For years, one of the most attractive slogans in Israeli real estate sounded almost too good to question, buy a new apartment now, pay only 10% or 20% upfront, and bring the rest when the keys are ready.

For many buyers, especially Americans watching Israeli prices rise from abroad, the pitch felt like a rare opening. You could lock in a shekel price, keep most of your capital in the U.S., avoid taking a full mortgage right away, and hope that by delivery the apartment would be worth more. For Israelis, it created a path into projects that otherwise felt financially impossible. For developers, it helped keep sales moving while interest rates were high, construction costs were rising, and unsold inventory was piling up.

But the deal was never really “cheap.” It was deferred risk.

That risk is now moving to the center of Israel’s housing story. The Bank of Israel has tightened its treatment of projects that rely heavily on deferred-payment contracts, warning that deals where buyers postpone large portions of the price until delivery can create elevated risk for banks, developers, and purchasers. Under the temporary rules, project credit is treated as higher risk when more than 25% of a project’s contracts defer 40% or more of the purchase price until delivery, while developer-subsidized bullet and balloon loans are limited to 10% of quarterly housing-loan execution. The directive is currently set to remain in effect through the end of 2026.

The 20/80 model was not just a clever payment plan. It became a pressure valve for an entire market. It allowed buyers to sign before they were fully financed. It allowed developers to report sales without collecting most of the money. And it allowed both sides to assume that the future would be easier than the present.

Israel’s housing market is carrying record supply. At the end of January, about 86,290 new apartments remained unsold, the highest level recorded, with Jerusalem holding roughly 10,340 unsold units, Tel Aviv-Yafo about 9,650, Bat Yam 5,059, and Haifa 4,246. At the current sales pace, that represented 31.4 months of supply, meaning the market would need more than two and a half years to absorb the unsold stock if no new supply were added.

Prices are no longer moving in one clean direction. Israel’s latest housing data showed apartment prices rising 0.3% in the February-March comparison after two months of declines, but still down 1.2% year-over-year. New apartment prices rose 0.4% including subsidized government transactions, but excluding those deals, new-home prices fell 0.3% for the period and 3.8% over the year. The national average apartment price stood around NIS 2.33 million in the first quarter.

For buyers, the guide begins with understanding what a 20/80 deal actually does. It does not make the apartment cheaper. It changes when the pain arrives. Instead of paying gradually through construction or taking a mortgage earlier, the buyer pays a small portion at signing and leaves the largest payment for handover. That can be useful for a buyer with strong cash flow, a verified mortgage plan, and a clear currency strategy. It can be dangerous for someone who is only able to buy because the first payment is low.

For Americans, the risk is sharper because the contract is usually in shekels while their wealth and income may be in dollars. The shekel has strengthened dramatically, and the Bank of Israel listed the representative dollar rate at NIS 2.907 on May 21. A buyer who expected to bring dollars later can find that the same shekel balance costs far more in dollar terms than it did when they first signed.

Take a simple example. If an American signs for a NIS 3 million apartment and leaves NIS 2.4 million for delivery, that final payment costs about $667,000 when the dollar is at 3.60 shekels. At 2.907, it costs about $826,000. The apartment did not become more expensive in shekels. But for a dollar buyer, the final bill jumped by roughly $160,000 before mortgage terms, taxes, upgrades, legal fees, or moving costs.

That is the part many buyers missed. A 20/80 deal can feel like protection against rising prices, but it can expose the buyer to interest-rate risk, currency risk, mortgage-approval risk, construction-index risk, and resale risk all at once. If the buyer cannot close, the low deposit that made the deal easy to enter may become the money they lose to escape.

For Israelis, the danger is different but just as real. The issue is not the dollar. It is affordability at delivery. A family may sign while the monthly payment is still theoretical, assuming rates will fall or income will rise. The Bank of Israel did cut the interest rate to 3.75%, but mortgages are still far more expensive than they were during the cheap-money years, and banks still examine repayment ability.

That means the first question is not “How much do I need today?” It is “What happens on the day the developer calls for the final payment?” Buyers should know the exact remaining balance, the maximum mortgage they can realistically receive, the monthly repayment under conservative assumptions, the purchase tax due, the likely linkage to the construction input index, and the cost of extras that are almost never included in the headline price.

Legal protection also needs to be understood correctly. Israel’s Sale Law gives buyers important safeguards. A developer generally may not collect more than 7% of the apartment price unless the buyer receives one of the permitted protections, such as a bank guarantee or insurance. But that protects payments from certain developer failures. It does not protect a buyer from overpaying, failing to qualify for financing, getting squeezed by currency moves, or discovering that the resale market is weaker than expected.

For foreign buyers, financing must be checked early, not imagined later. Israeli mortgage rules are very different from the U.S. market, and foreign citizens are commonly treated more conservatively. Mizrahi-Tefahot notes that a buyer eligible as an Israeli citizen or oleh can reach up to 75% loan-to-value instead of 50% as a foreign citizen, while standard Israeli mortgage financing is generally up to 75% for first-home buyers, 70% for replacement-home buyers, and 50% for those who already own a home in Israel.

Taxes matter too. A foreign resident is generally taxed like an Israeli investor rather than like an Israeli first-home buyer, meaning the purchase-tax burden can be much heavier. Buyitinisrael notes that foreign residents cannot use the single-residence benefit unless they become Israeli tax residents within the relevant period, while new immigrants may have separate benefits depending on their status and timing.

So what should a serious buyer do before signing?

First, price the apartment as if you had to close today, not as if the market improves in two years. Second, get serious mortgage guidance before signing, not after. Third, convert the deferred shekel balance into dollars, pounds, or euros at several worse exchange rates and see whether the deal still works. Fourth, ask exactly what part of the price is linked to the construction input index and what is not. Fifth, compare the project against actual unsold supply in that city, because a “limited opportunity” in a building with heavy nearby inventory may not be limited at all.

Buyers should also negotiate differently. In a high-inventory market, the headline price is only one part of the deal. Developers may resist official price cuts because they do not want to damage earlier sales or bank valuations. That is why discounts often appear as payment terms, free parking, storage rooms, upgraded kitchens, waived linkage, legal-fee help, or quiet reductions offered through sales offices. The buyer’s job is to convert every perk into shekels and compare it with the real market price.

A 20/80 deal can still make sense. It can work for a buyer with liquid capital, a strong mortgage file, a real need for the apartment, and enough cash to handle a bad exchange-rate move or a delay. It can work in a location with genuine demand and limited competing supply. It can work when the developer is strong, the bank guarantee is clean, the delivery timeline is realistic, and the buyer is not relying on flipping the apartment before closing.