You are eight days from closing on a duplex. The appraisal came back fine, the lease is signed, the insurance binder is in. Then the title agent sends a one line email: the seller cannot sign the non-foreign affidavit, so we will need to withhold fifteen percent of the purchase price at settlement.
Most investors read that and assume it is the seller’s problem. It is not. Under the federal rules that govern foreign sellers of US real estate, the buyer is the withholding agent. If the money does not get withheld and remitted, the IRS can collect it from you, plus interest and penalties, years after you have already rented the place out twice over.
This is one of those closing table problems that has nothing to do with your loan file and everything to do with whether your loan file ever funds. Here is the whole mechanism, what it costs, and the one number that decides whether the deal survives.
What the rule actually says
The Foreign Investment in Real Property Tax Act, universally shortened to FIRPTA, exists because a nonresident seller can take sale proceeds out of the country before the IRS ever sees a return. So the law moves collection to the front of the transaction. When a foreign person disposes of a US real property interest, the buyer must withhold a percentage of the gross sales price and send it to the IRS.
Read that phrase again, because it is where investors get the math wrong. The withholding is on the gross price, not on the seller’s gain. A seller who bought at 300,000 dollars and is selling at 310,000 dollars has a 10,000 dollar gain and faces withholding calculated on 310,000 dollars. The two numbers have nothing to do with each other.
The standard rate for an investment purchase is fifteen percent. You will read about reduced rates of ten percent and zero percent on smaller transactions, and you should ignore them, because both reductions require the buyer to be acquiring the property as a personal residence. You are buying a rental. The reduced rates are not available to you. Fifteen percent, full stop.
Who counts as a foreign person, and the trap inside that question
A foreign person means a nonresident alien individual, a foreign corporation, a foreign partnership, a foreign trust, or a foreign estate. A US citizen is not a foreign person. A green card holder generally is not. Someone who meets the substantial presence test for the year generally is not.
The trap is entity sellers. A domestic LLC is a US entity, so a sale by a domestic LLC does not trigger withholding, with one large exception: if the LLC is a single member disregarded entity, the rules look straight through it to the owner. A Delaware LLC with one member who lives in Lisbon is, for this purpose, a foreign seller. The deed will say LLC. The affidavit will say otherwise.
If you have ever sat on the borrower side of this question, you already know the shape of it from the other direction. The same residency and documentation questions that decide whether withholding applies to a seller are the ones a lender works through when the buyer is abroad, which we cover in DSCR Loan for a Foreign National Investor. Separately, every borrowing entity on your side of the table gets run through its own identity and sanctions screening, described in The Screening Nobody Mentions. Two different checks, both triggered by the same underlying fact pattern.
How you find out: the affidavit
The answer arrives on a single page. At or before closing, the seller signs a certification of non-foreign status under penalty of perjury, giving their name, address, and taxpayer identification number and stating that they are not a foreign person. If the seller signs it and the statement is true, you have no withholding obligation and you have a defense if it later turns out to be false.
That page usually travels with the broader package of things the seller swears to at settlement, which is worth understanding on its own terms: see The Affidavit of Title. If the seller cannot or will not sign the non-foreign certification, withholding applies and the rest of this article is your problem.
The practical failure is timing. Nobody asks the FIRPTA question in week one. It surfaces when the title agent assembles the closing package, which is late, which is why it feels like an emergency when it is really just a question that got asked in the wrong order. Ask it the day you go under contract.
Who writes the check, mechanically
In practice the title or escrow agent handles it. They hold fifteen percent of the gross price out of the seller’s proceeds at settlement and remit it to the IRS with the federal withholding forms, generally within twenty days of closing. You, as the buyer, sign as the withholding agent. You get a stamped copy back.
Two things follow from this that matter to you:
First, it does not change your cash to close. Not by a dollar. The withholding comes out of the seller’s side of the settlement statement. Your down payment, your closing costs, your prepaids, your loan amount: all unchanged. If you want to see where every line on that statement actually lands, how to read your closing statement walks the document line by line, and prorations at closing covers the adjustments that sit next to it.
Second, it does not change your DSCR. Your ratio is built from rent against the loan payment, taxes, insurance, and association dues. A seller side tax withholding appears nowhere in that calculation. If the mechanics of the ratio are not second nature yet, how to calculate DSCR is the place to start.
So why does this kill deals? Because of equity.
The number that decides whether the deal closes
Withholding is calculated on the gross price. The seller pays it out of net proceeds. When those two numbers collide, the closing does not happen.
Take a seller who owns a rental free of debt and is selling at 310,000 dollars. Fifteen percent is 46,500 dollars. Commissions, transfer taxes, and payoff of nothing at all still leave them well clear. That deal closes without drama.
Now take a seller who bought the same house three years ago at 285,000 dollars with a loan still sitting at 262,000 dollars. They sell at 310,000. Their payoff is 262,000. Commission at five percent is 15,500. Transfer taxes and recording fees take several thousand more, and those closing costs are bigger than most people model. Call the total deductions 281,000 dollars. The seller nets about 29,000 dollars. The required withholding is 46,500 dollars.
There is not enough money in the transaction. The seller has to bring roughly 17,500 dollars of their own cash to the table in order to sell a property they are already losing money on. Some do. Most do not, and the deal dies at day forty of a forty five day lock.
This is the single diligence item worth doing early. If the seller is a foreign person, you want a rough read on their equity before you spend money on an appraisal.
The withholding certificate, and why it is a rate lock problem
A seller whose actual tax liability is far below fifteen percent of the gross price can apply to the IRS for a withholding certificate reducing or eliminating the withholding. It is a legitimate, commonly used filing. The application goes in on or before the closing date, and the funds are held in escrow rather than remitted while the IRS considers it.
The problem is the clock. These applications routinely take ninety days or more. Sellers in the squeeze described above often reach for one, because it is the only path that lets them close without writing a check.
Here is what a ninety day delay does to you. Suppose you are financing 240,000 dollars on that duplex at 7.25 percent on a thirty year fixed. Principal and interest run about 1,637 dollars a month. Taxes are 350 a month, insurance 140. Your payment obligation is 2,127 dollars. Market rent is 2,400. Your ratio is 2,400 divided by 2,127, or 1.13. Comfortable.
Your lock runs forty five days. Ninety days of waiting means the lock expires and the loan reprices. Say the market has moved and you come back at 7.75 percent. Principal and interest go to roughly 1,719 dollars. Payment obligation becomes 2,209. The ratio on the same rent is 2,400 divided by 2,209, or 1.09.
On a program with a 1.10 minimum, you no longer qualify on the terms you applied for. Nothing about the property changed. You either put more money down to shrink the loan, accept a different structure, or walk. Run your own version of that before you agree to any extension using the DSCR deal calculator, because the half point is not hypothetical and the ratio does not care why you were late.
What the lender and the title company each care about
Your lender is not underwriting FIRPTA. There is no condition for it, no form in your file. What the lender needs is a settlement statement that balances and a title company willing to insure. Withholding is a seller proceeds line item, so as long as the money is there, the funding package looks normal.
The title side is where the attention sits. The agent is taking on the role of remitting federal money and is going to be careful about documentation, which means the closing package gets assembled more slowly. If you have not thought about who is actually running your settlement and how much that varies, who actually closes your loan is the background. The lender’s policy and your own owner’s policy are a separate question, covered in title insurance on a rental purchase.
One more thing, and it is not a small one. A transaction with an overseas seller, a withholding agent, an escrow holdback, and more wire instructions than a normal closing is exactly the profile that attracts fraud. Verify every set of instructions by phone to a number you looked up yourself. Wire fraud on a rental closing is worth ten minutes before you send anything.
What you should actually do
Ask whether the seller is a US person in the first week, in writing, through your agent. If the answer is no or unclear, get a rough equity picture before you order the appraisal. Build a contingency into the agreement that lets you extend or exit if a withholding certificate application is filed, rather than discovering at day forty that your only options are to wait or to lose your deposit.
Then expect the back end to be slower. Recording, the final policy, and the stamped withholding forms all trail the wire, which is normal but worth planning for: after the wire clears covers what shows up weeks later.
And do not let a seller talk you into a credit in exchange for absorbing their withholding. Seller paid items have their own rules and limits, described in seller concessions and credits. Taking on another party’s federal tax obligation is not a concession. It is a liability you cannot see the bottom of.
None of this is a reason to pass on a good duplex. It is a reason to ask one question early. The investors who lose money on these deals are not the ones who encountered a foreign seller. They are the ones who found out in week six.
If a borrower’s credit profile is also thin, the compressed timeline makes that harder to work around, which is its own conversation: see how a lender reads a thin credit file.
Have a deal with a foreign seller and a clock running? Get in touch or call 412-990-2941 and we will tell you honestly whether the timeline works.
FMC Capital is a Pittsburgh-based mortgage brokerage, NMLS #1840537. We place loans on rentals and flips for investors across Pennsylvania and additional states. Terms, rates, and program parameters described here vary by lender and are subject to change. Nothing in this article is tax or legal advice; FIRPTA questions should go to a CPA or attorney who handles cross border transactions.