IsraelLawMany couples who did not sign a prenuptial agreement find themselves, years into their marriage, needing a formal financial arrangement. Perhaps one spouse received a substantial inheritance. Perhaps a business has grown far beyond what anyone anticipated. Perhaps the couple moved to Israel from abroad and only then realized that Israeli default property law would apply very different rules than their home country. For all of these situations, Israeli law offers a remedy: the postnuptial agreement.
The catch — and it catches a lot of people — is that signing the document alone accomplishes nothing in Israel. A postnuptial agreement that has not been submitted to and approved by the Family Court carries no legal weight. This court-approval requirement is what sets Israeli postnuptial law apart from most other jurisdictions, and skipping it is the single most common mistake expat and immigrant couples make when trying to protect themselves.
1. What Is a Postnuptial Agreement in Israeli Law?
A postnuptial agreement (heskem mamon bein bne zug, הסכם ממון בין בני זוג) is a written financial contract between married spouses. It can cover the division of property on divorce or death, identify which assets belong exclusively to one spouse, establish separate financial arrangements, and set out how future earnings or acquisitions will be treated.
The legal authority for such agreements comes from Section 2 of the Property Relations Between Spouses Law 5733-1973. This one statute governs virtually all financial arrangements between married couples in Israel, regardless of whether the parties are Israeli citizens, new immigrants, or foreign nationals living in Israel or simply owning Israeli assets. Section 2(a) allows a couple to sign a financial agreement before the wedding, with a notary's certification being sufficient to make it enforceable. Section 2(b) is different: a couple signing during marriage must go further. The agreement must be submitted to the Family Court (Beit Mishpat L'Inyanei Mishpacha) or, where both parties are Jewish and elect it, the Rabbinical Court (Beit Din HaRabbani), for formal approval.
An agreement signed by both spouses, certified by a notary, and witnessed by two people — but not submitted for court approval — is void under Israeli law. Courts have repeatedly refused to enforce such agreements in divorce proceedings, leaving couples with the very default rules they hoped to avoid. Court approval is not a formality; it is the mechanism that gives the agreement its legal life.
The law applies to couples who married in Israel and to those who married abroad and later established a connection to Israel — whether by living here, owning property here, or both. It covers all marriages that took place after 1 January 1974, when the statute came into force.
2. The Resource-Balancing Default Rule
The default rules are where the trouble starts.
Under the Property Relations Law's resource balancing principle (izun mishavim, איזון משאבים), each spouse accumulates property during the marriage in their own name. There is no automatic joint ownership of marital assets as you find in some civil law countries. Each spouse controls their own bank accounts, salaries, and investments throughout the marriage. When the marriage ends — by divorce or by death — each spouse (or their estate) is entitled to receive half the value of all assets accumulated during the marriage.
Several categories of asset are excluded from this calculation under Section 5 of the law. Assets received as a personal gift or inheritance during the marriage are excluded. So are assets owned before the marriage began. Compensation for personal injury, certain pension components, and property one spouse explicitly received as separate under a prior agreement are also outside the pool. Everything else — salaries invested, businesses built, real estate purchased, securities accumulated — is subject to the 50/50 split.
For couples where one spouse earns significantly more, or where a business or inherited property has appreciated dramatically, the default rule can produce outcomes that feel deeply unfair — or, conversely, leave one spouse financially exposed in ways they never anticipated. A court-approved postnuptial agreement allows spouses to replace that default with whatever arrangement they negotiate.
Section 5 of the Property Relations Law excludes inherited assets from resource balancing, but it does not protect those assets if they are later "mixed" with marital funds. If the proceeds from an inherited apartment are deposited into a joint account and then used to purchase a family home, a court may treat the resulting property as a marital asset subject to sharing. A postnuptial agreement that explicitly traces and carves out inherited assets by reference to the original inheritance and its source prevents that argument from arising and gives the judge a clear factual record to rely on.
3. What Can Go in a Postnuptial Agreement
Israeli law gives spouses wide latitude here. Couples use postnuptial agreements for different purposes. Some want to identify pre-marriage assets — a house, a brokerage account, a company stake — as belonging to one spouse alone, regardless of how those assets were used during the marriage. Others need to ring-fence overseas real estate, foreign retirement funds, or investment portfolios from Israeli resource balancing. Inherited property is another common subject: the agreement can confirm an inherited apartment or trust distribution stays separate even if it appreciates significantly. Business owners often want to protect a company shareholding from division, or at least define how it would be valued. Debt can be allocated too — one spouse's student loans or business liabilities do not have to become the other's problem. And where both spouses already have some sense of what a separation would look like, the agreement can pre-agree on a maintenance structure or what happens to a jointly owned home.
There are things a postnuptial agreement cannot do. It cannot waive child support obligations. Israeli law treats child support as a right of the child — not the parent — governed by the Child Support Law and Religious Courts jurisdiction, and no private contract between parents can override it. Equally, a court that finds the agreement unconscionable or that one spouse signed under duress, without understanding its content, or while suffering from diminished capacity, can refuse to approve it or can annul an earlier approval.
4. Getting Court Approval
The Family Court approval process under Section 2(b) involves four steps, and the order matters.
Step 1: Draft the agreement. Both spouses work with an attorney — ideally each with their own — to produce a written document in Hebrew. If either spouse does not read Hebrew, a certified translation should accompany the filed document. The agreement should be specific: vague references to "overseas assets" or "the business" tend to generate disputes later. Name the assets, provide registration numbers or account details where possible, and state exactly what each party is giving up or retaining.
Step 2: Sign. Both spouses sign, each confirming that they reviewed the document, understood it, and signed voluntarily. Courts pay close attention to whether each party had access to independent legal advice. The law does not make independent representation mandatory, but agreements where one attorney drafted the document for both sides receive greater scrutiny.
Step 3: File the application. The couple's attorney files an application for approval (bakshat ishur heskem mamon) with the Family Court in the district where the couple lives. The application includes the signed agreement, a declaration by each spouse affirming voluntary signature, and the court filing fee. If both parties are Jewish and prefer a religious forum, the Rabbinical Court can approve the agreement instead, provided the matter falls within its jurisdiction.
Step 4: Court hearing. The judge schedules a brief hearing to ask each spouse, separately or together, whether they understood the agreement and signed without pressure. If satisfied, the court stamps and returns the approved agreement. The original document, bearing the court's seal and file number, is the enforceable instrument. Keep it safely.
As of 2026, the Family Court filing fee for a postnuptial agreement approval application is approximately NIS 1,600 (updated annually by the Ministry of Justice under court tariff regulations). Once filed, the case is assigned to the Family Court in the couple's district — Tel Aviv, Jerusalem, Haifa, Beer Sheva, or the relevant regional court. From filing to a stamped approval typically runs 6 to 12 weeks, though some district courts move faster. Attorney fees for drafting and the court hearing vary between NIS 5,000 and NIS 15,000 depending on complexity.
5. What Expats and Foreign Nationals Need to Know
Foreign nationals and expats run into complications that Israelis who have always lived here typically don't face.
The most immediate concern is usually cross-border property. A foreign national who owned an apartment in London or New York before moving to Israel, or who inherited property from a parent abroad, needs to ensure that Israeli resource-balancing rules do not reach those assets in a divorce. A postnuptial agreement that identifies the overseas property by title reference or account number gives an Israeli divorce judge a document to work from, rather than having to decide the question from scratch.
Home-country default rules are another source of confusion. Many countries run community property systems (Spain, California, some other US states), strict separate property systems (England and Wales in many circumstances), or hybrid regimes that bear little resemblance to the Israeli model. When an immigrant couple moves to Israel, they often assume their existing financial arrangements carry legal force. They don't. Israeli law applies from the date the couple establishes a relevant connection to Israel. A postnuptial agreement that maps their existing arrangements onto the Israeli framework prevents a judge from reconstructing their intentions from foreign documents of uncertain weight.
Pension funds are a third problem area. An expat who accumulated a pension in another country before Aliyah and then joins the Israeli pension system may find both funds contested in a divorce. Under Section 5(a) of the Property Relations Law, pension rights accumulated during the marriage are subject to resource balancing. Foreign pension rights accumulated before the marriage are not, in principle — but proving which is which requires actuarial evidence and years of bank records. A postnuptial agreement that maps each pension to a specific period and jurisdiction short-circuits that argument.
New immigrants (olim) face a related issue with Aliyah benefits: the sal klita (absorption basket), ten-year tax exemptions, reduced purchase tax on a first home. If one spouse made Aliyah and the other did not, or if both arrived at different times, the financial picture is uneven. A postnuptial agreement can specify how those benefits are treated if the marriage later dissolves, heading off a dispute over whether the Aliyah tax savings on an apartment purchase constituted a joint marital asset.
The Population and Immigration Authority (Misrad HaPnim) records each immigrant's Aliyah date, and the Israel Tax Authority records when Oleh tax benefits were claimed and for which assets. In divorce disputes, courts have seen cases where the absence of a postnuptial agreement led to multi-year litigation over how to value a single apartment purchased partly with Oleh purchase-tax savings and partly with pre-Aliyah funds held in a foreign account. A postnuptial agreement that names the apartment, specifies what portion of the purchase price came from pre-existing separate assets, and states that the Oleh benefits belong to the immigrating spouse creates a clean record that can resolve the dispute in a single court session.
6. What Happens Without a Postnuptial Agreement
Without a court-approved postnuptial agreement, the default rules of the Property Relations Law apply to all assets accumulated during the marriage. Informal understandings between spouses carry no legal weight. It does not matter whose name is on the title or the bank account, or who earned more over the course of the marriage.
The resource-balancing right crystallizes on the date of divorce or death. In a contested divorce, either spouse can file a resource-balancing claim in the Family Court. The court will typically appoint a forensic accountant to value the marital estate. Accountant fees in complex cases — particularly those involving businesses, multiple properties, or overseas assets — commonly run between NIS 20,000 and NIS 60,000, and the process adds 12 to 24 months to proceedings that are already emotionally draining.
Property titles do not determine ownership for these purposes. A business registered entirely in one spouse's name remains subject to a resource-balancing claim if it was built or grew substantially during the marriage. Investment accounts held in one spouse's name are included. Israeli Family Courts have broad authority to compel disclosure of bank statements, corporate records, pension statements, and foreign account documentation going back to the date of marriage — and the courts exercise that authority regularly.
For couples with assets in multiple countries, the practical difficulties compound. Enforcing an Israeli court order against assets in the United States, the UK, or France requires separate enforcement proceedings in each jurisdiction, since Israel does not have automatic mutual enforcement treaties with most countries. A postnuptial agreement with explicit asset allocations — especially one that mirrors the arrangements already documented in the foreign country — can avoid those proceedings entirely by leaving each country's assets under the jurisdiction where they sit.
The timeline is the other hidden cost. In a contested divorce involving overseas property and a family business, four or five years between the initial filing and a final judgment is not unusual in the Israeli Family Court system. A postnuptial agreement typically compresses that considerably, because the major financial questions are already settled on paper.