The purchase statement and receipts for improvements may be needed decades after they were created. A seller's record-retention question therefore begins during ownership and continues beyond the closing.

How long the records are needed

Publication 523, Selling Your Home, says that any time you buy real estate you should keep records to document the property's adjusted basis, and to keep those records until three years after the due date of the return for the year in which you sold the home. So the keeping period does not end at closing.

It runs three more years past the filing deadline for the year of the sale, and longer in the cases below.

What the publications actually name

Publication 552, Recordkeeping for Individuals, identifies records used to establish basis or adjusted basis: the purchase price, settlement or closing costs, and improvements. In practical terms, keep the documents that show what was paid and when.

In practice that is the settlement statement from when you bought, the deed, and the contract, invoice and proof of payment for every improvement. The note on which improvements raise your basis covers which of that work actually counts, because not all of it does.

How long: the clock is the period of limitations

The underlying rule is not about houses. The IRS keeps records for as long as the period of limitations on the return is open, and property records stay until that period expires for the year in which you dispose of the property in a taxable disposition. The periods, as the IRS states them:

  • Three years, if none of the cases below apply.
  • Three years from the date you filed the original return, or two years from when you paid the tax, whichever is later, for a refund or credit claim filed after you filed.
  • Six years, if you do not report income you should have reported and the amount left off is more than 25 percent of the gross income shown on the return.
  • Seven years, for a claim for a loss from worthless securities or a bad debt deduction.
  • No limit, if you file a fraudulent return or do not file one at all.

For a house sale, The gain on a long-held home is the number most likely to be large, and the six year window is the one that opens when a large number is left off. Three years is the floor, not the answer.

Why the three years is the wrong way to read it

The clock starts at the sale. The records it asks for were created when you bought and in every year you improved the house since. So the rule, read literally, tells a 1994 buyer to keep a 1994 settlement statement for thirty two years and then three more.

Nobody reads it that way, and that is how basis records get thrown out in a kitchen remodel or a clear-out before a move, fifteen years before they are needed.

The useful version is the opposite shape: the records have no expiry while you own the house, and a short one once you have sold and filed. If you are 50 or 60 and in the house you raised a family in, there is nothing in these publications that lets you clear the box out.

If the house came through an exchange

After a nontaxable exchange, your basis in the new property carries over from the property you gave up plus any money you paid, so the IRS asks you to keep the records for both the old and the new property until the limitation period runs out for the year you dispose of the new one. One sale, two sets of paper. The note on a 1031 exchange and the house you live in covers when that applies to a home at all.

One record somebody else has to keep

At closing you may sign a certification that the sale was of your principal residence and that the gain is excludable. That one is not yours to keep. The Instructions for Form 1099-S put the retention on the person who receives it: they must keep the certification for four years after the year of sale.

Keep your own copy anyway, because four years from now the title company that holds the original is not the office you will call first.

Incomplete improvement records can complicate the calculation of adjusted basis. Review the file before the home goes on the market and ask the tax preparer what can be reconstructed where records are missing.

Whether your gain is excludable, which of your receipts qualify, how long your own return stays open and what to do if the records are already gone belong to your CPA. There are reconstruction routes for lost basis records and they are an accountant's work, not mine.

The notes on whether you have to tell the IRS you sold and on capital gains tax when you sell cover what the records end up feeding, and the sellers page sets out how a listing is prepared.

Sources, all read at source October 10, 2026: IRS Publication 523, Selling Your Home, for use in preparing 2025 returns, catalog number 15044W, the section "What records to keep". IRS Publication 552, Recordkeeping for Individuals, revised January 2011, the home records section and its table of periods of limitations. IRS Tax Topic 305, Recordkeeping, last reviewed October 8, 2026, for property records and the period of limitations. The IRS page "How long should I keep records?", last reviewed June 30, 2026, for the retention list and the nontaxable exchange rule. Instructions for Form 1099-S, revised December 2026, for the four year retention of the principal residence certification.

This note is general. It is not tax advice. How long your own records need to be kept depends on your returns and your situation.