What Happens to Your 401(k) and IRA When You Move Abroad?

Somewhere between booking the one-way flight and selling the couch, every future expat asks: “What do I do with my 401(k)?” The good news: usually very little — and the most expensive answer is the one that feels most decisive.

Option 1: Cash it out (please don’t)

Closing retirement accounts “to keep things simple” triggers ordinary income tax on the whole balance, typically a 10% early-withdrawal penalty if you’re under 59½, possibly a bracket jump from the lump recognition — and the permanent loss of decades of tax-advantaged compounding. On a $300,000 balance the immediate cost can run to six figures. Moving abroad is not an emergency; don’t price it like one.

Option 2: Leave the 401(k) where it is

Perfectly legal from abroad. Former employees can keep 401(k)s with the old plan indefinitely (small balances excepted). Considerations: limited investment menus, plan fees, and administrators who are occasionally awkward about foreign addresses. Fine as a holding pattern; rarely the best permanent home.

Option 3: Roll to an IRA (the usual winner)

A direct rollover to an IRA at an expat-friendly brokerage is tax-free when done properly (trustee-to-trustee — never take the cheque yourself) and gives you full investment control from anywhere. The critical sequencing point: open the IRA while you still have a US address. Doing the same rollover after you’ve moved ranges from awkward to impossible depending on the custodian — a classic “do before you fly” item on the Financial Relocation Roadmap.

Contributing from abroad

New 401(k) contributions generally end with your US employment. IRA contributions can continue — but only with US-taxable compensation, which the Foreign Earned Income Exclusion can accidentally wipe out. That trap (and the Foreign Tax Credit fix) has its own article: Roth IRA and retirement contributions abroad.

Withdrawals abroad: the two-country question

When you eventually draw the money, two systems weigh in:

• The US side works as always: traditional withdrawals are ordinary income, Roth qualified withdrawals are tax-free, required minimum distributions start on schedule wherever you live.
• Your new country may see things differently. Some countries respect the US retirement wrapper via treaty; others tax withdrawals as ordinary income regardless of Roth status; a few have lump-sum quirks that punish or favour particular strategies. The same IRA produces meaningfully different retirement income in Lisbon vs Paris vs Berlin — worth knowing before choosing the destination, not after.

Two mistakes we see constantly

• The indirect rollover fumble: taking a distribution cheque intending to redeposit within 60 days — from abroad, with international mail and time zones. Use direct transfers only.
• Roth conversions without treaty math: converting traditional to Roth can be brilliant or pointless depending on whether your future country will even honour Roth’s tax-free status. Model it both ways first — with a professional who knows your treaty (that’s Advisor Matching territory).

The 2026 limits, and why your last US pay cheques matter

If you are leaving part-way through the year, the contribution limits still run per calendar year, not per month worked. For 2026 the 401(k) elective deferral limit is $24,500, with an extra $8,000 catch-up if you are 50 or older and a larger $11,250 catch-up if you are aged 60 to 63. The IRA limit is $7,500, plus a $1,100 catch-up from age 50.

The practical move: raise your deferral percentage on the final US pay cheques so the year’s allowance is not wasted. It is the last tax-advantaged room a US employer will give you for a while, possibly ever, and far easier to fill during your notice period than to reconstruct later.

One caution on the IRA side. Once you are abroad and claiming the Foreign Earned Income Exclusion, you may have no US-taxable compensation left to support an IRA contribution at all. A contribution you were not eligible to make is taxed at 6% a year until you take it back out. Check eligibility before the transfer, not after.

The 60-day clock and the 20% haircut

“Never take the cheque yourself” has arithmetic behind it. A 401(k) distribution paid to you personally comes with 20% mandatory federal withholding, and you then have 60 days to redeposit the full pre-withholding amount into an IRA — which means finding the withheld 20% from your own pocket in the meantime. Whatever you fail to redeposit is a distribution: taxed as income and, if you are under 59½, hit with the 10% additional tax as well. The withholding comes back as a credit when you file, months later.

A direct trustee-to-trustee transfer has no withholding and no clock. There is also a quieter rule: the IRS limits how often you may do an indirect IRA-to-IRA rollover, however many IRAs you hold. Direct transfers are not limited. From abroad, with post that takes weeks and a custodian that wants an original signature, the direct route is the only one with a predictable outcome.

Small balances can be pushed out without asking

Leaving a modest 401(k) behind is not always your decision. After you leave an employer, the plan may force out a balance of $7,000 or less, typically by rolling it into an IRA of the plan’s choosing or, for the smallest sums, by sending a cheque to your last known address. If that address is the flat you just handed back, you have a taxable distribution wandering around a foreign postal system.

The fix is the same sequencing point as the main rollover: open the IRA before you fly, then instruct the plan to send the balance there directly, and update your US mailing address strategy at the same time. A summer job’s leftover 401(k) is exactly the account that gets forgotten until a tax form arrives, so put every old plan on the pre-departure checklist, however small.

Required minimum distributions from a foreign address

Required minimum distributions begin at 73, rising to 75 for anyone born in 1960 or later (the first people affected reach that age in 2033). The age does not change because you live abroad, but the mechanics do. Custodians treat a foreign address as a trigger for extra checks on withholding and documentation, so tell them in writing what you want withheld and where the money should go. The withdrawal arrives in dollars, which makes each year’s RMD a currency decision as well as a tax one (exchange-rate risk in retirement). And your new country has its own view of the same withdrawal, which is why the treaty modelling above belongs at the planning stage, not at 73.

The bottom line

For most movers the answer is: roll the 401(k) into an IRA at an expat-friendly custodian before departure, keep investing in US-domiciled funds, and plan withdrawals around your destination’s treaty. Simple — when sequenced right. Sequencing it is literally our job: start with a free Money Check.

This article is general information, not tax or investment advice. Rollover and treaty rules are fact-specific — take professional advice before moving money.