Is a new roof tax deductible when you sell your home?

Short answer: for a personal residence, a new roof is not tax-deductible— you can't write it off the year you install it. But it's not a dead loss, either. A new roof is a capital improvement, which means it gets added to your cost basis and reduces your taxable gain when you sell.

Deduction vs. basis — the distinction that matters

People often hope home improvements work like business expenses you deduct now. For your own home, they don't. Instead, a qualifying improvement raises the “cost” the IRS credits you with when calculating your gain at sale. A new roof clearly qualifies under IRS Publication 523 — it's listed among exterior improvements that increase basis.

Roof repair vs. roof replacement

The distinction between improvements and repairs applies here too. Patching a leak is a repair and doesn't add to basis on its own. A full roof replacement is an improvement and does. If the repair is part of a larger restoration project, it can be included in that project's cost.

Two exceptions worth knowing

• Home office or rental use. If you use part of your home for business or rent it out, a portion of the roof cost may be depreciated — different rules apply, and depreciation is recaptured at sale.
• Energy-efficient roofing. Certain energy-efficient improvements have qualified for federal tax credits. If you claim a credit, remember it reduces your basis by the credit amount.

What to keep

Hang on to the contractor's invoice, the amount, and the date. When you sell — possibly decades from now — that's what substantiates the addition to your basis if the IRS asks. Logging it the day the job is done, while the paperwork is fresh, beats hunting for it later. You can start a free record in a couple of minutes.