The FIRPTA Withholding Certificate Process: An 8288-B Timeline From Contract to Released Funds

A withholding certificate (Form 8288-B) lets a foreign seller cut the 15% FIRPTA hold down to the actual tax on the gain — often a fraction of it. You file it on or before closing, the buyer holds the money rather than wiring it to the IRS, the IRS reviews the application (generally within 90 days), and once the certificate is issued the buyer remits only the approved amount and releases the rest.

FIRPTA — the Foreign Investment in Real Property Tax Act — requires the buyer of U.S. real estate from a foreign seller to withhold a flat percentage of the gross sale price and send it to the IRS. Per the IRS, "the rate of withholding generally is 15%" of the amount realized (IRS, FIRPTA withholding). That 15% is not your tax bill — it is a deposit against whatever tax you actually owe on the gain. When you have a small gain (or a loss), the deposit can dwarf the real tax, and your cash sits at the IRS until you file a return the following year to claim it back.

The withholding certificate is the mechanism that fixes the timing problem at the source. Instead of over-withholding now and refunding later, Form 8288-B asks the IRS to approve a reduced withholding amount — usually the seller's "maximum tax liability" on the deal — before any money leaves the closing table. This guide walks the full process as a timeline, with a worked example showing a $90,000 hold reduced to roughly $12,000 and $78,000 released.

What Form 8288-B actually does

Form 8288-B is the "Application for Withholding Certificate for Dispositions by Foreign Persons of U.S. Real Property Interests" (IRS, About Form 8288-B; current revision Dec. 2025). It lets a foreign seller "apply for a withholding certificate to reduce or eliminate withholding" on the sale of U.S. real property.

The most common basis for approval is that the standard 15% hold is greater than the seller's actual maximum tax on the transaction. If you bought a condo for $580,000 and are selling it for $640,000, the gain is roughly $60,000 — but 15% of the $640,000 price is $96,000 withheld. The certificate exists to bridge that gap before the over-withholding happens, not after.

The 8288-B timeline, step by step

Step 1 — File the application on or before the disposition date

Timing is the whole game. To get the relief, the application must be submitted on or before the date of transfer (closing). The IRS also requires the seller to tell the buyer in writing that a certificate has been applied for: a transferor "must notify the transferee in writing that the certificate has been applied for on the day of or the day prior to the transfer" (IRS, Withholding certificates). That written notice is what authorizes the buyer to hold the funds in escrow rather than wire them to the IRS within 20 days.

Step 2 — The buyer (or escrow) holds the funds; nothing is remitted yet

Here is the part sellers most often misread. The buyer must still withhold the full amount — the certificate application does not switch off the withholding obligation. The IRS is explicit: "You must withhold even if an application for a withholding certificate is or has been submitted to the IRS on the date of transfer" (Instructions for Form 8288).

What does change is the deadline to pay it over. Normally the buyer "must file Form 8288 and transmit the tax withheld to the IRS by the 20th day after the date of transfer." But with a pending application, "you do not have to file Form 8288 and transmit the withholding until the 20th day after the day the IRS mails you a copy of the withholding certificate or notice of denial." So the money sits — typically in escrow — while the IRS reviews.

Step 3 — The IRS reviews (generally about 90 days)

The IRS targets a 90-day turnaround: it "will generally act on these requests within 90 days after receipt of a complete application including the Taxpayer Identification Numbers (TINs) of all the parties to the transaction" (IRS, Withholding certificates). The phrase complete application matters: a missing TIN, no gain computation, or no basis support pushes you to the back of the line. Applications missing requested information "will usually result in the rejection of the application."

Step 4 — The certificate is issued; the buyer remits the approved amount

When the IRS mails the withholding certificate, it states the reduced amount that must actually be withheld and paid. The buyer then files Form 8288/8288-A for that reduced figure by the 20th day after the IRS mailed the certificate.

Step 5 — The excess is released to the seller

Because only the approved amount goes to the IRS, everything held above it is released to the seller out of escrow — no need to wait until the next filing season and file a return to chase a refund. That is the entire advantage of the certificate: it converts a year-long refund wait into a release at closing-plus-a-few-months.

Why the buyer withholds but does not remit while you wait

This two-part rule confuses almost every first-time foreign seller. The logic: FIRPTA protects the IRS's ability to collect tax from a seller who may leave the country. So the obligation to withhold never pauses — the funds must be set aside the moment the deal closes. But because a properly filed certificate may reduce the amount owed, the IRS lets the buyer delay remittance until it has ruled. The money is parked in escrow, fully withheld, simply not yet sent.

What documents the IRS requires

For a certificate based on the seller's maximum tax liability, the application has to let the IRS independently recompute the tax. Per the IRS application format guidance (IRS, Format for applications), expect to provide:

• The gain computation — information establishing the transferor's maximum tax liability (amount realized minus adjusted basis, with the tax math).
• Basis support — the original purchase price plus receipts/records for capital improvements that raise the basis, and selling costs that reduce the amount realized.
• The contract / closing statement — contract price, transfer date, and a description and location of the property.
• TINs for both parties — the name, address, and Taxpayer Identification Number for the applicant and for all other transferors and transferees. A foreign seller without an SSN generally needs an ITIN (IRS, ITIN guidance for foreign property buyers/sellers).
• Authorization — a Form 2848 power of attorney if a representative signs, plus a penalties-of-perjury statement.

Missing TINs are the single most common reason the 90-day clock never starts — the IRS treats the application as incomplete until every party's TIN is present.

When the IRS denies: the 20-day clock to remit the full amount

A certificate is not guaranteed. If the IRS is not satisfied with the gain computation, the security offered, or the documentation, it mails a notice of denial. That notice starts the same 20-day clock — but now the buyer must remit the full standard withholding (the entire $90,000 in Mariana's example), because no reduction was approved.

The relief deadline runs from the mailing date either way: the buyer files Form 8288 and pays "by the 20th day after the day the IRS mails you a copy of the withholding certificate or notice of denial." A denial does not leave the seller without recourse — the over-withheld amount can still be recovered by filing a U.S. income-tax return for the year of sale. It just reverts to the slow, refund-the-following-year path the certificate was meant to avoid.

Where the residence exceptions fit

Before assuming you need a certificate, check whether an exception already lowers your number. Per the IRS exceptions guidance (IRS, Exceptions from FIRPTA withholding):

• No withholding when the buyer acquires the property for use as a residence and the amount realized is $300,000 or less (the buyer or family must have definite plans to reside there at least 50% of the days the property is used during each of the first two 12-month periods after transfer).
• Reduced 10% rate when the buyer will use it as a residence and the amount realized is more than $300,000 but not more than $1,000,000.
• Standard 15% otherwise — including any sale over $1,000,000 regardless of intended use, and investor purchases like Mariana's.

These exceptions depend on the buyer's use and are separate from the certificate. If your gain is small but none of the residence exceptions apply, the 8288-B certificate is your tool.