Which home-improvement records should you keep—and for how long?

Keep records that prove what the property cost, what permanent improvements were made, who performed the work, whether it was permitted, what was paid, and when it was completed. Those records can matter for tax basis, a future sale, insurance claims, warranties, maintenance, financing, and disputes.

IRS guidance generally says to keep records supporting your basis for as long as you own the property, and then keep the relevant sale records for the applicable limitations period. Publication 523 says this is generally until three years after the due date of the return for the year of sale. Different facts can require longer retention, so confirm tax-specific timing with a qualified adviser.

The permanent property file

Keep these for the ownership period:

• closing disclosure, settlement statement, deed, and purchase documents;
• title, survey, appraisal, and documented acquisition costs;
• inherited or gifted-property basis records;
• descriptions, contracts, invoices, and proof of payment for capital improvements;
• permits, approved plans, inspection results, and certificates of occupancy;
• insurance claims, adjuster estimates, settlements, and restoration records;
• energy-credit or rebate documents;
• depreciation and business/rental-use records when applicable.

An invoice alone may not prove payment. Keep the corresponding canceled check, card record, financing statement, or receipt.

Improvement or repair?

For federal tax purposes, an improvement generally adds value, prolongs useful life, or adapts the property to a new use; ordinary repairs generally keep the home in efficient operating condition. The distinction is fact-specific.

Do not relabel work for tax purposes. Keep the actual itemized scope so a tax professional can classify it. A bundled “remodel—$40,000” invoice is much less useful than records separating cabinets, electrical changes, paint, repaired damage, and new permanent work.

Contractor and warranty records

For every project, retain:

• bids and the signed contract;
• license, registration, and insurance evidence;
• product names, colors, model and serial numbers;
• manufacturer instructions and warranties;
• approved change orders;
• milestone evidence and invoices;
• lien waivers or releases when applicable;
• final photos and closeout documents.

These records make a later warranty request or buyer question much easier to resolve.

Insurance and disaster records

Preserve before-and-after photos, inventories, claim numbers, adjuster communications, temporary-repair receipts, and the final restoration scope. Do not discard damaged property until the insurer says it is no longer needed as evidence.

Store copies away from the home. A fire, flood, theft, or device failure should not destroy the only record.

A workable digital naming system

Use one folder per property and one folder per project:

2026-07_Kitchen-remodel/01-contract, 02-permits, 03-invoices, 04-changes, 05-inspections, 06-warranties, 07-photos.

Name files with the date, vendor, and purpose. Keep the original document; avoid relying only on screenshots. Back up the archive and restrict sensitive financial or identity documents.

Before selling

Reconcile the basis file with a qualified tax professional. Separate personal, rental, and business-use periods; document insurance reimbursements, energy incentives, depreciation, and prior casualty treatment. Provide the buyer only the appropriate transferable permits, warranties, manuals, and project history—not private tax or payment data.

This article is recordkeeping information, not individualized tax or legal advice.

Where Completa fits

Completa can keep scopes, contractor review, milestones, changes, and project evidence together as work happens. Export and retain the records required for taxes, insurance, permits, warranties, and your own permanent property file.