Your Partial Foreign-Taxpayer Status Is Ending: The Box 3 Handover Checklist

A September 2026 thread in r/belastingdienst shows someone realizing, after the fact, that they'd forgotten to apply partial foreign-taxpayer treatment on a past return. That mistake is easy to make for a specific reason: there's no checkbox or separate form for this election. You make it by how you answer the ordinary Box 2 and Box 3 questions on your regular aangifte — and when your eligibility ends partway through a year, the same return has to reflect two different answers to those questions, before and after the date. This guide is the handover checklist for that transition.

This is general information, not personal tax advice. It covers the mechanics as stated on the Belastingdienst's page on partiële buitenlandse belastingplicht. Confirm your own dates and filing specifics with a tax advisor before relying on any of this.

First, find your end date

Your relevant date isn't when you moved to the Netherlands or when your 30%-ruling started — it's the date your partial foreign-taxpayer election stops applying. That's the earlier of: the date your 30%-ruling itself ends (per your beschikking), or 31 December 2026, which is when the transitional protection for this election closes entirely. If you're not sure which cohort you're in or how the 2027 payroll change fits alongside this, our 30%-ruling foreign-assets timeline covers the cohort rules in detail — read that first if your own dates aren't already confirmed.

Who this actually applies to

Only people who held both the 30%-ruling and this election before 2024 can still use it, and only up to 31 December 2026 at the latest. If you started the ruling in 2025 or later, this election was never available to you — the Belastingdienst stopped allowing new elections from 1 January 2025, a change our 30%-ruling and savings guide covers from the eligibility side. If that's your situation, this specific handover doesn't apply to you; your foreign assets have been inside Box 3 all along.

How the handover actually works: no separate form

While the election is active, you answer the Box 3 questions as a foreign taxpayer — which narrows what's taxable to Dutch-situated wealth only: Dutch real estate, rights tied to Dutch real estate, and profit entitlement from a Dutch enterprise, plus debts linked to those. Everything else — foreign savings, a foreign brokerage account, crypto on a foreign exchange, property abroad — sits outside Box 3 for that period. After your end date, you answer the same Box 2 and Box 3 questions as a resident taxpayer instead, meaning worldwide wealth counts. Both answers can land in the same annual return; there's no second form to track down.

A mid-year example, without the tax result

Say your ruling and election end on 1 July 2026. The Belastingdienst's own example uses exactly this split: you can use the foreign-taxpayer election up to 1 July, and from that date onward you report as a resident taxpayer for the rest of the year. Practically, that means your 2026 return needs a clean picture of your foreign holdings as they stood on 1 July — not just 1 January — because that's the date your foreign wealth starts counting toward Box 3. Exactly how a mid-year value is apportioned isn't spelled out in general guidance beyond this; confirm the specifics with an advisor before you file, rather than guessing at a pro-rated figure yourself.

Records to gather before the date arrives

• Value of every foreign account and asset on your transition date — not just 1 January — since that's the point your foreign wealth starts being Box 3-relevant.
• Broker statements bracketing the date, Dutch or foreign, showing the portfolio composition before and after.
• Interest and dividend records for the full year, so you can see what accrued before versus after the transition.
• Exchange-rate evidence for any non-euro account or holding, converted consistently.
• Crypto transaction history from every foreign exchange you use — see our crypto in Box 3 guide for how that valuation works once it's inside Box 3.
• Foreign property documents — valuation, any related mortgage, and rental income if applicable.

Our Box 3 filing walkthrough covers the portal mechanics and January 1st pre-fill gap for a standard year; this handover adds the extra, un-pre-filled step of pegging values to your specific end date too.

Ask an adviser before filing if…

• You're not certain whether you were part of the pre-2024 cohort, or the exact date your beschikking lists as your ruling's end.
• Your ruling ends mid-year rather than on 1 January or 31 December.
• You hold foreign property, crypto, a substantial interest abroad, or anything beyond ordinary foreign savings and brokerage accounts.
• You've already filed a return for a year where this election applied and now suspect you answered the Box 2/3 questions incorrectly.

See our questions to ask a financial advisor guide, including whether they've actually handled this election before, not just the ruling in general.

FAQ

Is there a separate checkbox or form for this?

No. You elect it — and later stop electing it — purely through how you answer the standard Box 2 and Box 3 questions on your regular aangifte. There's nothing to tick elsewhere that confirms it's been applied correctly.

What happens if my ruling ends in July?

You use the foreign-taxpayer answers up to that date and resident-taxpayer answers from that date onward, within the same year's return. See the mid-year example above — and confirm the specific apportionment with an advisor rather than estimating it yourself.

Can I change a return I've already filed?

Yes, up until your assessment becomes final (onherroepelijk). Once it's final, you'd need to file a formal objection (bezwaar) within the objection period instead. After that window closes, you can no longer request a reduction — which is exactly the situation the r/belastingdienst poster was worried about.

Does this affect the 2027 payroll percentage change?

No — unrelated. The 27% step-down is a Box 1 payroll mechanic; this election is a Box 2/3 question. See our foreign-assets timeline guide for why the two don't move together.

Treat this as a filing-year checklist, not a one-time read

If your end date falls in 2026, this isn't advice to file away until next March — gather the records above now, while your foreign statements are easy to pull, rather than reconstructing a mid-year valuation from memory later. And if you're building toward financial independence with foreign holdings in the mix, our 30%-ruling as FI arbitrage guide covers what this same cliff means for your longer-term numbers, not just this year's return.