The Estate Tax Trap: FIRPTA Withholding and Entity Structuring Before Contract

Here is the mistake I see most often, and it is almost always made before I ever meet the client: a foreign national buys a Florida condo in a single-member LLC, believing the LLC protects the family from liability and from U.S. estate tax. It does neither. Because the IRS treats a single-member LLC as a disregarded entity, the property is taxed at death as if the foreign buyer owned it directly — exposing the estate to a 40% tax with an exemption of just $60,000. That structure gets chosen in maybe fifteen minutes at a title company closing table, and it can cost an heir six figures. This is the article I wish every closing agent handed to every foreign buyer before contract, not after.

The U.S. Policy Corridor: Market Conditions

Foreign buyers purchased 67,100 U.S. homes worth $45.3 billion between April 2025 and March 2026, according to the latest NAR benchmark data. That is a real pullback: unit volume fell 14% and dollar volume fell 19.1% year over year. This is the second-lowest transaction count NAR has recorded since it began tracking this data in 2009.

But volume decline is not the story practitioners should focus on. The story is who these buyers are and how they pay. The median purchase price for foreign buyers was $465,000, well above the $413,600 median for all existing-home buyers. The average purchase price was about $669,500. And 48% of these buyers paid all cash, compared to just 28% of all existing-home buyers. That gap matters enormously for structuring, because a cash buyer has no lender forcing them into a particular ownership vehicle. The choice of LLC, trust, or foreign corporation is entirely the buyer's — which means it is entirely on the closing attorney and CPA to get it right.

Canada led all countries with 16% of foreign purchases (about 10,700 homes, $5.2 billion). Mexico was second at 14% (roughly 9,400 homes, $5 billion). China ranked third by unit count at 11%, but remained the largest source of dollar volume — about $7.6 billion across 7,400 homes, an average purchase price near $1 million. Higher price points mean higher stakes on every structuring decision, because the estate tax exposure scales directly with property value.

Legal & Regulatory Framework

FIRPTA basics. The Foreign Investment in Real Property Tax Act taxes the gain a foreign person realizes when they sell a U.S. real property interest. The standard withholding rate is 15% of the gross sales price — not the gain, the full price. On a $700,000 sale, that is $105,000 withheld at closing.

Here is the detail that catches practitioners off guard: the buyer, not the seller, is the withholding agent. If the buyer fails to withhold when required, the buyer becomes personally liable for the tax, plus penalties and interest. I tell every buyer's agent the same thing: your client's liability does not end when they wire the purchase price. It continues at resale, whenever that happens, if the seller on that future transaction is a foreign person and nobody withholds properly.

There is relief. A seller can file Form 8288-B, an application for a withholding certificate, to reduce withholding to match actual expected gain rather than the full 15% of gross price. File this at least 90 days before closing. Most practitioners start this process at contract signing or later — too late to avoid the standard withholding hitting escrow at closing.

The estate tax trap. This is the structuring mistake I want every attorney reading this to internalize. A single-member LLC is disregarded for U.S. tax purposes. That means the IRS looks straight through the LLC and treats the foreign owner as holding the real estate directly. On death, that property sits in the estate and is taxed at up to 40%, with only a $60,000 exemption for non-resident aliens — compared to the multi-million-dollar exemption available to U.S. citizens. A $2 million Miami condo held in a disregarded SMLLC can generate roughly $776,000 in estate tax on the death of the foreign owner. The LLC did nothing to prevent it.

Structuring alternatives. Some practitioners use a layered structure: a foreign corporation owns a U.S. LLC, which owns the property. Done correctly, this converts the U.S. situs asset into ownership of a foreign entity, which may fall outside U.S. estate tax reach. This is contested legal territory and depends on the specific corporate layering and treaty position — it requires a specialist international tax attorney, not a general practice closing attorney. Irrevocable trust structures (QPRTs, SLATs, dynasty trusts) are another path, but they are expensive to build and administer, and they are not a same-day fix at contract signing.

Sale-side withholding by entity type. If a U.S. LLC sells the property, FIRPTA's 15% gross-price withholding does not apply directly — but the LLC must withhold 35% of the foreign partner's proportionate gain under partnership rules. If a foreign corporation sells and distributes proceeds to its foreign shareholder, withholding is 21% of the gain. Three different entity types, three different withholding regimes, three different filing deadlines. Get the entity choice wrong and you get the tax treatment wrong.

AML and beneficial ownership. Title companies in FinCEN-designated geographic areas must collect beneficial ownership information on entities purchasing residential real estate with cash, above reporting thresholds. Layer in a foreign corporation or trust, and that disclosure burden multiplies. Resolve beneficial ownership documentation before closing — not during the closing week, when title companies are least able to accommodate delay.

The Practitioner Playbook

Here is what I tell every attorney, agent, and CPA who calls me about a foreign buyer's closing.

• Structure before contract, not after. The entity decision — LLC, trust, foreign corporation, or layered combination — must be made and formed before the buyer signs a purchase agreement, not during the due diligence period. Retitling after signing creates transfer tax exposure and lender complications, and it signals to everyone at the closing table that nobody planned ahead.
• Never let a foreign buyer take title in a single-member LLC without a written estate tax disclosure. If the client insists on the SMLLC for liability reasons, get a signed acknowledgment that they understand the estate tax exposure. I have seen families discover this only after a parent's death, when the surviving spouse learns the "protective" LLC accomplished nothing on the tax side.
• Start the Form 8288-B process 90 days before any anticipated sale, not at listing. Foreign sellers routinely lose access to a reduced withholding certificate simply because nobody started the paperwork early enough. That means real cash — sometimes six figures — sits frozen at the IRS for months instead of going to the seller at closing.
• Coordinate the closing attorney, the CPA, and the immigration attorney as one team before the purchase contract is signed. FIRPTA, entity structure, and visa status intersect constantly — a buyer's visa category can affect tax residency, which affects the entire withholding analysis.

The practitioners who close these deals cleanly are the ones who ask about the family's full picture — assets, heirs, home country tax exposure — before recommending a structure. The ones who lose these deals, or worse, create liability years later, are the ones who default to "form an LLC" because that's what they always do for domestic buyers.

What the Data Tells Us About Buyer Motivation

The 48% all-cash rate is not just a financing statistic — it tells you why these buyers are here. A domestic buyer financing 80% of a purchase is optimizing for leverage and monthly payment. A foreign buyer paying cash is optimizing for something else entirely: certainty, portability, and distance from political or currency risk at home.

Canadian and Mexican buyers, who together make up 30% of foreign purchases, are largely driven by proximity, lifestyle, and long-standing family ties to Sun Belt markets — Florida, Arizona, Texas. Their structuring needs tend to be simpler: often a primary or secondary residence, sometimes an LLC for liability protection where the estate tax exposure is modest relative to overall wealth.

Chinese buyers, at an average purchase price near $1 million, present a different profile entirely: capital diversification away from domestic currency and political risk, often paired with a family member's U.S. education or a long-term immigration goal. At that price point, the estate tax trap is not theoretical — it's material, and it demands the layered entity or trust conversation at first consultation, not at closing.

Across the board, the pullback in international travel to the U.S. that NAR's Lawrence Yun points to is a signal practitioners should not ignore. If fewer buyers are physically visiting the U.S. before purchase, more transactions are happening remotely — through referral networks, video walkthroughs, and power-of-attorney closings. That raises the stakes on getting the entity structure right the first time, because the buyer may not be in the room, or even in the country, when problems surface.

What I'm Watching

First, the IRS shift to mandatory electronic FIRPTA payments through EFTPS. Once this becomes mandatory, buyers and closing agents unfamiliar with the federal electronic payment system will face a new operational bottleneck at closing. Title companies need to build this into their FIRPTA checklist now, not when the mandate takes effect.

Second, the durability of the foreign-entity-layering estate tax strategy. This approach — routing U.S. real estate through a foreign corporation's ownership of a U.S. LLC — rests on contested legal ground. If the IRS or Treasury moves to close this planning avenue, as has happened with other cross-border structures, families relying on it will need to unwind and restructure, likely at a taxable event. I am watching Treasury guidance closely, and I recommend every family using this structure review it annually, not treat it as set-and-forget.

Third, the continued decline in foreign buyer volume against a still-elevated cash share. If overall volume keeps falling while the cash percentage holds near 48%, it tells us the remaining buyers are increasingly high-net-worth and structure-sensitive. Fewer, larger, more complex transactions is a different practice than many, smaller, simpler ones — and it rewards practitioners who specialize over those who dabble.