When a money secret stops being private and becomes a filing problem
In most marriages, an account your spouse does not know about is a trust question. In a marriage where one of you is a US citizen and one is not, it is also a filing question. The American spouse signs US reports covering every non-US account they own or can sign on, and nobody can sign accurately for an account they were never told existed.
The seam here is US citizenship, not aliyah. Two Israelis never meet this problem, and neither does an Israeli married to a British oleh who has properly ended UK residency. Add one American passport to the household and a quiet account, a convenience signature, or a well-meant joint account starts generating obligations for the person who did not open it. Almost every mixed-citizenship couple is blindsided by the direction of travel: the disclosure that matters most is usually owed by the non-American spouse, to the American one.
This is information, not advice
What actually has to be disclosed, and what is still your own business?
Only what a US filing genuinely depends on. That is a short, specific list, and it is much narrower than "tell each other everything". Household spending, salary history, what you send to your parents abroad, and the balance of an account no US person owns or can sign on are ordinary financial privacy, not compliance items.
| Has to be on the table | Why a filing depends on it | Where it lands |
|---|---|---|
| Every non-US account the US spouse owns or can sign on, its institution, and its highest balance during the year | FBAR is triggered once all such accounts together top $10,000 at any moment in the calendar year, and it covers signature authority even with no ownership2 | FinCEN Form 114 |
| Adding or removing your spouse as a signatory, and the date you did it | A signature added mid-year still creates a duty for that whole calendar year, so a favour done in March surfaces the following April2 | FinCEN Form 114 |
| Any Israeli mutual fund or TASE-listed ETF held inside an account a US person owns or co-owns | For a US holder these are Passive Foreign Investment Companies, reported separately and taxed under a punitive default regime8 | Form 8621 |
| A gift or bequest to the US spouse from non-US relatives exceeding $100,000 in a year, counting related givers together | US persons report large foreign gifts even when no tax is due, and each gift above $5,000 must then be identified separately6 | Form 3520 |
| Whether the two of you have signed the residence election | It commits both spouses to reporting entire worldwide income, and it cannot be restarted once ended1 | The joint US return itself |
Notice what is absent. While the couple files separately, the non-US spouse's Israeli salary, their sole חשבון עובר ושב (Cheshbon Over VeShav), their pension, and their savings never appear on a US form. Financial infidelity in a mixed-citizenship marriage is not about secrecy in general; it is about the five items above.
Why the American spouse's signature is the pressure point
Because a joint US return makes both spouses responsible for the tax and any interest or penalty due, regardless of who earned the income or who made the mistake.3 Innocent spouse relief exists precisely because that liability is joint, which means it is something you have to apply for after the damage, not protection you hold by default.
The FBAR sits in a separate system with its own signature. There is one shortcut, and it is narrower than couples assume: one spouse may file a single FBAR covering both only where all foreign accounts are jointly owned and the other spouse has signed FinCEN Form 114a authorising it.2 A single undisclosed sole account breaks that condition, and the non-filing spouse is then simply delinquent. Note also that this shortcut only ever matters when both spouses are US persons. Where only one of you is American, the other has nothing of their own to file, which is exactly why the information has to move between you rather than between you and the IRS.
What does the section 6013(g) election really commit you to?
It is the least reversible thing a mixed-citizenship couple can do with a tax form. You attach a statement signed by both spouses to your first joint return, and from that point each spouse reports their entire worldwide income for that year and for all later years unless the choice is ended.1 For the non-US spouse that means an Israeli salary, Israeli interest, and any Israeli pooled fund they hold all enter the US system.
The exit is the part couples miss. The choice ends by revocation from either spouse, by death, by legal separation, or by inadequate records, and once it has ended for any of those reasons neither spouse can make it again in any later year, even married to a different person. The IRS describes it as a once-in-a-lifetime choice.1 A few hundred dollars saved in year one is therefore paid for with a door that stays shut.
| Filing route | What happens to the non-US spouse's income | Reversibility |
|---|---|---|
| Married filing separately (the default when no election is made) | Stays outside the US return entirely | Chosen year by year, nothing is locked in |
| Joint return using the residence election | Entire worldwide income of both spouses is reported, this year and all later years1 | Ends only by revocation, death, legal separation, or inadequate records, and can never be made again afterwards1 |
| Head of household | Stays outside the US return | Available only where the spouse was a nonresident at any time in the year, no election was made, and there is another qualifying person: the nonresident spouse never qualifies as that person7 |
How does a joint Israeli account become a US problem nobody discussed?
Quietly, at the counter. Adding a spouse to an Israeli account is a routine errand: תעודת זהות (Teudat Zehut), two signatures, done. Nothing in that visit announces that the American spouse has just acquired a reporting duty covering the entire balance, or that the bank will collect a W-9 from them for FATCA purposes.
Signature authority without a shekel of ownership counts too, and Israeli life is unusually full of it. Being the treasurer of your building's ועד בית (Vaad Bayit) account, being added to an elderly parent's account after a hospital stay, holding a business account, or co-signing a child's account can each put a foreign financial account on a US person's report even though none of the money is theirs.2 The threshold is also aggregate rather than per account, so three small accounts that individually look trivial can cross it together.2
Form 8938 is the second, separate channel, with much higher thresholds for people living abroad: more than $200,000 on the last day of the year or more than $300,000 at any time during it if you are unmarried or filing separately, and more than $400,000 or $600,000 on those same tests filing jointly.4 Crossing them does not retire the FBAR, because Form 8938 does not replace it, so the same account can appear on both filings.5 And a קרן נאמנות (Keren Neemanot) sitting inside any of those accounts is a PFIC for the US spouse, which is the one item on this page where standard Israeli advice and correct US advice point in opposite directions.8
Israeli treatment: the duty runs to the Tax Authority, not to your spouse
On the Israeli side this is not a spousal-liability question at all, it is a reporting one. Israel operates no FBAR analogue, and an Israeli bank has no view on which of you knew about which account. What changed is the disclosure owed upward. For olim who became Israeli residents on or after 1 January 2026, the reporting exemption that used to travel alongside the ten-year foreign-income exemption has been withdrawn: the foreign income can still be exempt from Israeli tax for the affected years, but it now has to be reported, on an annual דוח שנתי (Doch Shenati) together with a declaration of assets. Olim who arrived before that date remain under the older rules.10
The practical consequence for a couple is that an undisclosed foreign account is now potentially a gap in two countries' filings rather than one, and the two gaps are found by different authorities on different timetables.
Home-country treatment: UK, Canada, South Africa
If you are not a US person, your home country stops mattering once residency genuinely ends. A British oleh determines this under the Statutory Residence Test,11 a Canadian by severing residential ties,12 and a South African through cessation of tax residency. None of those regimes creates an FBAR, a Form 8938, or a PFIC problem of your own. The single route US rules take into your finances is your spouse: their report of an account you share, or an election the two of you sign.
Treaty treatment: what the treaty does not fix
The US-Israel income tax convention allocates taxing rights between the two countries and relieves double taxation.9 It does not switch off US citizenship-based filing, and it has nothing to say about the FBAR at all, because that is a Bank Secrecy Act report rather than a tax provision.2 Form 8938, Form 8621, and Form 3520 are information returns in the same way: a treaty credit can reduce what you owe, never the obligation to disclose. Couples who assume "the treaty covers it" are almost always thinking about tax and missing reporting.
The one-line disclosure test
Quick check
A couple makes the election to treat the non-US spouse as a US resident, files jointly for three years, then revokes it. What happens next?
In a marriage where one spouse is a US citizen and one is not, non-disclosure between spouses can become a compliance failure rather than only a relationship issue. The US spouse's FBAR covers every non-US account they own OR can sign on, once those accounts together exceed $10,000 at any point in the year, so an account they were never told about, or a signature added as a favour, produces an incomplete federal report. The compliance list is short: accounts and their highest balances, who is a signatory, any Israeli pooled fund inside an account a US person owns or co-owns (a PFIC, reported on Form 8621), foreign gifts above $100,000 in a year (Form 3520), and whether the couple has signed the election treating the non-US spouse as a US resident. Everything else, including the non-US spouse's salary, sole account, pension, and spending, remains ordinary financial privacy while the couple files separately. The election deserves particular care: it commits both spouses to reporting entire worldwide income for that year and all later years, and once it ends by revocation, death, legal separation, or inadequate records, neither spouse can ever make it again, even married to a different person. On the Israeli side there is no FBAR equivalent, but olim who became residents from 1 January 2026 must report foreign income and assets annually even where the ten-year exemption still removes the tax. This is general education, not tax or legal advice.
Only if a US filing of theirs depends on it. An account in your sole name, where your spouse has no signature authority and you are not a US person, belongs on no US form. Add them as a signatory and it enters their FBAR, which they cannot complete without the institution and the highest balance it reached.
Signature or other authority over a foreign account is reportable for a US person even without ownership, so a missed year is a real gap. Civil penalties can be significant, and the IRS runs procedures for taxpayers correcting past non-compliance. Stop here and speak to a cross-border professional: the right correction route depends on facts this page cannot see.
Sometimes it lowers the current bill, but the price is structural. The election means both spouses report entire worldwide income for that year and all later years, so your spouse's Israeli salary and any Israeli fund they hold enter the US system. It also ends permanently once revoked: neither of you can ever elect again.
Possibly, but not on the strength of the marriage alone. You count as unmarried for head of household purposes if your spouse was a nonresident at any time in the year and you did not elect to treat them as a resident. The catch: your nonresident spouse is not a qualifying person, so you need another one.
Not the disclosure side. The treaty allocates taxing rights and relieves double taxation, a question of how much tax you pay. The FBAR is a Bank Secrecy Act report, not a tax provision, and Forms 8938, 8621 and 3520 are information returns. A treaty credit can cut a tax bill to zero and leave every filing obligation intact.
Only through your spouse. Once you have genuinely ended home-country residency, under the Statutory Residence Test for the UK or by severing residential ties for Canada, you have no FBAR, Form 8938, or PFIC duty of your own. The single route US rules take into your money is a shared account or a joint return election.
Israel has no FBAR equivalent, and Israeli banks treat joint and sole accounts as routine. What changed is reporting to the Israel Tax Authority: olim who became residents on or after 1 January 2026 must file an annual Doch Shenati disclosing foreign income and declare their assets, even where the ten-year exemption still removes the tax.
Build the account inventory before filing season