How are foreign pensions and overseas retirement savings taxed in Belgium in 2026?
How are foreign pensions taxed in Belgium in 2026? Key rules cover state pensions, voluntary top-ups, overseas accounts, lump sums and capital gains.
A Belgian resident who has worked in several countries may normally receive a separate pro-rata state pension from each country. Foreign pensions, occupational schemes, overseas accounts and investment gains may also create Belgian tax and reporting obligations. The precise outcome depends on the countries involved, the type of pension and the way each scheme was funded.
The figures below are illustrative. The rules discussed principally concern income year 2026, assessment year 2027. The investment-sale example concerns income year 2027, assessment year 2028.
A typical cross-border retirement profile
Consider a person who is now employed and tax resident in Belgium after previously working for several years in:
Portugal;
the United Kingdom;
Ireland; and
Belgium.
The person has incomplete state pension records in the first three countries, several foreign employer pension schemes, a small private pension plan abroad and investments held through a foreign brokerage account.
This type of situation raises several distinct questions:
Will the foreign state pension years be lost?
Can missing contribution years be purchased?
Where will the pensions be taxed?
Must foreign accounts and pension contracts be reported in Belgium?
How will foreign occupational pension capital be treated?
What happens if the person moves abroad after retirement?
How are foreign shares taxed when sold?
These questions must be analysed separately. A favourable answer for one pension does not automatically apply to the others.
Can incomplete pension careers in different countries be combined?
Within the European Union, social security coordination rules generally require each country to take insurance periods completed in other participating countries into account when checking whether a person meets its minimum entitlement conditions.
This is known as aggregation of insurance periods.
Aggregation does not normally mean that one country pays for the entire international career. Instead:
each country checks entitlement using the combined international career;
each country calculates the part corresponding to the periods completed under its own system; and
each country pays its own pro-rata pension.
For a person who worked in the United Kingdom before the end of the Brexit transition period and remained in a protected cross-border situation, the coordination rules may also preserve the UK periods.
How the rules apply to Portuguese, UK, Irish and Belgian state pensions
Portuguese state pension
Portugal generally requires a qualifying period of 15 calendar years of contributions, whether consecutive or not.
A person with only around eight years of Portuguese insurance would not satisfy that threshold on the Portuguese record alone. However, insurance periods completed in other coordinated countries may be added when Portugal tests the 15-year condition.
Portugal would then calculate and pay a pension based only on the Portuguese part of the career.
Periods of unemployment may also count as equivalent contribution periods where the person received a qualifying unemployment benefit. This should be verified against the official Portuguese contribution record.
United Kingdom State Pension
Under the new UK State Pension system, a person normally needs at least 10 qualifying years to receive a pension and around 35 qualifying years for the full amount.
For the UK tax year 2026/27, the full new State Pension is stated in the source analysis as £241.30 per week, or approximately £12,548 per year.
A person with around six UK qualifying years would ordinarily fall below the 10-year domestic threshold. International aggregation may nevertheless establish entitlement, after which the UK calculates its share using the actual UK record.
As a simplified illustration, six qualifying years could represent approximately 6/35 of the full pension. The exact forecast must be obtained from the UK authorities because transitional rules and the individual National Insurance record can change the calculation.
Irish State Pension
Ireland’s State Pension (Contributory) generally requires at least 520 paid weekly contributions, equivalent to ten years, before a person qualifies under the domestic rules.
The pension is then assessed using a total-contributions approach, with a full career measured against approximately 2,080 weeks.
Someone with only about four to five years of Irish contributions would be below the domestic minimum. Aggregation may establish entitlement, but Ireland would still pay only the proportion generated by the Irish contribution record.
Belgian state pension
Belgian pension rights generally accumulate with each recognised career year. A full career is commonly expressed as 45 years, with each recognised year contributing to the eventual Belgian pension calculation.
For a person who continues working in Belgium for a substantial part of the remaining career, the Belgian pension may eventually become the largest state pension component.
How are international pension applications made?
At retirement, a Belgian resident would generally submit the pension application through the Belgian Federal Pension Service.
The Belgian authority then coordinates with the foreign pension institutions. The person should not usually need to submit entirely separate applications without coordination, although additional documents may be requested by each country.
Long before retirement, it is sensible to obtain and retain:
the UK National Insurance record and State Pension forecast;
the Irish PRSI contribution statement;
the Portuguese carreira contributiva;
the Belgian pension record on mypension.be; and
documentation for every occupational or private pension scheme.
Contribution records should be checked while supporting documents are still available.
Is it worth purchasing missing UK National Insurance years?
The United Kingdom may be the country where voluntary contributions have the greatest financial impact.
The rules for people living abroad changed from 6 April 2026. According to the source analysis:
voluntary Class 2 contributions for people abroad were abolished;
overseas applicants generally moved to the more expensive Class 3 system; and
new applicants may need ten years of continuous UK residence or ten years of paid contributions.
A person who does not satisfy that condition on the UK record alone may need to determine whether coordinated EU contribution periods can be considered. This should be raised formally with HMRC through the CF83 application process.
Admission is not automatic. HMRC must confirm eligibility.
Illustrative cost and potential return
The Class 3 rate used in the analysis is £18.40 per week, or £956.80 for a complete year.
Each additional qualifying year can add approximately 1/35 of the full new State Pension. Based on the 2026/27 pension amount, this represents roughly:
£6.90 per week; or
approximately £358 per year of pension.
On those illustrative figures, one purchased year could recover its cost in less than three years of retirement.
This does not mean that every missing year should automatically be purchased. Before paying, the person should ask HMRC or the Future Pension Centre to confirm:
which years contain gaps;
how much each year costs;
whether payment for that year increases the pension forecast; and
whether the person is eligible under the overseas rules.
The six-year deadline
UK contribution gaps can normally be filled for a limited retrospective period.
The analysis identifies 5 April 2027 as the deadline for filling a gap relating to the 2020/21 UK tax year. Anyone affected should verify the deadline directly with HMRC, particularly because overseas applications may take time to process.
Can Irish or Portuguese contributions also be topped up?
Ireland
Voluntary Irish PRSI contributions generally require at least 520 paid Irish contributions before admission.
A person with substantially fewer Irish weeks would therefore normally be unable to enter the voluntary system. Compulsory insurance in Belgium may create an additional obstacle.
Aggregation may protect entitlement to a pro-rata Irish pension, but it does not create additional Irish contribution weeks.
Portugal
The Portuguese voluntary social security system principally targets people who are not already covered by a compulsory system.
A person who is compulsorily insured through Belgian employment may therefore be unable to use that route. In addition, where international aggregation already secures entitlement, purchasing additional Portuguese cover may offer limited value relative to its cost.
Belgium
A Belgian employee normally continues building Belgian pension rights through compulsory social security contributions. No separate voluntary top-up is ordinarily required for those employment years.
Can foreign voluntary contributions be deducted in Belgium?
The Belgian treatment of voluntary foreign social security contributions can be uncertain.
It should not be assumed that a UK Class 3 payment is automatically deductible in the Belgian personal income tax return. The classification may depend on the legal nature of the contribution and its connection to compulsory or optional social protection.
Any Belgian deduction should be treated as a possible additional benefit, not as the main justification for purchasing UK years.
Where are foreign state pensions taxed if the pensioner remains in Belgium?
Tax treaties often allocate private-sector pension income to the pensioner’s country of residence.
Under the treaty treatment described in the source analysis, Portuguese, UK and Irish state pensions received by a Belgian resident would generally be declared and taxed in Belgium.
They would normally be combined with the person’s other taxable pension income and subjected to Belgian progressive taxation, while potentially benefiting from the Belgian tax reduction for pension income.
The exact treaty article and treatment must still be checked for each payment. Public-sector pensions, statutory pensions and private pensions do not always follow identical treaty rules.
How are foreign employer pension schemes taxed in Belgium?
Foreign occupational pensions require a separate analysis for each scheme.
Belgian taxation may depend on:
whether the benefit is paid as capital or as an annuity;
whether the employer or employee funded the scheme;
whether contributions received tax relief;
whether the employee had individually and definitively acquired rights;
whether the scheme resembles a Belgian group insurance plan; and
the country in which the pension was built up.
Depending on these factors, the Belgian result may range from progressive taxation to a more favourable treatment recognised in certain circumstances.
The UK 25% tax-free lump sum
UK law may allow part of a pension to be withdrawn tax-free in the United Kingdom.
That UK exemption does not automatically bind Belgium. Belgium may still regard the payment as taxable deferred professional income when the beneficiary is a Belgian resident.
A UK withdrawal should therefore not be made solely on the assumption that the first 25% will also be tax-free in Belgium.
Transfers of UK pensions
The analysis notes that transfers of UK pension rights to overseas arrangements have become less attractive since late 2024.
Certain transfers to EU schemes may be exposed to a 25% UK overseas transfer charge. Keeping the pension in the United Kingdom and planning the withdrawal may therefore be preferable, but the result depends on the destination scheme and the transfer conditions.
How is Belgian group insurance taxed at retirement?
A Belgian employer-sponsored group insurance plan can benefit from favourable taxation when the capital is paid at the appropriate retirement moment and the beneficiary has remained professionally active until then.
The analysis identifies the following broad charges:
an INAMI contribution of 3.55%;
a solidarity contribution of up to 2%; and
a final tax of approximately 10% on the main qualifying capital.
Withdrawing the capital earlier may result in a significantly higher tax rate.
The exact rate depends on the age, payment date, continued professional activity, composition of the capital and applicable legislation at the time of retirement.
Could moving to Greece reduce the tax on foreign pensions?
In 2026, Greece offers a special regime for certain incoming foreign pensioners.
Under the regime described in the analysis, qualifying individuals can be taxed at a flat rate of 7% on foreign-sourced income for up to 15 years. This may cover:
foreign pensions;
dividends;
interest; and
certain capital gains.
The main conditions include:
the person must not have been a Greek tax resident during five of the six preceding years;
the former country of residence must cooperate with Greece for tax purposes; and
the application must generally be submitted by 31 March of the relevant year.
A move must be genuine. The pensioner must actually transfer tax residence and the centre of personal and economic interests.
This regime may create an opportunity to coordinate foreign occupational pension withdrawals with Greek residence. However, legislation in force in 2026 cannot be assumed to remain unchanged decades later.
The option should therefore be preserved and reviewed closer to retirement rather than treated as a guaranteed future outcome.
Belgian social contributions linked to a Belgian group insurance payment may also remain relevant even if the beneficiary lives abroad.
Which foreign accounts must a Belgian resident report?
Belgian residents must generally report foreign financial accounts, including:
current accounts;
savings accounts;
brokerage accounts; and
accounts used to hold foreign shares or investments.
Two reporting steps may apply:
the account must be registered with the Central Point of Contact, or CPC, of the National Bank of Belgium; and
the existence of the account must be mentioned annually in the Belgian tax return.
The account itself is not necessarily taxed merely because it exists. However, interest, dividends and other taxable income received through it may need to be declared where no Belgian withholding tax was deducted.
Must foreign pension and life-insurance contracts be reported?
A foreign private pension plan may qualify as a foreign individual life-insurance contract.
Where it does, the Belgian resident may need to mention the contract in the personal income tax return.
This reporting obligation is separate from the taxation of the eventual benefit.
Foreign insurance premiums may also create a Belgian annual insurance-premium tax of 2%, depending on the legal structure of the contract and the circumstances in which it is marketed or subscribed.
A foreign pension contract should therefore be reviewed to determine:
whether it is insurance-based;
whether it must be reported;
whether Belgian premium tax applies;
whether early surrender causes foreign tax clawbacks; and
whether contractual exit penalties apply.
What should be done if foreign accounts were omitted from earlier returns?
A recent omission should generally be corrected spontaneously rather than left unresolved.
The practical steps may include:
registering the foreign accounts with the CPC;
informing the Belgian tax administration through MyMinfin or the competent tax office;
correcting the relevant assessment years;
identifying foreign insurance contracts; and
declaring any omitted interest or dividends.
The analysis mentions administrative fines ranging from €50 to €1,250 for missing account information.
It also states that, for assessments established since 29 July 2025, the tax increase for a first infringement committed in good faith has been abolished.
The administration will consider the facts of the case. Prompt voluntary correction, limited income and credible good faith may help, but a mild outcome is not guaranteed.
Foreign financial institutions may report account information automatically to Belgium under international exchange-of-information systems. Waiting for the administration to identify the omission can therefore weaken the taxpayer’s position.
Is the permanent tax regularisation procedure always necessary?
Belgium reinstated a permanent regularisation procedure in July 2025 for more serious historical cases.
The analysis refers to:
the tax due plus a 30-percentage-point penalty for non-time-barred income; and
a levy of 45% on time-barred capital.
This heavier procedure is not necessarily appropriate for every recent reporting omission.
Where the issue concerns recently opened accounts, modest income and a small number of returns, an ordinary corrective approach may be sufficient. The correct route depends on the years involved, the nature of the assets and whether the income or capital is time-barred.
Is it still worthwhile to fund a small private pension abroad?
Continuing a small foreign private pension plan may be unattractive where a Belgian resident:
no longer receives tax relief in the original country;
receives no Belgian tax reduction;
may owe Belgian premium tax;
incurs foreign contract charges; and
faces additional Belgian reporting obligations.
Before stopping contributions, the person should verify whether previous tax advantages would be reclaimed and whether the provider charges exit or suspension fees.
There may be no need to surrender the existing capital immediately. The more urgent question is whether future contributions should be redirected.
What Belgian pension-saving tax reduction is available in 2026?
For 2026, the source analysis identifies two Belgian pension-saving limits:
a contribution of up to €1,050, generating a 30% tax reduction, or up to €315; and
a higher ceiling of €1,350, generating a 25% tax reduction.
Choosing the higher ceiling does not always produce a better result. A taxpayer should compare the actual tax reduction and long-term product costs before contributing more than the standard ceiling.
Ordinary investments can be used alongside Belgian pension saving and an employer’s group insurance plan.
How is a sale of foreign shares treated in Belgium from 2026?
The source analysis applies a Belgian 10% tax on capital gains on financial assets from 1 January 2026.
For financial assets already held before 2026, it uses the value on 31 December 2025 as the reference value. Only the gain realised above that value is considered under the new regime.
The analysis also applies an annual exemption of €10,000 of realised gains, with:
indexation; and
an increase of €1,000 for each unused year, up to a maximum exemption of €15,000.
For a relatively small shareholding, the gain realised after 31 December 2025 may remain below the available exemption.
However, where the shares are held through a foreign broker, no Belgian financial institution may withhold the tax or complete the reporting. The taxpayer may need to:
determine the value at 31 December 2025;
calculate the taxable gain;
report the sale in the Belgian return; and
claim the available exemption.
A broker statement showing the year-end 2025 value should be retained.
Tax previously paid when shares were granted as employment income does not necessarily determine the reference value for the post-2025 capital-gains calculation.
How are dividends from foreign shares taxed?
Foreign dividends received by a Belgian resident generally remain taxable in Belgium.
Where no Belgian withholding tax has been applied, the dividends must usually be declared by the taxpayer. The analysis applies the ordinary Belgian rate of 30%.
Foreign withholding tax may also be deducted in the source country. A treaty can limit that withholding, but the reduced rate may require forms or a refund claim.
The Belgian tax is generally calculated according to the Belgian rules applicable to the amount received after foreign withholding.
What should a cross-border worker do first?
A practical order of priority is:
Check all pension records. Obtain official contribution statements from each country.
Review UK gaps promptly. Ask HMRC which years can be purchased and whether each payment improves the forecast.
Correct Belgian reporting omissions. Register foreign accounts and amend incomplete returns where necessary.
Classify each foreign pension plan. Determine whether it is statutory, occupational, private or insurance-based.
Review future foreign contributions. Compare their costs and tax treatment with Belgian pension saving.
Document investments held before 2026. Retain evidence of their value on 31 December 2025.
Avoid withdrawing occupational pension capital without advice. Belgian treatment can depend on the scheme’s legal and funding history.
Revisit emigration planning closer to retirement. Foreign pension regimes can change substantially over time.
Frequently asked questions
Will I lose pension years completed in another European country?
Normally not. International coordination can allow the countries to combine insurance periods when checking entitlement, while each country pays only the pension corresponding to its own contribution periods.
Can I receive a UK State Pension with fewer than ten UK qualifying years?
Potentially. Aggregation with protected EU insurance periods may establish entitlement, but the United Kingdom will generally calculate the pension using the actual UK qualifying years. HMRC should confirm the individual position.
Is the UK 25% pension lump sum also tax-free in Belgium?
Not automatically. The UK exemption is a UK tax rule, and Belgium may tax the withdrawal as deferred professional income when the beneficiary is a Belgian resident.
Do foreign accounts have to be declared even if they produce no income?
Yes. A foreign account may have to be registered with the CPC and mentioned in the annual Belgian return even where it produced no taxable income.
Is a foreign private pension automatically deductible in Belgium?
No. Contributions to a foreign pension or insurance contract do not automatically qualify for a Belgian tax reduction, and Belgian premium-tax or reporting obligations may apply.
Is moving to Greece enough to obtain the 7% pension regime?
No. The person must genuinely become a Greek tax resident, satisfy the previous-residence conditions and submit the application within the required deadline. The regime must also still exist at the time of the move.
Sources
State pensions abroad — Your Europe — https://europa.eu/youreurope/citizens/work/retire-abroad/state-pensions-abroad/index_en.htm
Guia prático — Pensão de velhice — Segurança Social — https://sisscontent.seg-social.pt/documents/10152/14521664/7001_pensao_velhice.pdf/003416f8-5c4e-44e6-a502-844a423a9396
Voluntary NI contributions abroad 2026 — Alto Accounting — https://www.alto-accounting.com/insights/voluntary-ni-contributions-expats-2026
Voluntary social insurance contributions — Citizens Information — https://www.citizensinformation.ie/en/social-welfare/irish-social-welfare-system/social-insurance-prsi/voluntary-prsi-contributions/
Paying voluntary PRSI to get closer to a full State pension — The Irish Times — https://www.irishtimes.com/your-money/2025/12/14/paying-voluntary-prsi-to-get-closer-to-a-full-state-pension/
Voluntary NICs whilst overseas — Association of Taxation Technicians — https://www.att.org.uk/employers/welcome-employer-focus/rate-increase-voluntary-national-insurance-contributions-whilst
Voluntary National Insurance from abroad — Horizon UK Tax Solutions — https://horizonukts.com/guides/voluntary-national-insurance-from-abroad
Greece — Other tax credits and incentives — PwC Tax Summaries — https://taxsummaries.pwc.com/greece/individual/other-tax-credits-and-incentives
Central Point of Contact — foreign accounts — National Bank of Belgium — https://www.nbb.be/en/central-credit-registers/central-point-contact-accounts-and-financial-contracts-cpc-5
Loi-programme du 18 juillet 2025 — mesures fiscales — RSM Belgium — https://www.rsm.global/belgium/fr/insights/loi-programme-du-18-juillet-mesures-fiscales
DLU quinquies — Tiberghien — https://www.tiberghien.com/fr/4361/dluquinquies-une-revolution-ou-un-statut-quo
Épargne-pension — SPF Finances — https://fin.belgium.be/fr/particuliers/avantages-fiscaux/epargne-pension
Taxe sur les plus-values — SPF Finances — https://fin.belgium.be/fr/particuliers/declaration-impot/revenus/taxe-plus-values
Nouvelle taxe sur les plus-values à partir de 2026 — Beobank — https://www.beobank.be/fr/blog/mon-patrimoine/nouvelle-taxe-sur-les-plus-values-2026.html
This article presents a general framework and does not constitute a personalised tax opinion. Tax and pension rules can change each year, and the correct treatment depends on the exact career, contracts, residence history and financial situation.
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