What Is a FIRPTA Escrow Agreement for Tax Withholding?

A FIRPTA escrow agreement is a written contract among the buyer, the foreign seller, and a neutral escrow agent that holds the tax withheld from a U.S. real property sale in a secure account while the IRS decides how much of it actually has to be paid. Without the agreement, the buyer has to send the full 15% withholding to the IRS within 20 days of closing, even if the seller’s real tax bill is far smaller.¹ The escrow bridges that gap: the money is set aside, the seller applies for a withholding certificate, and no funds move until the IRS says how they should.

Why the Escrow Exists

FIRPTA withholding under 26 U.S.C. § 1445 is a flat percentage of the amount realized on the sale, not of the seller’s profit.² The amount realized is the cash paid, the fair market value of any other property transferred, and any liabilities the buyer assumes, such as an existing mortgage.

That formula routinely overshoots the actual tax. Consider a foreign seller who bought a property for $900,000 and sells it for $1,000,000. The 15% withholding comes to $150,000, but the taxable gain is only $100,000, and the tax on that gain is a fraction of $150,000. Sending the full withholding to the IRS ties up the seller’s cash for months while a refund works its way through the system.

The escrow arrangement solves this by parking the withheld money with a neutral party. The buyer satisfies the legal obligation to withhold by placing the funds with the agent rather than keeping them. The seller avoids handing excess cash to the IRS. The agent, usually a title company or closing attorney, holds everything in place until the IRS provides direction.

What the Agreement Contains

A FIRPTA escrow agreement identifies the buyer, the seller, and the escrow agent by full legal name and address, describes the property by both legal description and street address, and states the exact dollar amount being held. That figure is calculated from the amount realized, not estimated.

The core of the document is the set of release instructions. These cover three scenarios:

The IRS issues a withholding certificate specifying a reduced amount. The agent sends that amount to the IRS and releases the rest to the seller.
The IRS denies the application. The agent remits the entire balance to the IRS.
The IRS doesn’t respond by a set date. The agent sends the funds to the treasury so the buyer isn’t exposed indefinitely.

Beyond the release triggers, a workable agreement also spells out who pays the escrow agent’s fee, which bank holds the funds, whether the account earns interest and who receives it, and what happens if either side disputes a release. Escrow fees vary with the complexity of the deal and the agent involved. Nailing these details down at signing prevents fights later, especially when the IRS review runs long.

Form 8288-B: What Makes the Escrow Legal

An escrow agreement only holds up if the seller has actually applied for a reduced withholding. That application is Form 8288-B, and it asks the IRS to issue a withholding certificate specifying a lower amount, or zero, based on the seller’s expected tax liability.³

Timing is strict. Form 8288-B must be submitted to the IRS on or before the date of the property transfer. Filing on time is what authorizes holding funds in escrow rather than remitting them. When the application is pending on the closing date, the buyer still has to withhold the required amount, but does not have to pay it over to the IRS until the 20th day after the IRS mails either a withholding certificate or a denial notice.³ Miss the filing deadline and the escrow option disappears; the buyer must remit the full withholding to the IRS within 20 days of closing, and the seller has to file a U.S. tax return after year-end and wait for a refund.¹

The application itself requires U.S. taxpayer identification numbers for every buyer and seller in the transaction. Without them, the IRS cannot process the request. The seller must also show a detailed calculation of expected maximum tax liability: amount realized minus adjusted basis, with the applicable capital gains rate applied. Documentation matters. The IRS expects the original purchase contract, closing statements, and records of capital improvements that raised the basis, such as additions, system upgrades, or a new roof. Routine maintenance like painting or patching cracks does not increase basis unless done as part of a larger renovation.⁴

Form 8288-B is mailed to the Ogden Service Center, P.O. Box 409101, Ogden, UT 84409.⁵ Send it by certified mail and keep the receipt. That mailing date is the proof of timely filing if the IRS later questions why funds were held rather than remitted.

One practical wrinkle for sellers without a U.S. tax ID: Exception 4 on Form W-7 lets a foreign person in a FIRPTA transaction apply for an ITIN without attaching a tax return, using the sales contract and Forms 8288 and 8288-A as supporting documents.⁶ Start that paperwork early, because the ITIN has to be in place before the withholding certificate application can be processed.

Releasing the Funds

The IRS generally acts on a complete withholding certificate application within 90 days.⁷ “Complete” is the key word. Missing information or a request for more documentation effectively resets the clock, and the review often runs past 90 days in practice. Build the escrow agreement to accommodate delay rather than betting on a fast response.

When the IRS does respond, the escrow agent has 20 days to act. If a certificate specifies a reduced tax amount, the agent sends that amount to the IRS along with Form 8288 and copies A and B of Form 8288-A, and releases the balance to the seller. If the IRS denies the application, the full withheld amount goes to the IRS within the same 20-day window.⁵

Once the IRS processes the payment, it stamps Copy B of Form 8288-A and mails it to the seller. That stamped copy is the seller’s proof of withholding. It gets attached to the seller’s U.S. income tax return (Form 1040-NR for individuals, Form 1120-F for corporations) to claim credit for the withheld amount, or to an application for early refund if the withholding exceeded the actual tax.⁵ Keep copies. Losing the stamped form creates real problems.

What Happens Without the Escrow Route

The penalty structure is the reason buyers insist on FIRPTA compliance at closing. A buyer who fails to withhold becomes personally liable for the full tax that should have been withheld, plus interest running from the original due date and any applicable civil or criminal penalties.⁸ Late filing of Form 8288 costs 5% of unpaid tax per month, up to 25%; late payment adds 0.5% per month, also capped at 25%.⁹ Willful failure to collect and pay the tax carries a separate penalty of up to $10,000, and responsible corporate officers can be assessed the full amount that should have been withheld under Section 6672.⁵

The buyer’s exposure survives the seller paying their own tax. Under the regulations, the IRS can still assess the full withholding against the buyer, collect interest from the original due date, and pursue penalties even if the seller has already settled the underlying liability.⁸ There is also an anti-abuse rule: if the IRS decides a withholding certificate application was filed mainly to delay payment rather than because the seller expected a lower bill, interest and penalties run from the 21st day after closing, not from the date of the IRS response.

Corporate and Partnership Transactions

The standard escrow structure fits a straightforward sale of real property by a foreign individual. Corporate and partnership transactions work differently. A foreign corporation distributing U.S. real property in a liquidation or shareholder distribution withholds 21% of the gain it recognizes; a domestic corporation distributing property to foreign shareholders in a redemption or liquidation withholds 15% of the amount realized, with the entity itself acting as withholding agent rather than the buyer.¹⁰ A foreign partner’s sale of a partnership interest that derives value from U.S. real property triggers 15% withholding on the amount realized.¹¹ Any escrow used in these deals has to identify the correct withholding agent and account for the specific entity rules involved, because misidentifying who withholds carries the same penalties as failing to withhold at all.

1
Internal Revenue Service. Reporting and Paying Tax on U.S. Real Property Interests
2
Office of the Law Revision Counsel. 26 USC 1445 – Withholding of Tax on Dispositions of United States Real Property Interests
3
Internal Revenue Service. Form 8288-B – Application for Withholding Certificate for Dispositions by Foreign Persons of U.S. Real Property Interests
4
Internal Revenue Service. Publication 523 – Selling Your Home
5
Internal Revenue Service. Instructions for Form 8288
6
Internal Revenue Service. Instructions for Form W-7 – Application for IRS Individual Taxpayer Identification Number
7
Internal Revenue Service. Withholding Certificates
8
eCFR. 26 CFR 1.1445-1 – Withholding on Dispositions of U.S. Real Property Interests
9
Office of the Law Revision Counsel. 26 U.S. Code 6651 – Failure to File Tax Return or to Pay Tax
10
Internal Revenue Service. FIRPTA Withholding
11
Office of the Law Revision Counsel. 26 U.S. Code 1445 – Withholding of Tax on Dispositions of United States Real Property Interests