Form W-9 in a real estate sale
Sell property and the closing agent will ask for your TIN before it releases funds. The form behind that request is a W-9, and the form that follows is a 1099-S.
Name, box, number, and what gets reported
- Who asks
- The closing agent, title company, or attorney handling settlement
- Form that follows
- Form 1099-S, Proceeds From Real Estate Transactions
- What is reported
- Gross proceeds; your profit is computed on your own return
- Line 1
- The seller of record, matching the deed and the TIN
- Possible exemption
- A principal residence sale meeting specific conditions, via a separate written certification
- If you refuse
- No backup withholding, since real estate transactions are exempt from it. But the closing agent cannot file Form 1099-S, and settlement stalls
A real estate closing generates an information return. The person responsible for closing, usually the title company or settlement attorney, must report the gross proceeds on Form 1099-S and cannot do it without a certified TIN. So the closing package includes a W-9 or a substitute version of one, and funds do not move until it is signed.
Form 1099-S reports the gross sale price. It knows nothing about what you paid, what you spent on improvements, or what you still owed. A $600,000 1099-S on a house you bought for $560,000 does not mean $600,000 of income. You compute gain on your own return.
Signing this form does not expose you to 24% backup withholding. The IRS list of payments exempt from backup withholding includes real estate transactions reportable under section 6045(e), so the 24% mechanism never reaches settlement money. The certification still matters, because the closing agent needs a correct TIN to file Form 1099-S, and because the $50 penalty for failing to furnish one still applies. A foreign seller faces a different and much larger withholding regime under FIRPTA, described below.
What to put on each line
8; a corporate seller may have code 5The principal residence exemption
A sale of a principal residence can be exempt from 1099-S reporting, but only if the seller gives the closing agent a specific set of written assurances. This is a checklist of factual statements, not a calculation of your gain, and the wording comes from the IRS revenue procedure the regulations point to. Your closing agent will hand it to you in the middle of a stack of forty other documents, usually on the day, usually with a pen already uncapped. Read it. The assurances run along these lines:
- the seller owned and used the property as a principal residence for periods aggregating two years or more during the five-year period ending on the date of sale;
- the seller has not sold or exchanged another principal residence during the two-year period ending on the date of sale;
- no portion of the residence was used for business or rental purposes by the seller, or by the seller’s spouse on a joint return, after May 6, 1997;
- and one of the following: the sale is of the entire residence for $250,000 or less; or the seller is married, the price is $500,000 or less, and the gain is $250,000 or less; or the seller is married, the price is $500,000 or less, and the seller intends to file a joint return for the year of sale.
People assume the exemption turns on whether their gain fits inside the section 121 exclusion. It turns instead on whether you can sign every assurance the closing agent’s form asks for. A seller with a modest gain who rented the property out for a year, or who sold another home eighteen months ago, cannot give the assurances and will receive a 1099-S. The business-or-rental assurance is the one that catches people who let the place out on a booking platform: short-term rentals.
The certification is a separate document from the W-9 and does not replace it. Signing it when the facts do not support it is a false statement. If any assurance does not hold, say so and let the agent file the form.
Where the assurances are not given, the closing agent files Form 1099-S. You then report the sale on your return and claim the section 121 exclusion there if it applies, which is an ordinary outcome and nothing to worry about. Receiving a 1099-S does not mean you owe tax on the proceeds.
What is and is not reportable
| Transaction | Reportable on 1099-S? |
|---|---|
| Sale of a house, condominium or co-op unit | Yes, unless the principal residence certification is given |
| Sale of vacant land | Yes |
| Sale of commercial or rental property | Yes |
| Sale of a permanent structure such as an apartment building | Yes |
| A grant or transfer of an easement or timber rights | Generally yes |
| A gift of property with no proceeds | No |
| A foreclosure or deed in lieu | Reported, often on Form 1099-A or 1099-C instead |
| A sale by a corporation or government unit | Generally exempt from 1099-S |
Foreign sellers: a different form and a real withholding tax
If you are not a U.S. person, do not sign a W-9. Under FIRPTA the buyer generally must withhold 15% of the amount realized under IRC section 1445(a) on a purchase of U.S. real property from a foreign person, and remit it to the IRS. A reduced 10% rate can apply where the buyer acquires the property as a residence and the amount realized is above $300,000 but not more than $1,000,000, and a full exemption can apply at or below $300,000 where the buyer will use it as a residence. Those conditions are narrow and fact-specific.
This is a substantive withholding tax on the transaction, an order of magnitude larger than 24% backup withholding, and it comes out of the buyer’s side of the closing. A seller who expects to owe less than the withheld amount can apply for a withholding certificate on Form 8288-B before closing.
Part II of the W-9 certifies that you are a U.S. person. Signing it to avoid FIRPTA withholding is a false certification with a civil penalty attached, and it shifts a substantial liability onto the buyer. A foreign seller should be discussing withholding certificates and Form 8288-B with a tax advisor before closing. U.S. person or not
Mistakes to avoid
- Writing your old address on Lines 5 and 6. You are moving; the 1099-S follows whatever the form says.
- Signing the principal residence certification without meeting every condition.
- Treating the 1099-S figure as taxable gain.
- Giving a disregarded LLC’s EIN where the property is held in a single-member LLC.
- Filing one W-9 for two unmarried co-owners who each need their share reported.
- Signing a W-9 as a foreign seller. FIRPTA is the issue and the form is a W-8.
- Expecting 24% backup withholding to apply. Real estate transactions are exempt from it; refusing the form simply stalls the closing.
Frequently asked questions
Can I refuse to give a W-9 at closing?
You can, and it will not trigger backup withholding: real estate transactions reportable under section 6045(e) are on the IRS list of payments exempt from backup withholding. It does leave the closing agent unable to file a complete Form 1099-S, which in practice stalls settlement, and it exposes you to the $50 penalty under IRC 6723 for failing to furnish a TIN.
I sold my home at a loss. Do I still need to do this?
Yes. Reporting follows the transaction regardless of whether you profited. Provide the W-9; a loss on a personal residence is simply not deductible.
Why did I get a 1099-S when my agent said I would not?
Either the principal residence certification was not completed, or a condition was not met. Report the sale on your return and claim the section 121 exclusion if it applies.
The property is in a trust. Whose name and TIN?
Whichever the trust reports under. A grantor trust generally uses the grantor’s SSN; an irrevocable trust uses its own EIN. Trust guidance
General information, not tax advice. This page explains a federal tax form in plain English. It is not legal, tax, or accounting advice, and W9Form.org is not affiliated with the IRS. Verify everything against the official Form W-9 page on IRS.gov and speak to a licensed professional about your own situation. How we source and review these pages.