If you live in Belgium but work across the border — in the Netherlands, Germany, Luxembourg or France — sooner or later this question comes up: where do I open my brokerage account? With a Belgian broker like Bolero or MeDirect? With a broker in your work country, like DEGIRO (NL) or Trade Republic (DE)? Or with a neutral EU broker like Interactive Brokers?
The choice makes a clear tax difference. A Belgian broker automatically withholds the stock-exchange tax (TOB), the withholding tax on movable income (RV) and — from 1 June 2026 — the new capital gains tax. A foreign broker does not: you are then fully responsible for the filings yourself. That requires more administration, but can also work out cheaper.
This article puts the three options side by side and closes with a practical checklist. We give no concrete broker recommendation (that requires an FSMA authorisation we do not have). We do explain which type of broker suits which cross-border worker profile.
Contents
- First: in which country are you taxed on your salary?
- Three broker types for a Belgian cross-border worker
- Type A — Belgian broker
- Type B — Broker in your work country
- Type C — Neutral EU broker
- Decision tree: which type suits you?
- Practical checklist and pitfalls
First: in which country are you taxed on your salary?
Your broker choice is a tax consequence choice, not the primary one. The primary choice lies in the double-taxation treaty between Belgium and your work country.
- Belgium–Luxembourg: since the addendum of 31 August 2021 (Belgian Official Gazette of 20 March 2023, applicable from 1 January 2022), the 34-day rule applies. A Belgian resident working in Luxembourg may work elsewhere (teleworking from home in Belgium, business trips) up to 34 working days per calendar year without the corresponding fraction of salary being taxed in Belgium. Above 34 days, the salary is taxed in Belgium at the Belgian rate. Practical for brokers: an LU broker works for tax purposes as long as you stay under the threshold; for those who go over 34 telework days, the advantage of LU broker presence falls away.
- Belgium–Netherlands: the new treaty (signed 21 June 2023, replacing the treaty of 5 June 2001) is in preparation. A formal telework tolerance is under discussion but not yet ratified. The compensation scheme (art. 26 new treaty / art. 27 old treaty) compensates the residual disadvantage for BE residents working in the Netherlands.
- Belgium–France: the new treaty of 9 November 2021 is still in ratification. The old régime frontalier (the “zone frontalière” exception) will be phased out under the new treaty. BE residents working in France are in principle taxed in France on salary.
- Belgium–Germany: treaty of 11 April 1967 (updated). No specific cross-border workers’ regime for natural persons working in Germany — full work-country taxation applies.
Read your work-country rule first — the broker choice below follows from it.
Three broker types for a Belgian cross-border worker
In practice you have three groups:
- Type A — Belgian broker: Bolero (KBC group), MeDirect, Keytrade, Saxo Bank BE
- Type B — Broker in your work country: for NL cross-border workers: DEGIRO, BUX; for DE: Trade Republic, Comdirect; for LU: local bank brokers; for FR: Boursorama and others
- Type C — Neutral EU broker: Interactive Brokers Ireland (IBKR), Lynx (IBKR reseller)
The big difference is not in the product, but in the tax administration. The figure below shows the four axes that matter most for a cross-border worker.
Type A — Belgian broker
Belgian brokers such as Bolero (KBC group), MeDirect and Keytrade are authorised by the FSMA and fall under Belgian supervision. They take over the three main tax obligations:
- TOB — withheld per transaction, paid to the FPS Finance
- Withholding tax (30%) — withheld on dividends and interest at payout
- Capital gains tax (10%) — withheld by the broker from 1 June 2026 on every realised capital gain; the €10,000 annual exemption is not applied at source — you reclaim it through your tax return
Investor protection
Your investments fall under the Belgian Protection Fund for Deposits and Financial Instruments:
- €100,000 per depositor per institution for cash balances
- €20,000 per investor per institution for financial instruments (securities)
Pros and cons for cross-border workers
Pros:
– Zero extra tax administration: the broker handles TOB, RV and CGT
– Belgian customer service in Dutch
– Full supervision by the FSMA
Cons:
– Transaction costs are often higher than at foreign brokers for active investors
– Product range sometimes narrower for international instruments
Suitable for: cross-border workers who do not want to keep extra tax administration and are willing to pay slightly more for that tax simplicity.
Type B — Broker in your work country
Many cross-border workers choose the broker that is popular in their work country — DEGIRO in the Netherlands, Trade Republic in Germany. That is understandable: the language is familiar and so is the interface. But there is one point that surprises cross-border workers most often.
Work-country brokers do not withhold Belgian taxes
A work-country broker does not withhold Belgian TOB, withholding tax or capital gains tax. You are responsible for all three filings. This also applies to brokers that are set up for Dutch or German tax reporting — those systems do not cover the Belgian obligations.
Exception — DEGIRO: DEGIRO does automatically withhold the Belgian TOB by default for Belgian customers and pays it to the FPS Finance. Customers can also choose to self-declare (opt-out). Always check with your own broker whether automatic withholding applies — for RV and capital gains tax, DEGIRO does not withhold.
| Work country | Popular brokers | Supervision | Belgian TOB | Belgian RV | Investor protection |
|---|---|---|---|---|---|
| Netherlands | DEGIRO, BUX | AFM / BaFin | ✗ self | ✗ self | BCS (DNB) — €20,000 |
| Germany | Trade Republic, Comdirect | BaFin | ✗ self | ✗ self | EdW — €20,000 |
| Luxembourg | Local bank brokers | CSSF | ✗ self | ✗ self | SIIL (CSSF) — €20,000 |
| France | Boursorama and others | AMF / ACPR | ✗ self | ✗ self | FGDR — €70,000* |
* The French FGDR (Fonds de Garantie des Dépôts et de Résolution) covers investment securities up to €70,000 per investor per institution — higher than the European minimum of €20,000.
Cross-border workers in France — PEA not available: the French Plan d’Épargne en Actions (PEA) is legally reserved for persons who are tax residents of France. If you live in Belgium and work in France, you cannot open a PEA — even if you are of French nationality. Existing PEAs that you opened as a former French resident can normally be kept (contributions are however no longer possible after losing French tax residency). Read the current conditions at service-public.gouv.fr.
Do you work in the Netherlands? The choice of an NL broker also overlaps with your ZVW position and box-3 declaration — read more in our guide on ZVW and capital yield levy for BE-NL cross-border workers.
30% ruling — Netherlands. Are you working under the Dutch 30% ruling (amended since 1 January 2024; for 2025 with relaxation)? Then partial foreign taxpayer status in the Netherlands and the Belgian compensation scheme can reshape the broader tax picture. Ask a cross-border tax specialist about your situation.
Investor protection at work-country brokers
All EU member states implement EU Directive 97/9/EC: each country has an investor compensation scheme with a minimum coverage limit of €20,000 per investor per institution for financial instruments. The protection for securities is therefore as high as at Belgian brokers — the EU directive guarantees the same floor everywhere.
Pros for cross-border workers:
– Familiar language and interface if you are in the work country daily
– Sometimes lower transaction costs than Belgian brokers
Cons:
– Full personal responsibility for Belgian TOB, RV and CGT filings
– Extra administration per transaction month for the TOB deadline
– Language barrier with German- or French-speaking customer service
Type C — Neutral EU broker
The most used neutral EU broker among Belgian investors is Interactive Brokers (IBKR). The European platform is Interactive Brokers Ireland Limited, regulated by the Central Bank of Ireland (CBI).
Please note: IBKR used to have several European entities: Interactive Brokers Central Europe (IBCE, Budapest) was merged into Interactive Brokers Ireland Limited in August 2024. The Luxembourg entity (Interactive Brokers Luxembourg SARL) was wound down separately; those clients were also transferred to Interactive Brokers Ireland Limited. If you open a European IBKR account today, the legal entity is the Irish entity. Lynx is a Belgian reseller that operates through IBKR infrastructure.
Taxes and administration
As with a work-country broker, IBKR does not withhold Belgian TOB, RV or capital gains tax. All three filings are your responsibility — via the same routes as with Type B (see checklist below).
Investor protection
IBKR Ireland falls under the Investor Compensation Company Ltd (ICCL) in Ireland — the Irish implementation of EU Directive 97/9/EC. Coverage: €20,000 per investor per institution for instruments.
Pros:
– Low transaction costs for larger portfolios (above ~€50,000)
– Very broad international product and exchange choice
– Multi-currency accounts
Cons:
– Complex interface — less suited to beginning investors
– Full self-declaration responsibility
– No personal advice or Dutch-language customer service
Suitable for: cross-border workers with a larger portfolio who want to handle the tax administration themselves or outsource it to an accountant, and for whom low costs come first.
Decision tree: which type suits you?
Practical checklist and pitfalls
1. TOB self-declaration (mandatory for Type B and C)
If you use a foreign broker, you declare the TOB yourself via:
MyMinfin → My declaration → Miscellaneous taxes → TOB (DivTax platform)
Deadline for private investors: last working day of the second month after the transaction month.
Example: purchase in March → declaration and payment no later than the last working day of May.
The standard TOB rates (2026):
| Instrument | TOB rate | Maximum per transaction |
|---|---|---|
| Shares, distributing trackers | 0.35% | €1,600 |
| Bonds, government bonds | 0.12% | €1,300 |
| Most UCITS ETFs (Irish / Luxembourg domicile) | 0.12% | €1,300 |
| Capitalising funds (Belgian compartment) | 1.32% | €4,000 |
Please note: the 1.32% rate applies to accumulating funds of which at least one compartment is registered with the FSMA (registration criterion, not domicile criterion). Distributing versions usually fall under 0.12%. Most UCITS ETFs that Belgian investors buy (Vanguard, iShares, Xtrackers — Irish or Luxembourg domicile, without FSMA-registered compartment) fall under the rate of 0.12%. Check the registration status of your fund (FSMA fund register) before filling in the declaration.
Also see our guide on the snapshot value at 31 December 2025 for keeping supporting documents for TOB and DAC8.
2. Withholding tax — Box VII, not Box XV
Foreign dividends and interest that were not taxed at source in Belgium (which is the case with all Type B/C brokers), you declare in Box VII, section A of the Belgian personal income tax return. The standard rate is 30%.
Common misconception: income from movable assets belongs in Box VII. Box XV is the section for “miscellaneous income” — a different category. Use only Box VII for dividends and interest.
Treaty rates and credit: Foreign dividends often benefit from a reduced treaty rate at source (usually 15% for portfolio dividends under BE–NL, BE–FR, BE–LU, BE–DE). Belgium grants a credit/deduction (FBB/QFIE) on self-declaration — always check the interaction with the work-country withholding tax.
3. Capital gains tax 2026 (10%)
All Belgian residents pay 10% tax on net capital gains above €10,000 per person per year (tax year 2027; annually indexed), regardless of which broker they invest with. Act of 6 April 2026, NUMAC 2026002780.
- Type A (Belgian broker): the broker withholds the capital gains tax automatically, from 1 June 2026 (opt-out possible)
- Type B and C: declaration via the annual personal income tax return
For the full explanation read the guide capital gains tax 2026 for cross-border workers.
4. DAC8 and crypto at foreign platforms
The Belgian Act of 16 March 2026 (Belgian Official Gazette 1 April 2026, in force 11 April 2026) introduces DAC8: crypto-asset service providers with an EU nexus are required to report data on Belgian taxpayers to the FPS Finance. The first reporting period is financial year 2026; first reporting deadline: no later than 30 September 2027 (European maximum term per DAC8). The FPS Finance will communicate the exact Belgian deadline — consult fin.belgium.be for the latest communication.
Concretely: if you, as a Belgian resident, hold crypto with a foreign exchange or broker, that service provider reports your data automatically to the Belgian tax authority — even if the exchange is not based in Belgium. Transparency on crypto is therefore mandatory, regardless of where the account is.
5. Investor protection summary
| Broker type / Country | Instruments | Cash balances | Supervisor |
|---|---|---|---|
| Type A — Belgium | €20,000 (Protection Fund) | €100,000 (Guarantee Fund) | FSMA |
| Type B — Netherlands | €20,000 (BCS, DNB) | €100,000 | AFM / DNB |
| Type B — Germany | €20,000 (EdW)† | €100,000 | BaFin |
| Type B — Luxembourg | €20,000 (SIIL, CSSF) | €100,000 (FGDL) | CSSF |
| Type B — France | €70,000 (FGDR) | €100,000 (FGDR) | AMF / ACPR |
| Type C — Ireland (IBKR) | €20,000 (ICCL)† | €100,000 (DGS Ireland) | CBI |
† Pays out 90% of the claim up to a maximum of €20,000 (full coverage for claims up to approx. €22,222). The Belgian protection has no 90% limitation: the full €20,000 on recognised loss.
All EU brokers offer the same floor of €20,000 for instruments through EU Directive 97/9/EC. For cash protection, €100,000 applies everywhere through the EU deposit guarantee directive. Read more on the Belgian protection in our guide deposit guarantee €100k — family, joint accounts and private companies.
6. NBB CAP — declaring foreign accounts
As a Belgian resident with an account at a foreign broker (Type B or C), you are legally required to declare that account to the NBB Central Point of Contact (CAP). This follows from art. 307 §1 of the Income Tax Code (WIB92/CIR92). You do this in two steps: (1) one-off registration of the foreign account with the NBB CAP via nbb.be — a separate electronic form, distinct from the tax return; (2) annual mention of the existence of the account in your personal income tax return (foreign accounts code). Failure to do so can lead to tax penalties (art. 307 §1 WIB92/CIR92).
Quick overview: the three choices side by side
| Criterion | Type A (Belgian broker) | Type B (Work-country broker) | Type C (Neutral EU broker) |
|---|---|---|---|
| Tax simplicity | ⭐⭐⭐ High | ⭐ Low | ⭐ Low |
| Transaction costs (larger portfolio) | ⭐⭐ Medium | ⭐⭐⭐ Low–medium | ⭐⭐⭐ Low |
| FSMA/EU supervision | FSMA (BE) | AFM/BaFin/CSSF/AMF | CBI (IE) |
| Investor protection instruments | €20,000 (BE) | €20,000 (EU directive) | €20,000 (EU directive) |
| Available to BE residents | Yes | Yes (DE/NL confirmed) | Yes |
| PEA (FR) | Not applicable | Not for BE residents | Not applicable |
For educational purposes only. This article is not investment advice, not a recommendation and not a personalised analysis. The author is not registered with the FSMA. Always consult a recognised adviser before making financial decisions. Full disclaimer →
Sources
- FPS Finance — Stock-exchange transactions tax (TOB rates, ceilings, self-declaration): financien.belgium.be (consulted May 2026)
- FPS Finance — TOB self-declaration via MyMinfin / DivTax: fin.belgium.be (consulted May 2026)
- FPS Finance — Capital gains tax 2026: fin.belgium.be (consulted May 2026)
- ejustice — Act of 6 April 2026 NUMAC 2026002780 (capital gains tax): ejustice.just.fgov.be (consulted May 2026)
- LegalNews — DAC8 Belgian transposition Act of 16 March 2026 (Off. Gazette 1 April 2026): legalnews.be (consulted May 2026)
- Belgian Guarantee Fund — Protection schemes for deposits and financial instruments: garantiefonds.belgium.be (consulted May 2026)
- DNB Netherlands — Investor Compensation Scheme (BCS): dnb.nl (consulted May 2026)
- CSSF Luxembourg — SIIL investor compensation: cssf.lu (consulted May 2026)
- Service-Public France — PEA: conditions and domicile requirement: service-public.gouv.fr (consulted May 2026)
- Curvo — Broker comparison for Belgian ETF investors (secondary verification availability for BE residents): curvo.eu (consulted May 2026)
- NBB — Central Point of Contact (CAP) foreign accounts: nbb.be (consulted June 2026)
- FSMA — Consumer information financial sector: fsma.be (consulted June 2026)
- FGDR France — Investor compensation for securities (€70,000): garantiedesdepots.fr (consulted June 2026)
- DEGIRO — Belgian stock-exchange tax (automatic withholding for BE customers): degiro.nl helpdesk (consulted June 2026)
- IBKR press release September 2023 — IBCE→IBIE merger: interactivebrokers.com (consulted June 2026)
- Impots.gouv.fr — PEA after leaving France: impots.gouv.fr (consulted June 2026)
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