Madad: The Construction Input Index Behind Israel's 20/80 Payment Plan (2026)
The Madad (Hebrew: מדד תשומות הבנייה, "Construction Input Index") is Israel's official measure of residential construction cost inflation, published monthly by the Central Bureau of Statistics. Off-plan apartment contracts customarily link the buyer's unpaid balance to the Madad: as the index rises, the deferred installments rise with it. On a typical 20/80 contract with delivery 3 to 5 years out, Madad linkage adds 5 to 15 percent to the buyer's total nominal cost. The mechanism is standard in Israeli off-plan, not negotiable away in most contracts, but the cap and base date are negotiable.
If you sign a 20/80 contract today, the deferred 80 percent does not stay at today's nominal price. It moves with the Madad. Here is what that means for a foreign buyer, and the three negotiation levers worth pushing for at contract stage.
Key Takeaways
- Madad is Israel's Construction Input Index, published monthly by the Central Bureau of Statistics, tracking the cost of materials and labor in residential construction.
- Off-plan apartment contracts customarily link unpaid balances to the Madad, so the buyer's deferred payments rise with construction inflation during the build.
- On a 20/80 contract with delivery in 3 to 5 years, a 3 percent annual Madad uplift compounds to roughly 9 to 16 percent on the deferred balance, materially changing the all-in cost.
- Three negotiation levers are routinely available: a Madad cap (typically 3 percent annual), a favorable base date (the earlier, the better), and front-loaded milestones that reduce the indexed balance over time.
What the Madad Actually Is
Madad Tashomot HaBniya (Hebrew: מדד תשומות הבנייה, “Construction Input Index”) is the official monthly index of Israeli residential construction costs, published by the Israel Central Bureau of Statistics (HaLishka HaMerkazit LeStatistika). It is one of three related indices the CBS publishes, alongside the general Consumer Price Index (Madad HaMechirim LeTzarchan) and the Cost of Living index. The Construction Input Index is the one that matters for off-plan apartment contracts.
The index tracks three categories of construction input: structural materials (concrete, steel, reinforcement bar, blocks, glass), finishing materials (tiles, plumbing fixtures, kitchen and bathroom fittings, paint), and labor at the wage rates Israeli builders pay site workers, technicians, electricians, plumbers, and supervisors. Each input is sampled monthly across a basket of representative Israeli construction projects, then weighted by typical residential-construction usage to produce a single index value. The current base is a defined 12-month rolling reference.
The Madad has been rising consistently for two decades, mirroring Israel's broader inflationary environment plus a structural premium driven by chronic labor shortages in Israeli construction. Annual increases in the 3 to 5 percent range are typical in ordinary years; the 2023-2024 period saw spikes above 6 percent. The Bank of Israel publishes the Madad alongside CPI, and foreign buyers can review the 12-month trailing index movement before signing any off-plan contract to estimate forward exposure.
How Madad Linkage Works in an Off-Plan Contract
Israeli off-plan apartment contracts customarily link the buyer's unpaid balance to the Madad from a defined contract base date forward. The mechanic is straightforward: each time the buyer owes a subsequent installment, the nominal installment amount is recomputed to apply the cumulative Madad increase from the base date to the installment payment date.
Take a concrete example. A foreign buyer signs a 20/80 contract for a ₪5,000,000 Tel Aviv apartment. The buyer pays ₪1,000,000 at signing (20 percent). The remaining ₪4,000,000 is due at delivery, projected for 4 years out. The contract specifies that the deferred balance is linked to the Madad from the contract date forward.
Assume the Madad rises a typical 3 percent per year over the 4-year build period. The cumulative index increase from contract date to delivery is approximately 12.55 percent (compounded). The ₪4,000,000 nominal balance at signing has become ₪4,502,000 at delivery. That ₪502,000 of additional cost was not visible on the original contract price; it accumulated invisibly through the index linkage.
| Contract price (signing date) | ₪5,000,000 |
| 20 percent paid at signing (not Madad-linked) | ₪1,000,000 |
| 80 percent deferred balance (Madad-linked from signing) | ₪4,000,000 |
| Cumulative Madad uplift over 4 years at 3% annual (compounded) | 12.55% |
| Actual deferred balance due at delivery | ₪4,502,000 |
| Additional Madad cost vs. contract price | ₪502,000 |
At recent ECB rates near 3.00 NIS-to-USD, the additional Madad exposure is approximately USD 167,000 on a USD 1.67 million apartment, or roughly 10 percent of the original total purchase. On a more aggressive Madad environment (5 percent annual), the same 4-year build produces a 21.55 percent uplift on the deferred balance, or approximately ₪862,000 of additional cost.
The mechanism is one-directional in practice. If the Madad falls (rare in Israel's inflationary environment, but possible), most off-plan contracts do not reduce the buyer's payments correspondingly. The index typically functions as a floor, not a true peg. Foreign buyers should read the contract carefully for this asymmetry and confirm whether downside protection is included or whether the linkage runs upside-only.
How Madad Interacts With the 20/80 Plan
The Madad linkage is structurally inseparable from Israel's 20/80 payment plan. The 20/80 plan defers 80 percent of the purchase price from signing to delivery; the Madad linkage applies to that deferred 80 percent. The two mechanisms together produce the characteristic Israeli off-plan cost shape: low upfront capital commitment, then a delivery-date payment that has been silently growing through the build.
The interaction has three important consequences for foreign-buyer planning. First, the buyer's effective annualized cost over the 4-year build is higher than the nominal contract price suggests. Modeling Madad-adjusted total cost is the only honest way to compare an off-plan apartment to a resale apartment of equivalent quality. Second, the buyer's currency exposure is asymmetric: the deferred balance accrues Madad in shekels, while the buyer typically holds reserves in USD, EUR, CAD, GBP, or AUD. A shekel that strengthens during the build compounds the Madad cost in home-currency terms; a shekel that weakens partially offsets it.
Third, milestone-based payment structures (where the buyer pays defined percentages at construction stages rather than back-loading 80 percent at delivery) materially reduce Madad exposure. Every shekel paid earlier is one shekel that escapes index uplift on the remaining balance. Top-tier Israeli developers will often quote a payment schedule with named construction milestones (foundation complete, structural shell, exterior cladding, interior fit-out, Tofes 4) as an alternative to pure delivery-pay. Foreign buyers asking about this structure are routinely accommodated when the developer is professional and the buyer's financial capacity is documented.
Three Negotiation Levers Worth Pushing For
The Madad linkage itself is standard in Israeli off-plan and rarely waivable. But three structural features of the linkage are negotiable, and foreign buyers should push for them at contract stage.
Lever 1: The Madad Cap
Some developers grant a Madad cap as a negotiated concession. A typical cap is 3 percent annual: if the actual Madad rises faster than 3 percent annual in any given year, the buyer pays the capped 3 percent and the developer absorbs the difference. Caps are particularly valuable in inflationary environments where the index can spike unexpectedly. Many top-tier developers will not grant Madad caps as a matter of policy; some will grant them in negotiated transactions, particularly for buyers committing early to pre-launch inventory. Always ask. The downside of asking is nothing.
Lever 2: The Base Date
The Madad linkage is computed from a defined contract base date forward. The earlier the base date, the less index uplift the buyer pays at delivery. Standard contract drafts default to a base date that matches contract signature; in some negotiations, the developer agrees to backdate the base by 30 to 90 days, capturing a small additional savings on the index movement during that backdated window. The savings are not large but they are real, and they compound across the build.
Lever 3: Front-Loaded Milestones
Replacing the pure 80-at-delivery structure with a milestone-based schedule (e.g., 20 at signing, 15 at foundation, 15 at structural shell, 15 at exterior cladding, 15 at interior fit-out, 20 at Tofes 4) dramatically reduces total Madad exposure. Each percentage paid earlier escapes index uplift on the remaining balance. The trade-off is buyer-side liquidity: front-loaded milestones require the buyer to fund payments over the build period rather than holding capital working elsewhere until delivery. For buyers with idle cash, this is the highest-impact lever available. For buyers with strong alternative uses for capital (active investments, business operations), the standard 20/80 plus Madad linkage may be more efficient even with the index uplift.
Foreign-Buyer Checklist Before Signing
Before signing any off-plan contract with Madad linkage, foreign buyers should confirm five points with their Israeli attorney.
- The base date. Confirm the date from which Madad linkage is computed. The earlier, the better. Standard is contract signature.
- The index version. Confirm the contract references the Construction Input Index (Madad Tashomot HaBniya), not the general Consumer Price Index. Some draft contracts ambiguously reference “the Madad” without specifying which; the Construction Input Index typically rises faster than CPI, so an ambiguous contract referencing CPI would actually benefit the buyer. Most Israeli developers will draft to the Construction Input Index explicitly.
- The cap, if any. Confirm whether the contract includes a Madad cap. If yes, document the cap rate and the cap mechanic (annual cap vs. cumulative cap).
- The payment schedule. Map the full payment schedule and identify which payments are Madad-linked and which are not. The 20 percent at signing is typically not linked. Subsequent installments are. Confirm milestone payments are linked from the contract base date, not from each milestone date (the latter would be more favorable to the buyer; check carefully).
- The downside symmetry. Read the contract carefully for downside protection. If the Madad falls, do the buyer's payments fall correspondingly? Most contracts do not include this; some do. The difference matters in inflationary environments where peak index values may not hold.
How to Track the Madad Yourself
The Central Bureau of Statistics publishes the Madad monthly, typically on the 15th of the month following the reference month. The series is freely available at cbs.gov.il in both Hebrew and English. The Bank of Israel republishes the series alongside other inflation indicators at boi.org.il.
Foreign buyers planning off-plan acquisitions should track the trailing 12-month Madad before signing and project the trailing-12 trend forward as a conservative estimate of build-period exposure. The trailing 12-month figure is the single most useful data point for negotiating the cap and modeling the all-in cost. Israeli counsel will typically pull this number as part of contract review; foreign buyers should independently verify against the CBS published series to ensure their attorney's exposure model uses current data.
For active buyers running multiple parallel transactions, the CBS publishes the Madad in machine-readable formats (CSV, Excel) suitable for automated tracking. Some Israeli legal firms maintain Madad dashboards for their off-plan-buying clients. Ascend tracks Madad and trailing-12 projections for every off-plan transaction we facilitate, and we run the all-in cost model against current data before our clients sign.
Where Madad Linkage Goes Wrong
From the inside of dozens of off-plan transactions per year, three patterns produce material Madad cost surprises for foreign buyers.
First, underestimating compounding. A 3 percent annual Madad does not produce a 12 percent uplift over 4 years (3 × 4); it produces 12.55 percent compounded. Over 5 years at 3 percent annual, the cumulative uplift is 15.93 percent. Foreign buyers regularly model linear instead of compound uplift and arrive at delivery with a 30 to 50 percent larger surprise than they expected.
Second, ambiguity about which Madad applies. Some draft contracts reference “the Madad” without specifying whether the Construction Input Index, the Consumer Price Index, or the Construction Input Index minus Labor (a less common variant) applies. The variance between these indices over a 4-year build can be 3 to 8 percentage points on the deferred balance, or hundreds of thousands of shekels on luxury price points. Always confirm the specific index name and its CBS series code in the contract.
Third, milestone payments computed against the wrong base. Some contracts apply Madad linkage to each milestone payment from its own due date, not from the contract base date. This produces a much smaller index uplift on each individual payment, but the cumulative effect across many milestones can still be material. Foreign buyers should map the full Madad uplift on each payment and total the additional cost; some apparently buyer-favorable milestone structures actually produce larger total Madad exposure than back-loaded 80-at-delivery contracts.
Citations and Primary Sources
Primary Sources Referenced
Israel Central Bureau of Statistics, Construction Input Index series, cbs.gov.il. · Bank of Israel, Inflation Indicators, boi.org.il/en/markets/inflation-statistics/. · Sale Law (Apartments) 1973 and Sale Law (Apartments) (Assurance of Investments) 1974 (background statutes governing off-plan apartment sales including index-linkage practice).
Frequently Asked Questions
The Madad is Israel's Construction Input Index, published monthly by the Central Bureau of Statistics, tracking the cost of materials and labor in residential construction. Off-plan apartment contracts customarily link the buyer's unpaid balance to the Madad, so the deferred installments rise with construction inflation during the build.
On a 20/80 contract with delivery in 3 to 5 years and a 3 percent annual Madad increase, the cumulative uplift on the deferred 80 percent balance is approximately 9 to 16 percent (compounded). On a 5 million shekel apartment, that is roughly 360,000 to 640,000 shekels of additional cost not visible on the original contract price.
Sometimes. A 3 percent annual Madad cap is the most common negotiated concession. Top-tier Israeli developers will not always grant Madad caps as a matter of policy, but many will in negotiated transactions, particularly for buyers committing to pre-launch inventory. Always ask. The downside of asking is nothing.
No. The Madad most relevant to off-plan apartment contracts is the Construction Input Index (Madad Tashomot HaBniya), which tracks construction materials and labor. The general Consumer Price Index (Madad HaMechirim LeTzarchan) is a different index that tracks consumer goods and services. Construction Input Index typically rises faster than CPI in Israel's environment.
Most off-plan contracts do not reduce the buyer's payments if the Madad falls; the linkage typically functions as an upside-only adjustment. Confirm in contract review with your Israeli attorney; some contracts do include downside symmetry, but it is not standard.
Madad linkage is shekel-denominated inflation on the deferred balance. Currency exposure is the shekel-to-home-currency rate movement between contract date and delivery date. The two compound: a buyer holding USD whose deferred balance accrues 12 percent Madad uplift while the shekel strengthens 10 percent against USD effectively pays 23 percent more in USD terms than the original contract price suggested. Both should be modeled before signing.
Often yes, for buyers with available capital. Milestone schedules pay defined percentages at construction stages (foundation, shell, exterior cladding, fit-out, Tofes 4) rather than back-loading 80 percent at delivery. Each percentage paid earlier escapes Madad uplift on the remaining balance, reducing total cost. The trade-off is buyer-side liquidity: milestone payments require the buyer to fund over the build period rather than holding capital working elsewhere. For buyers with idle cash, milestone structures are the highest-impact Madad-reduction lever available.
The Israel Central Bureau of Statistics publishes the Construction Input Index monthly at cbs.gov.il, typically on the 15th of the month following the reference month. The Bank of Israel republishes the series at boi.org.il alongside other inflation indicators. The trailing 12-month figure is the single most useful data point for off-plan contract review and Madad cap negotiation.
This article is general informational content about the Israeli Construction Input Index (Madad) and its application to off-plan apartment contracts. It is not legal or tax advice for any specific transaction. Madad linkage mechanics, contract base dates, cap availability, and milestone payment structures all depend on the specific off-plan developer, project, and contract draft. Before signing any off-plan contract, retain Israeli counsel admitted to the Israel Bar to review the full Madad linkage clause and to model the projected delivery-date cost against current trailing-12 index data. Netanel Hershtik is admitted to the New York State Bar and holds an LLB in Israeli law; he is not a substitute for transactional Israeli counsel on a specific off-plan acquisition.