How to Keep Track of Home Renovation Costs (the IRS Will Eventually Ask)
The kitchen remodel receipt you toss this year could cost you thousands the year you sell. Renovation records aren't paperwork nostalgia; they're money with a decades-long delay. Here's what to keep, why, and a system that will still exist when you finally need it.
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Why renovation receipts are money
Here's the trap built into home renovation records: the receipt matters most 10, 20, or 30 years after the project, at the exact moment the shoebox is three moves gone and the contractor's email bounces.
When you sell your primary residence, the IRS lets you exclude a big slice of profit from tax: $250,000 for single filers, $500,000 for married filing jointly. Anything above that is a taxable capital gain. In 2006 those caps felt unreachable. After the last two decades of home price appreciation, long-tenure owners in hot markets exceed them routinely.
Every documented improvement dollar reduces that taxable gain, dollar for dollar. A household with $75,000 in documented projects and a gain above the exclusion saves roughly $11,250 at the 15% capital gains rate. The undocumented household with the identical kitchen pays it. Same renovation, same house; the only difference is who kept the invoices.
the receipt only counts if you still have it in 2046
kept stores each renovation project with its receipts, costs, and photos, backed up in the cloud instead of a shoebox. Free, on any phone.
[ try kept free ]Are renovations tax deductible when you sell?
Not the way people hope, and better than people fear. You can't deduct a kitchen remodel on this year's return. Capital improvements instead work at the finish line: each one adds to your cost basis, and your taxable gain at sale is the sale price minus that basis. Spend $45,000 on the kitchen and, decades later, $45,000 of your profit escapes tax if it would have exceeded the exclusion.
A few genuine current-year exceptions exist, all narrow: energy upgrades (solar, heat pumps, insulation, efficient windows) can earn federal tax credits in the year installed; medically required modifications can count toward medical deductions; and home-office or rental-portion improvements follow their own depreciation rules. For everything else, the tax payoff waits for the sale, which is exactly why the records have to survive that long.
Repair vs. capital improvement
The IRS test: an improvement adds value, prolongs the home's useful life, or adapts it to new uses. A repair keeps the house in ordinary working condition. Only improvements add to basis.
| Capital improvement (counts) | Repair (doesn't count) |
|---|---|
| Kitchen or bath remodel | Fixing a leaking faucet |
| New roof | Patching a section of shingles |
| Room addition, finished basement, deck | Repainting a bedroom |
| New HVAC system, water heater, ductwork | Replacing a furnace igniter |
| Replacement windows, new siding | Re-glazing one broken pane |
| Built-in appliances, new flooring | Refinishing a scratched spot |
The useful wrinkle: repairs performed as part of a larger remodel ride along with the improvement. Repainting alone is a repair; repainting as the final step of a gut renovation is part of a capital improvement. That makes whole-project invoices more valuable than piecemeal ones, so when a contractor offers to break a job into little tickets, ask for one contract covering the scope instead.
When you're unsure which side a project lands on, log it anyway with its paperwork. Your accountant at sale time can sort categories in minutes if the records exist, and can do nothing if they don't. The general habit of keeping track of home improvements covers the memory side; this post's system covers the money side.
How improvements raise your cost basis
Basis starts at your purchase price plus certain closing costs. Each capital improvement adds its full cost, materials and labor both. The math at sale:
Worked example
- Bought the house: $400,000
- Kitchen remodel (2028): +$45,000
- New roof (2031): +$18,000
- Composite deck (2033): +$12,000
- Adjusted basis: $475,000
- Sell (2046) for $780,000: gain is $305,000 against the improved basis, not $380,000 against the purchase price
- For a single filer with a $250,000 exclusion: $55,000 taxable instead of $130,000
Notes that trip people up: your own labor never counts, only what you paid others and paid for materials. Projects later ripped out stop counting (the 2028 kitchen you demolished in 2040 leaves the basis when its replacement enters). And DIY projects count their materials, so the receipts from fourteen hardware store runs are worth logging the week they happen, not reconstructing later.
fourteen hardware store receipts per project, and every one counts
Snap each receipt into the project's entry in kept as you go. At sale time, the whole renovation history exports in one place.
[ try kept free ]What the IRS wants to see
IRS Publication 523 (Selling Your Home) is the governing document, and its record-keeping instruction is blunt: keep proof of improvements for as long as you own the home, plus at least three years after filing the return that reports the sale. The proof that holds up:
- Contractor contracts and final invoices, showing scope, dates, and amounts
- Material receipts for DIY and owner-supplied purchases
- Proof of payment: canceled checks, card statements, bank transfers
- Permits and inspection sign-offs, which also independently date the project
- Before and after photos, the cheapest evidence that work actually happened
Keep the contractor's name and contact with each project too. Questions about a 2031 invoice are much easier with a reachable human attached, which is one more reason to maintain a contractor contact list alongside the receipts. The same file also does double duty: it's exactly what a home insurance claim asks for when a renovated kitchen is damaged, and what an appraiser wants when you contest a valuation.
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A tracking system that survives decades
The shoebox fails on a 20-year timescale. Thermal receipts fade to blank in a few years, paper doesn't survive moves, and the folder on a laptop dies with the laptop. The system has to be cloud-backed, phone-first, and organized by project, because that's how your accountant will ask for it.
In kept, a renovation becomes its own space, with an entry per project or per major purchase: the tile, the vanity, the contractor's invoice, each with cost, date, and receipt photos.
the renovation as a running list: every purchase, every cost, one total.
Adding as you go is the whole trick, and it's fast: point the camera at a receipt or product and kept's AI capture pulls the details in, no typing in a parking lot.
snap it at the register, filed before you reach the car.
Three habits complete the system:
- One entry per project, opened the day it starts. "Kitchen remodel 2026" collects every invoice and receipt from day one, so nothing needs sorting later.
- Photograph paper the day you get it. The thermal receipt fades; the photo doesn't. Keep the paper originals in one fireproof box as backup, unsorted is fine, since the searchable copy lives in the app.
- Log the boring metadata. Contractor name and phone, permit numbers, paint colors and materials. Future-you, filing taxes or matching the trim, will use all of it. It's the same principle as the rest of your home binder: information captured once, findable forever.
Frequently asked questions
Are home renovations or improvements tax deductible when you sell a house?
Not deductible in the year you spend the money, but capital improvements reduce your taxable gain when you sell. Each qualifying project adds to your home's cost basis, and gain is sale price minus that basis. If your profit exceeds the exclusion ($250,000 single, $500,000 married filing jointly), every documented improvement dollar directly shrinks the taxable amount. Separate rules give current-year credits for certain energy upgrades like solar and heat pumps.
What is the difference between a home repair and a capital improvement for taxes?
An improvement adds value to the home, extends its life, or adapts it to a new use: a kitchen remodel, a new roof, an addition, a new HVAC system. A repair just keeps the house in ordinary working condition: fixing a leak, repainting a room, replacing a broken windowpane. Improvements add to cost basis; repairs don't. One wrinkle: repairs done as part of a larger remodel count as part of that improvement, so a whole-project invoice can capture work that alone would be a repair.
How do home improvements increase your home's cost basis?
Your basis starts at what you paid for the home plus certain closing costs. Each capital improvement adds its full cost, materials and labor, to that number. Buy at $400,000, then add a $45,000 kitchen, an $18,000 roof, and a $12,000 deck, and your basis becomes $475,000. When you sell, gain is computed against $475,000 instead of $400,000, so those three projects shield $75,000 of profit from tax, if you can document them.
What documents or receipts does the IRS require for home improvements?
Records that prove what was done, what it cost, and when: contractor invoices and contracts, receipts for materials, canceled checks or card statements, and permits. Before-and-after photos strengthen the file. IRS Publication 523 says to keep these records for as long as you own the home, plus at least three years after you file the return reporting the sale. That can mean holding a receipt for decades, which is why paper-only systems fail.
How much profit can you make on a home sale before being taxed?
If the home was your primary residence for at least two of the last five years, you can exclude $250,000 of gain if single and $500,000 if married filing jointly. Profit above that is taxed as a capital gain. Long-tenure owners in appreciating markets blow through those caps more often than people expect, and at that point every documented improvement dollar reduces the taxable slice.