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FIRPTA and 1031 Exchanges: What Foreign Sellers Need to Know

AL
Andrew Lam
Head of Exchange Compliance, zoom1031
Apr 10, 2026 · 6 min read

Foreign sellers face an extra layer of withholding requirements under FIRPTA. A 1031 exchange can defer capital gains — but only if the FIRPTA issue is handled correctly from the start.


If you're a foreign seller — or an agent or closing attorney representing one — and you want to do a 1031 exchange in the US, FIRPTA adds a critical layer of complexity that must be handled correctly from day one. Mishandle it, and you could lose 15% of your gross sale price to withholding even on a fully tax-deferred exchange.

FIRPTA Basics

The Foreign Investment in Real Property Tax Act (FIRPTA) requires that when a foreign person sells US real estate, the buyer must withhold 15% of the gross sales price and remit it to the IRS. This withholding serves as an advance payment against the seller's US tax liability.

"Foreign person" for FIRPTA purposes includes non-resident aliens, foreign corporations, foreign partnerships, and certain foreign trusts. US citizens and permanent residents (green card holders) are not subject to FIRPTA, regardless of where they live.

The Core Problem: 15% of Gross, Not 15% of Gain

FIRPTA withholding is calculated on the gross sales price, not the gain. This creates a dramatic mismatch for a seller doing a 1031 exchange.

Example: A foreign seller sells a property for $2,000,000 with $1,700,000 in adjusted basis. The capital gain is $300,000. But FIRPTA withholding is $300,000 (15% of $2,000,000) — the entire gain — withheld before the seller can reinvest it.

For a 1031 exchange where the goal is to reinvest 100% of proceeds, losing 15% to withholding immediately creates two problems: a potential tax event (the withheld amount isn't in the exchange) and a cash-flow problem if the withheld funds are needed to close on the replacement property.

The Withholding Certificate: Your Primary Tool

Foreign sellers doing 1031 exchanges should apply for a withholding certificate from the IRS using Form 8288-B. This application notifies the IRS that you intend to do a 1031 exchange and requests that withholding be reduced or eliminated based on your actual tax liability.

The IRS will reduce or eliminate withholding if:

  • The exchange is properly structured with a qualified intermediary
  • The replacement property has been identified or is already under contract
  • The seller can demonstrate that the net tax liability will be substantially deferred

Critical timing issue

The IRS takes 90 days or more to process withholding certificate applications. Your 45-day identification window and 180-day closing window may both expire before you receive a decision on the certificate.

This is why early filing is essential. File Form 8288-B as soon as you have a ratified purchase contract for the relinquished property — not at closing.

What Happens at Closing If You Don't Have a Certificate Yet

If your withholding certificate application is pending at the time of closing, the buyer is still technically required to withhold. However, there are two practical options:

  1. The withheld amount is placed in an interest-bearing escrow account (not remitted to the IRS immediately) while the application is pending — this requires the buyer's cooperation and is not automatic.
  2. The buyer remits the full 15% to the IRS and the seller files a tax return to claim a refund after the exchange is complete — a process that typically takes 6–12 months.

Neither outcome is ideal, which is why early preparation is not optional for foreign sellers doing 1031 exchanges.

Common Mistake: Disclosing Foreign Status Too Late

The most common FIRPTA mistake is not disclosing foreign status to the closing agent until the last minute — sometimes the day of closing. By that point, there's no time to file for a withholding certificate, no time to arrange an escrow agreement with the buyer, and the full 15% gets remitted to the IRS immediately.

This leaves the seller with a failed exchange (they couldn't reinvest 100% of proceeds) and a 6–12 month wait to recover the overpayment from the IRS.

The FIRPTA clock starts long before closing. Disclose your foreign status on day one — to your listing agent, your closing attorney, your QI, and the title company. Everyone in the transaction needs to know.

FIRPTA + 1031: The Coordinated Approach

Here's the recommended sequence for foreign sellers who want to do a 1031 exchange:

  1. Engage a QI before listing the property (or immediately upon listing)
  2. Disclose FIRPTA status to all parties when listing
  3. File Form 8288-B as soon as a purchase contract is signed
  4. Coordinate the certificate status with your closing agent; if the certificate won't arrive in time, arrange the escrow hold option with the buyer in advance
  5. Proceed with normal 1031 exchange identification and replacement procedures
  6. After exchange completion, file US tax return to confirm deferred gain and reclaim any excess withholding

zoom1031 has experience coordinating exchanges for foreign sellers and works directly with your closing agent to manage the FIRPTA and QI documentation simultaneously.

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