, especially if it fixes problems that existed at purchase. These costs are usually capitalized and depreciated rather than deducted immediately.
What happens if I deducted something that should have been capitalized?
The deduction could be disallowed on examination. If you discover the error yourself, it may be corrected through an amended return or an accounting method change, depending on the situation. It is worth reviewing with a tax professional before acting.
This article is general information for 2026, not tax or legal advice for your situation. Tax rules and figures change; confirm current amounts with the IRS, New York State, or your accountant before acting.
Related service: Real Estate & Rental Property Accounting