Your mortgage is a dollar liability to the IRS, whatever the loan document says
If you hold a US passport, US rules measure your משכנתא (Mashkanta) in dollars, not shekels. Clear the debt when the shekel is weaker than it was on your drawdown date and you have discharged it for fewer dollars than you borrowed. That difference is a gain to the United States. Israel taxes none of it.
No Israeli borrower has ever had to think about this, and that is the problem. Your lender computes your balance in shekels, your שער חליפין (Schaar Chalafin) never enters their calculation, and nobody at the branch has reason to raise a US tax question. The charge is invisible from the Israeli side and arrives on a US return years later.
General information, not advice
Scope: PFIC is not what this article is about
This page is about a debt you owe, not an asset you hold, and it discusses no pooled investment vehicle of any kind. The PFIC regime and its Form 8621 obligation8 are therefore explicitly out of scope here. PFIC matters enormously to US-citizen olim, and Meidahon covers it in the investing section, but it has no bearing on discharging a mortgage.
The US side: how does a gain arise on money you paid back?
It arises because the two ends of the loan are measured on different days at different rates. Under US law, becoming the obligor under a debt instrument denominated in a currency other than your functional currency is itself a taxable event category1, and your functional currency as a US individual is generally the dollar4.
The computation is mechanical. The regulations tell the obligor to translate the principal into dollars at the spot rate on the day they became the obligor, then subtract the principal translated at the spot rate on the day payment is made or the obligation is extinguished2. A positive result is an exchange gain. Read plainly: borrow when the shekel is strong, repay when it is weak, and you owe US tax on the gap.
Note the direction, because it surprises people. A weaker shekel produces the US gain, and that is the same move that makes your Israeli salary worth less in dollars.
A worked example, in both currencies
The IRS publishes yearly average shekel rates, which are a reasonable illustration even though an actual filing uses the spot rate on each relevant date5. The published averages are 3.232 shekels per dollar for 2021 and 3.701 for 20245.
- 2021, drawdown. You take a mortgage of NIS 1,200,000. At 3.232, that is about $371,287 of borrowed value in US terms.
- 2024, sale and payoff. The outstanding principal is NIS 1,000,000. At the drawdown rate that principal was worth about $309,406.
- What it costs you to clear it. NIS 1,000,000 at 3.701 is about $270,197.
- The US exchange gain. $309,406 minus $270,197, or roughly $39,209, on a payment that cost you exactly the shekels the contract said it would.
Your Israeli paperwork records NIS 1,000,000 repaid and nothing else, because in shekel terms this gain does not exist. The NIS 200,000 of principal you amortised along the way was measured the same way, at whatever rate applied on each payment date.
The US side: which events count as a discharge?
Recognition is tied to the date principal is paid, or the obligation is transferred or extinguished, including a deemed disposition that results from a material change in the terms of the instrument2. That last clause is the one that catches refinancing. A modification of a debt instrument is treated as an exchange of the original for a modified one when the modification is significant3, and an exchange is a discharge of the old loan.
| What you do | Does it discharge the shekel debt? | What to watch |
|---|---|---|
| Pay the loan off in full, from savings or a gift | Yes, entirely, on the payment date | The whole remaining principal is measured at once, so this is the largest single event you control |
| Clear the balance out of the sale proceeds | Yes, entirely, on the completion date | Lands in the same tax year as the property sale itself, which is the sequencing trap below |
| Refinance into a new loan | Where the change is significant enough to be treated as an exchange, yes3 | Whether a given restructuring crosses that line is technical. Ask before you sign, not after |
| Make a large voluntary prepayment | Yes, to the extent of the principal actually paid | In Israel this may also trigger an עמלת פירעון מוקדם (Amlat Pira'on Mukdam), which is a separate Israeli cost, not a tax |
| Pay your ordinary monthly instalment | Yes, but only on the principal slice of that instalment | Each payment is measured on its own date, so the amounts are small and scattered rather than absent |
| Port the loan to a new property (גרירת משכנתא (Grirat Mashkanta)) | Not obviously, since the original loan is intended to survive | Porting is designed to keep the existing terms, so the question is whether anything changed enough to count as a modification3 |
Ordinary monthly payments are not free of the rule, they are simply spread thin. What concentrates the exposure is a single large discharge, and every large discharge is something you schedule.
The US side: does the small personal-transaction relief rescue this?
No, for two separate reasons, and it is worth knowing both. The relief in the statute excludes gain on a personal transaction only where nonfunctional currency is disposed of, and even then it stops applying once the gain that would otherwise be recognised exceeds $2001.
First, the shape is wrong: a mortgage payoff is the extinguishing of a debt you owe, not a disposal of currency you hold. Second, and decisively, the ceiling is $200. The worked example above produced roughly $39,209, which is the $200 threshold crossed nearly two hundred times over. Nothing about a mortgage is small enough for a de minimis rule built for holiday money.
One technical point deserves an honest rather than a confident answer. The statute also says its preceding provisions do not apply to a personal transaction by an individual1, and the regulations sidestep the question by assuming, for their examples, that transactions involving individuals are inside the regime2. That unsettled edge affects the character of the gain and how it is reported, not whether a large movement can be ignored.
The Israeli side: what does Israel tax here?
Nothing about the currency. Your loan is denominated in shekels, you are an Israeli resident measuring in shekels, and NIS 1,000,000 repaid against NIS 1,000,000 borrowed produces no gain in Israeli terms. There is no Israeli exchange difference to report, no Israeli form that captures it, and no Israeli tax event in the repayment itself9.
If the payoff happens because you sold the apartment, Israel does have something to tax, but it is a different thing entirely: מס שבח (Mas Shevach) on the appreciation of the property, computed in shekels on the shekel sale price against the shekel acquisition cost9. Your mortgage is not part of that computation. Exemptions and reliefs on a residential sale are a separate subject, covered elsewhere on Meidahon.
The only Israeli cost attached to an early discharge is commercial rather than fiscal: the early-repayment fee your lender may charge. It belongs in a different column of your arithmetic from the US tax.
The treaty side: why is there nothing to offset?
Because a foreign tax credit offsets foreign tax you actually paid, and Israel charged you none. The US allows the credit only for income taxes imposed on you by a foreign country6, and the US-Israel treaty says the same thing in its own words: the United States gives its citizens and residents a credit for the appropriate amount of taxes paid or accrued to Israel7. Zero Israeli tax paid means zero credit available.
Nor does the treaty switch the charge off. Article 6(3) states that, with narrow exceptions, a Contracting State may tax its residents and its citizens as if the Convention had not come into effect7. That is the saving clause, and it is why holding a US passport keeps you inside the US system no matter how many years you have been living in Israel.
This is the worst structural shape a cross-border charge can take. Double taxation has a remedy. Single-country taxation has none, and the only lever left is timing.
Which passport does this apply to?
How large is the gain in each scenario?
The grid below takes one representative case: NIS 1,000,000 of principal outstanding, drawn when the rate was 3.232 shekels per dollar5. Figures are rounded and illustrative.
| Shekel since drawdown | Refinance (if it counts as an exchange) | Early payoff from savings | Payoff out of the sale |
|---|---|---|---|
| Stronger (3.232 to 3.10) | No US gain. A loss of roughly $13,200 arises instead | No US gain. Same loss of roughly $13,200 | No US gain on the debt, though the property sale is measured separately |
| Unchanged (3.232) | Nil | Nil | Nil on the debt |
| Weaker (3.232 to 3.701) | US gain of roughly $39,200, triggered by the restructuring | US gain of roughly $39,200, in a year you chose and could have chosen differently | US gain of roughly $39,200, stacked on the same year as the sale |
Read the left column first. Whether you face a charge at all is decided by the exchange rate on a date already in the past. What you still control is the second date.
The sequencing trap: two US charges in one year
Selling the apartment and clearing the mortgage out of the proceeds are one transaction to you and two separate measurements to the IRS. The property produces its own US result, computed by translating the purchase cost and the sale price into dollars on their respective dates4. The debt produces the exchange result described above2. Both land in the same US tax year.
The uncomfortable case is a shekel that weakened between purchase and sale, since that one move can shrink the dollar gain on the apartment while creating the dollar gain on the mortgage. Olim assume the two cancel out. They do not net automatically, and US relief attached to a main home does not extend to the debt that financed it.
What newcomers get wrong
- Assuming a shekel loan is a shekel-only problem. The loan is in shekels. Your US filing obligation is not, and it does not pause because you left the United States.
- Expecting the Israeli lender to raise it. They will not, and there is nothing wrong with that. It is not an Israeli tax question, so it is not on their form.
- Assuming a refinance is neutral because the debt continues. A sufficiently significant modification is treated as an exchange of the old instrument for a new one3, which discharges the old one.
- Reaching for the foreign tax credit. The credit requires Israeli tax actually imposed6. On this item there is none, so there is nothing to credit.
- Reading the currency backwards. A strong shekel produces a loss on the debt, not a gain. The instinct runs the wrong way here.
- Not recording the drawdown rate. Reconstructing a spot rate for a date years ago is far harder than writing it down on the day.
What should you actually do before you refinance or prepay?
The decision procedure is short, and the first step decides whether the rest matters at all.
- Find the rate on your drawdown date. The Bank of Israel publishes the representative shekel exchange rate10. Pull the figure for the day your loan was actually drawn, not the day you signed the offer, and keep it with your mortgage file.
- Compare it to today. A weaker shekel now than then means a discharge today creates a US gain. A stronger shekel means it creates a loss.
- Size it before you commit. Divide the outstanding principal by the drawdown rate, divide it again by today's rate, and subtract. That is the order of magnitude you are deciding about.
- Check the Israeli cost separately. Ask your lender for the early-repayment fee quotation. It is an Israeli commercial charge and belongs in a different column of your arithmetic from the US tax.
- Take both numbers to a cross-border adviser before you sign. The character of the gain, its interaction with a sale in the same year, and whether a specific restructuring counts as an exchange are the questions a US-Israel specialist exists to answer. That is the one action to take from this article, and taking it before the signature is the whole point.
Knowledge Check
You are a US citizen living in Israel. You drew a shekel mortgage when the rate was 3.23 shekels per dollar. The rate today is 3.70. You are deciding whether to pay the loan off early. What does the currency move mean for your US position?
For a US citizen or green-card holder, an Israeli shekel mortgage is a foreign-currency liability measured in dollars. US rules translate the principal into dollars at the spot rate on the date you became the obligor and again on the date principal is paid or the obligation is extinguished, and tax the difference as an exchange gain. If the shekel has weakened since your drawdown date, discharging the loan costs fewer dollars than it was worth when you borrowed, and a gain arises. Payoff, clearing the balance out of a sale, and a refinance significant enough to be treated as an exchange of the old loan for a new one are all discharge events. The personal-transaction relief in the statute is capped at $200 and is written around disposing of foreign currency, so it does not cover a mortgage-scale movement. Israel taxes none of this, which means there is no Israeli tax to claim as a foreign tax credit.
Because your functional currency as a US individual is generally the dollar, and becoming the obligor under a debt instrument denominated in another currency falls inside the foreign-currency rules of the Internal Revenue Code. The regulations tell the obligor to translate the principal into dollars at the spot rate on the date they became the obligor, then subtract the principal translated at the spot rate on the date payment is made or the obligation is extinguished. Everything else follows from that arithmetic.
On the mortgage specifically, a weaker shekel creates the US gain. Fewer dollars are needed to buy the shekels that extinguish the debt, so you discharged for less than you borrowed in dollar terms. This runs against instinct, because a weaker shekel simultaneously makes your Israeli salary worth less in dollars. The tax lands at the moment the currency feels worst.
Recognition is tied to the date principal is paid, so the principal slice of each instalment is measured on its own date. In a normal amortising loan those amounts are small and spread across many dates rather than absent. What concentrates the exposure into one number is a single large discharge: a full payoff, a large voluntary prepayment, or clearing the balance out of a sale.
It can be. A modification of a debt instrument is treated as an exchange of the original instrument for a modified one when the modification is significant, and the foreign-currency rules recognise gain on a deemed disposition arising from a material change in terms. Whether a specific restructuring crosses that line is technical and fact-dependent, which is exactly why the question belongs in front of a cross-border adviser before you sign rather than after.
No, on two counts. The exclusion is written around disposing of nonfunctional currency, and extinguishing a debt you owe is a different shape of transaction. Even setting that aside, the exclusion stops applying once the gain that would otherwise be recognised exceeds $200, and a mortgage-scale currency movement runs to tens of thousands of dollars. It is a de minimis rule sized for holiday money.
Not on this item, because a foreign tax credit relieves foreign income tax actually imposed on you, and Israel imposes none here. The loan is in shekels, you measure in shekels as an Israeli resident, and no Israeli gain exists to tax. The US-Israel treaty gives a credit for taxes paid or accrued to Israel, so zero Israeli tax produces zero credit. This is a single-country charge, which has no double-tax remedy.
Not from this. The treaty contains a saving clause at Article 6(3) under which a Contracting State may tax its residents and its citizens as if the Convention had not come into effect, subject to narrow exceptions. That clause is why a US passport keeps you inside the US system regardless of how long you have lived in Israel. The treaty relieves double taxation; it does not relieve taxation by one country alone.
Then two separate US measurements land in the same tax year: the property result, computed by translating the purchase cost and the sale price into dollars on their respective dates, and the exchange result on the debt. They are not automatically netted against each other, and US relief attached to a main home does not extend to the loan that financed it. Israel meanwhile taxes the property appreciation under mas shevach in shekels, and taxes the mortgage repayment not at all.