Do You Always Get a 1099-S When You Sell Your House?

By Kevin Luu, Co-Founder and Chief Learning Officer. Reviewed on 2026-09-30.

No, you do not always get a 1099-S when you sell your house. The closing agent can skip it only when the sale price is $250,000 or less ($500,000 or less if you are married) and you certify in writing that the home was your main home and the entire gain is excluded from tax. If you own a home in the Bay Area, Los Angeles, San Diego or greater Seattle, your sale price is almost certainly above that line, so expect a 1099-S and plan to report the sale on your return.

The form is the easy part. What matters for a household earning $750,000 or more is how much of the gain is taxable after the home sale exclusion, and how California stacks that gain on top of W-2 and RSU income. This guide covers both, with a worked example.

When a 1099-S is required, and the exceptions

The person responsible for closing (usually the escrow or title company listed on your Closing Disclosure) files Form 1099-S with the IRS and sends you a copy. Box 2a on the 2026 form (Box 2 on older versions) shows total gross proceeds, which is generally the sale price, not your profit. The IRS instructions for Form 1099-S list two exceptions that matter to homeowners:

• Principal residence exception. No 1099-S is needed if the price is $250,000 or less ($500,000 if the seller certifies they are married) and the seller signs a certification, under penalty of perjury, that the home was their principal residence, all of the gain is excludable under section 121, and there was no period of nonqualified use after December 31, 2008.
• Very small transfers. Transfers for less than $600 in total consideration are not reported.

For our readers, the practical answer is simple. A $2.4 million house in Cupertino or a $1.9 million house in Kirkland is well past the $500,000 ceiling, so the escrow company will issue the form even if your whole gain is tax-free.

Do you have to report the sale if the gain is excluded?

Yes, if you received a 1099-S. IRS Publication 523 says you must report the sale if you have taxable gain or you received a Form 1099-S. The sale goes on Form 8949 and Schedule D, with the excluded gain shown as an adjustment, so the IRS sees the proceeds and the reason no tax is due.

If you skip it, the IRS computers see gross proceeds on a 1099-S and nothing on your return. That mismatch can trigger a notice that treats the proceeds as unexplained income. Fixing it later means paperwork you do not need, and may mean amending the return.

If you did not receive a 1099-S, the rule turns on the gain. With a fully excluded gain and no form, Publication 523 does not require you to report the sale. With any taxable gain, you report it whether or not a form arrived.

How the home sale exclusion works for 2026

Under section 121, you can exclude up to $250,000 of gain, or $500,000 for a married couple filing jointly, if you pass two tests during the five years before the sale (Publication 523):

• Ownership: you owned the home for at least 24 months.
• Use: you lived in it as your main home for at least 24 months.

The months do not need to be continuous. Your gain is the amount realized (sale price minus selling costs such as commissions and escrow fees) minus your adjusted basis (purchase price plus capital improvements such as an addition or a new roof). A loss on a personal home is not deductible.

California follows the same $250,000 and $500,000 amounts and the same two-of-five-year test (FTB, income from the sale of your home). The difference is the rate on whatever is left over.

Worked example: a $3.2 million sale in Palo Alto versus Bellevue

Assumptions (illustrative, not a forecast): a married couple, both W-2 employees, household income about $950,000 including RSU vests, two children ages 4 and 7. They bought in 2017 for $1,600,000, added $150,000 of improvements, and sell in 2026 for $3,200,000 with $160,000 of selling costs. They have lived there the whole time, so they qualify for the full $500,000 exclusion. Before the sale, their taxable income is about $850,000, which already puts them past the top long-term gain threshold.

Federal tax on the $790,000

For 2026, long-term gains are taxed at 20% once married joint taxable income passes $613,700 (Rev. Proc. 2025-32). Because their wages already clear that line, the whole $790,000 is taxed at 20%, or $158,000. The IRS says only the excluded part of a home sale gain is outside the 3.8% Net Investment Income Tax; the taxable part counts as investment income when modified AGI is over $250,000 for joint filers. Their MAGI is far above that, so NIIT adds $30,020. Federal total: $188,020.

California: the gain is taxed like wages

California has no lower rate for capital gains (FTB). The $790,000 sits on top of their $850,000 of income. Using the 2025 joint rate schedule (the latest the FTB has published), the gain is taxed at 10.3% up to $891,542, 11.3% up to $1,485,906 and 12.3% above that, plus the 1% Behavioral Health Services Tax on taxable income over $1,000,000 (FTB 2025 schedules). That comes to about $96,800 of California tax on the sale.

Total tax on the Palo Alto sale: about $284,800, or roughly 36% of the taxable gain.

Washington: federal tax only on the gain

The same sale in Bellevue carries the same $188,020 of federal tax. Washington’s capital gains tax does not apply, because real estate is exempt (WA DOR). The seller usually pays Washington’s graduated real estate excise tax at closing instead, which is a transfer tax on the price rather than an income tax on the gain. One caution for Washington families: the state’s new 9.9% income tax on AGI over $1,000,000 starts January 1, 2028 (WA DOR), and the Department of Revenue has not yet said how it will treat home sale gains.

Decisions that change the tax, not the form

The 1099-S will arrive either way. These are the choices that move the number:

1. Keep every improvement receipt. In the Palo Alto example, $150,000 of documented improvements saved about $55,700, because that gain would otherwise be taxed at a combined top marginal rate of about 37.1% (20% plus 3.8% federal, 12.3% plus 1% California). Undocumented remodels count for nothing if the IRS asks.
2. Watch the three-year window after moving out. If you move for a new role and rent the old house out, you still pass the two-of-five-year use test only if you sell within about three years of moving out. Gain equal to depreciation you claimed while renting cannot be excluded (Publication 523).
3. Use the partial exclusion for a job move. If a new job location is at least 50 miles farther from the home than your old one, you may qualify for a reduced exclusion even before 24 months. A couple who lived there 12 months could exclude up to 12/24 of $500,000, or $250,000.
4. Time the sale against your RSU calendar in California. The federal 20% rate does not change at this income, but California rates climb with total income. A closing in a year with a large refresh grant vesting pushes more of the gain into the 12.3% bracket.
5. Compare selling with holding. If the house is likely to stay in the family, heirs generally receive a basis equal to market value at death (IRC section 1014). In community property states like California and Washington, that reset can apply to both halves of a home held as community property when the first spouse dies. That is a real trade-off against the flexibility of selling now.

California withholding at escrow, and how to avoid it

California requires the escrow company to withhold 3 1/3% of the sales price on many real estate sales unless the seller certifies an exemption on Form 593 before closing. A sale of your principal residence, within the meaning of section 121, is exempt (FTB 2026 Form 593 instructions). On a $3.2 million sale, missing that form ties up about $106,700 until you file. The exemption does not apply if the last use was as a rental or second home.

Federal withholding is a separate gap. Nobody withholds on your home sale gain, so a large taxable gain may call for an estimated payment in the quarter you close. At the income levels in the example, the RSU withholding at the 22% supplemental rate often already leaves a balance due, and a home sale widens it.

Common mistakes on high-value home sales

• Treating the Box 2a figure as taxable income. It is gross proceeds; your gain is usually far smaller.
• Leaving the sale off the return because the gain “should be” excluded. With a 1099-S, you report it.
• Forgetting NIIT. The 3.8% applies to the taxable part of the gain at these incomes.
• Assuming the $500,000 exclusion is automatic for couples. Each spouse must meet the use test, and neither can have used the exclusion on another home in the prior two years.
• Forgetting that MAGI rises with the gain, which can affect other thresholds in the same year.

What to write down for your kids

A home sale is one of the largest financial decisions most families make, and children usually see only the moving boxes. Keep a one-page record: what you paid, what you improved and why, what you sold for, the tax you paid, and the reasoning behind selling rather than renting or holding. Store it with the closing statement and the 1099-S. Kevin puts the underlying question this way: “Your kids will inherit your money. Will they inherit your judgment?” Conversations fade. Documentation compounds.

Frequently asked questions

Who sends the 1099-S when I sell my house?

The person responsible for closing the transaction, which is usually the settlement agent named on the Closing Disclosure, typically your escrow or title company. If no settlement agent is named, the IRS instructions set out who is responsible next. You receive a copy for your records, and the IRS receives the same figures, so your return should match them.

What if I did not receive a 1099-S?

Ask the escrow company whether one was filed, since it may simply be delayed or mailed to your old address. If your gain is fully covered by the $250,000 or $500,000 exclusion and no form was issued, Publication 523 does not require you to report the sale. If any part of the gain is taxable, you must report it on Form 8949 and Schedule D regardless.

Does the 1099-S mean I owe tax on the whole sale price?

No. The form reports gross proceeds so the IRS knows a sale happened. Your tax depends on the gain after selling costs, your adjusted basis and the section 121 exclusion. In the Palo Alto example, a $3.2 million sale produced $790,000 of taxable gain, not $3.2 million, and many families with smaller price gains owe nothing federally.

Next step

Before you list, pull together your original closing statement and improvement receipts, estimate the gain with the table above, and decide whether an estimated payment is needed. If you want a second set of eyes on how a sale fits with your RSU income, our tax management work and equity compensation planning cover both, and the Tax & Wealth Assessment is the place to start.

This article is general education. The right move depends on your family’s full picture.

Written by

Kevin Luu

Co-Founder and Chief Learning Officer, Bright Advisers

Kevin has advised high-income W-2 tech and biotech families since 2015, and leads the education-first Age Five Family Office from Brea, California.

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