The short answer

What it reportsGross proceeds from the sale or exchange of real estate and certain royalty payments.
Amounts to reportGenerally, $600 or more
To the recipientFebruary 15
To the IRS, on paperFebruary 28
To the IRS, electronicallyMarch 31

If one arrives

Gross proceeds, not gain. The exclusion on a main home is claimed on your return; the form does not apply it for you.

The form is how a payer tells the IRS what it paid. Its absence is not permission — income you received is reportable whether or not a form covers it, and a threshold decides only who must file, never what you owe.

Who sends it

The person who closed the sale files it, not the buyer. The instructions: "Generally, the person responsible for closing the transaction ... is required to file Form 1099-S," which is usually the settlement agent named on the closing statement. It reports sales and exchanges of land, buildings, condominium units, stock in a cooperative housing corporation and standing timber.

A sale is reportable "even if the transaction is not currently taxable." The form is how the IRS hears about the sale. Whether you owe tax on it is decided on your return.

Gross proceeds, not gain

Box 2a is "generally the sales price." It includes cash, notes, and any debt of yours the buyer takes over, and the settlement agent must not take off your selling costs. So the figure on the form is larger than what reached you, and far larger than any gain. The gain is worked out on your return: the price, less your basis in the property, less the costs of selling it.

The main home exception

A sale of your main home is not reported at all when all of these are true:

  • the price is $250,000 or less, or $500,000 if the seller is married;
  • the seller gives a written certification, signed under penalties of perjury, that the home is a principal residence;
  • the certification also states that the full gain is excludable under section 121, with the other assurances the instructions require.

When a form is issued anyway, the exclusion is still yours to claim on the return. The form does not apply it for you.

The boxes

Box What it holds
1 Date of closing
2a Total gross proceeds: the total of 2b and 2c
2b Cash gross proceeds
2c Digital asset gross proceeds (from 2026)
3 Address or legal description of the property
4 The buyer's part of real estate tax you paid in advance
6 Checked when you received property or services as part of the price
7 Checked when the seller is a foreign person

Not every box is covered here.

Where it goes on your return

Where the sale goes depends on what the property was:

Property Where the sale goes
Your main home Form 8949 and Schedule D, with the exclusion claimed there
Land or a second home held for personal use or investment Form 8949 and Schedule D
A rental property or other real estate used in a business Form 4797

A loss on property held for personal use is not deductible, but when a 1099-S was issued the sale still has to be reported. See Schedule E for the rental years before the sale.

Common questions

Box 2a shows the full sale price. Do I owe tax on all of it?
No. Box 2a is gross proceeds, and the settlement agent is told: "Do not reduce gross proceeds by any expenses paid by the transferor, such as sales commissions, deed preparation, advertising, and legal expense." Your gain is the price less your basis and those selling expenses.
I sold my home and did not get a 1099-S. Is that normal?
It can be. A sale of a main home for $250,000 or less, or $500,000 if the seller is married, is not reportable when the seller certifies in writing that it is a principal residence and that the full gain is excludable. No form does not mean nothing to report if the gain is not fully excludable.
I got a 1099-S for my home but made a loss. Do I still report it?
Yes. The Schedule D instructions: if you had a loss on real estate held for personal use "for which you received a Form 1099-S, you must report the transaction on Form 8949 even though the loss isn't deductible."
What is box 4?
The part of the real estate tax you paid in advance that is allocable to the buyer, for the months of the tax year after the sale.
I was paid partly in crypto for the property. Is that on the form?
From 2026, yes. "Beginning in tax year 2026, digital assets will be reported on Form 1099-S when used in the sale or exchange of real estate." Box 2c shows the digital asset part of the proceeds.

This page is for educational purposes only and does not constitute tax, legal, or financial advice. It covers United States federal reporting. Consult a qualified tax professional about your situation.

Official sources