Belgian Bank Account After Emigration 2026: KBC, BNP Paribas Fortis, Belfius and ING Compared

What changes in 2026: tightened non-resident KYC at Belgian banks

From January 2026, the four pillars of Belgian retail banking — KBC, BNP Paribas Fortis, Belfius and ING Belgium — apply tighter Know-Your-Customer rules to clients who change tax residency abroad. The 5th and 6th anti-money-laundering directives (transposed into Belgian law via the 2017 AML Act, last amended 2025) require the bank to refresh the customer file every 12 months for non-residents, including foreign tax residency certificate, foreign address proof and updated FATCA/CRS declaration.

Practically, banks now allow you to keep a Belgian account abroad — IBAN BE remains valid — but tighten conditions: minimum balance EUR 2,500-10,000 in some segments, mandatory online-banking access (requiring eID, itsme or Digipass), and exclusion of certain products (regulated savings accounts gereglementeerde spaarrekening / compte epargne reglemente lose tax advantages for non-residents; Tak 21 / Branche 21 insurance products limited to residents).

Comparing the four big banks for emigrants

Tax consequences: precompte mobilier and CRS reporting

From the model 8 date, your Belgian bank withholds the standard 30% precompte mobilier / precompte mobilier on interest and dividends from Belgian sources. As a non-resident treaty resident you can reduce this to the treaty rate (typically 15%) by filing form 276 Div with the bank. Some banks (KBC, BNP Paribas Fortis) automate this if you upload a foreign tax residency certificate annually.

Your bank also reports the account under CRS (Common Reporting Standard) and FATCA (if US person) to FOD Financien / SPF Finances, which forwards to the foreign tax authority. The new country sees:

• Year-end balance.
• Total interest, dividends and gross sales of securities.
• Account holder identification (name, address, foreign tax number).

This means Belgian accounts are visible to your new country. Hiding them is not an option. Use proper declaration in your new country (e.g. modelo 720 in Spain, formulaire 3916 in France, NL box 3 in Netherlands).

Closing or maintaining: decision matrix

Keep the account if you have ongoing Belgian flows: rental income from kept property, FPD/SFP pension, dividends from Belgian shares, alimony, recurring expenses (gemeentebelasting, syndic costs). Annual cost typically EUR 60-180.

Close the account if no Belgian flows remain. Closure is free if balance is positive. You can close from abroad via written notice (postal or via secure messaging in the app), submitting eID copy + foreign address. The IBAN is kept reserved for 18 months in case of late incoming payments.

Open a parallel account abroad: Spanish IBAN ES, French IBAN FR, German IBAN DE, etc. with destination-country bank or with EU-passporting fintechs (Revolut, Wise, N26). SEPA transfers between Belgian and foreign IBAN take 1 working day, EUR 0 standard.

Investment accounts (effectenrekening / compte-titres) and the wealth tax

Belgium reintroduced in 2022 the jaarlijkse taks op effectenrekeningen / taxe annuelle sur les comptes-titres at 0.15% on portfolios above EUR 1,000,000 per natural person. After emigration, the tax applies only on Belgian-located accounts (i.e. accounts at a Belgian establishment). Move the portfolio to a foreign brokerage to exit the tax — typical destinations: DEGIRO (NL), Trade Republic (DE), Lynx (NL), Saxo Bank (DK).

Capital gains on listed shares remain untaxed at federal level for private investors, even after emigration, unless the gain is professional or speculative (article 90 WIB). Watch out for the new EU savings directive update of 2025 which reinstates harmonised reporting for ETF-style products.

Bank loans and mortgages from abroad

Existing Belgian mortgages remain in force after emigration. Banks cannot accelerate the loan due to residency change unless explicitly stated in the contract. However:

• You lose the woonbonus / bonus logement tax deduction (Flanders, Wallonia, Brussels) on the mortgage interest after the property ceases to be your principal residence.
• Banks may require additional collateral if the property is rented.
• Refinancing or renegotiation from abroad is harder — most Belgian banks decline new mortgages for non-residents.

For new mortgages on Belgian property as non-resident, Triodos Bank, Crelan and certain regional banks accept files; expect a higher interest spread (50-100 bps over resident rates) and larger down payment (30-40% vs 20%).

Fintech alternatives: what works after emigration

EU-passporting accounts work within EU/EEA. After Belgian emigration:

• Wise: Belgian and foreign IBAN simultaneously, multi-currency, low FX cost.
• Revolut: Lithuanian banking license, EUR 100,000 deposit insurance via Lithuanian DGS, fast switch of country.
• N26: German banking license, full IBAN DE, accepted across EU.
• Trade Republic: Investment account with German license, EUR 100,000 BaFin insurance.

Always combine: keep one Belgian IBAN at a major bank (KBC, BNP, Belfius, ING) for Belgian flows, plus a fintech for daily expenses and FX, plus a destination-country bank for local life. Three-account structure is the emigrant standard in 2026.