National Insurance Voluntary Contributions in Portugal: Britons

Yes, a Briton living in Portugal can usually still pay voluntary National Insurance to fill gaps in the UK record, but GOV.UK changed the rules on 6 April 2026: for time abroad after 5 April 2026 only Class 3 contributions are open, and you need 10 years in a row of UK residence or 10 years of qualifying contributions, unless the transition rules apply. This guide follows what the GOV.UK pages say, in the order a Briton in Portugal meets the questions.

We read the pages on 19 October 2026. The latest change they describe is the rule change that took effect on 6 April 2026, and the form page was last updated on 7 April 2026. This is not pensions advice and it gives no personal recommendation, because whether paying helps depends on your own record. The American side of the move, for readers who are not Britons, is in our guide to US taxes from Portugal.

Why do gaps in the National Insurance record matter?

GOV.UK says gaps can mean you “will not have enough years of National Insurance contributions” to get a State Pension or to qualify for certain benefits. It gives the causes, among them being unemployed and not claiming benefits, being self-employed with small profits, and “living or working outside the UK”.

The new State Pension page says you need 10 qualifying years on your record to get any new State Pension. It names three ways to get a qualifying year: working and making contributions, getting National Insurance credits, and paying voluntary contributions. Its full rate is £241.30 a week. People whose record started after April 2016 need 35 qualifying years for the full rate, and people who were contracted out will usually need more than 35.

Moving to Portugal does not remove a pension you already earned. Our guide to the UK State Pension for Britons in Portugal covers claiming and payment. This guide covers adding to the record while you live abroad. It sits with the money questions of the move, next to opening a bank account in Portugal.

How do I check my record before paying anything?

GOV.UK sends you to two services before you pay.

The forecast page says you cannot use the service if you are already getting your State Pension or have delayed claiming it. For those cases it points to the Pension Service in the UK or the International Pension Centre if you live abroad. The voluntary contributions guide adds that voluntary contributions do not always increase your State Pension, “for example if you were contracted out”, and that if you are below State Pension age the Future Pension Centre can tell you whether you will benefit.

Who can pay voluntary contributions while living in Portugal?

GOV.UK says the rules depend on the tax year you were living or working abroad. A tax year runs from 6 April to 5 April.

GOV.UK lists what counts as qualifying contributions for the 10 year test: Class 1, 2 or 3 contributions paid or treated as paid while in the UK; Class 1 or 2 contributions paid while working abroad under a Social Security Agreement; Class 1 contributions paid by posted workers for the first 52 weeks abroad; and Class 2 contributions paid by volunteer development workers. It says qualifying contributions do not include any other voluntary contributions paid for other periods abroad, or National Insurance credits.

GOV.UK also keeps a transition for people who applied under the old rules. You may still be able to pay Class 3 for periods abroad on the 3 year test if all of these are true:

1. You applied to pay voluntary Class 2 or Class 3 contributions for 2024 to 2025 or 2025 to 2026 on or before 5 April 2026.
2. You pay, or have paid, the contributions you applied for on or before 5 April 2027.
3. You apply to pay Class 3 contributions for 2026 to 2027 on or before 5 April 2027.

The page adds that these transitional rules no longer apply once you return to live or work in the UK. GOV.UK also notes that between November 2017 and April 2019 HMRC guidance was incorrect, and that if you did not apply or were refused because of it you may be able to pay at the original rates.

The people who cannot pay at all, according to the guide, include those with no gaps (unless they get Class 3 credits and may pay Class 2), married women and widows paying reduced rate National Insurance, and anyone past the deadline for the period with the gap. GOV.UK has an online checker, “check which voluntary National Insurance contributions you can pay”, for your own case.

What do voluntary contributions cost?

GOV.UK gives the rates for the 2026 to 2027 tax year as £3.65 a week for Class 2 and £18.40 a week for Class 3. You usually pay the current rate. If you pay Class 2 for the previous tax year, or Class 3 for the previous 2 tax years, you pay the original rate for those years, and for any earlier years you pay the 2026 to 2027 rate. Special Class 2 rates exist for share fishermen and volunteer development workers. GOV.UK gives these rates for 2026 to 2027 only; check the page and your HMRC payment request for the year you pay.

The guide gives reasons people choose to pay, in its words: being close to State Pension age without enough qualifying years, knowing you will not get the years you need for the full State Pension during your working life, living outside the UK but wanting to qualify for certain benefits or the State Pension, and not being eligible for credits. It does not tell any reader to pay.

What is the deadline for filling gaps?

GOV.UK says “You can only pay voluntary contributions for the past 6 years. The deadline is 5 April each year.” Its example is that you have until 5 April 2032 to make up gaps for 2025 to 2026. The Class 3 page repeats the 6 tax year limit and adds that if 5 April falls on a weekend or bank holiday, your payment should reach HMRC on the last working day before it.

For Britons who left the UK some years ago, the practical reading is that the gap years nearest the 6 year limit are the ones that disappear first. The pages do not give any extension for people who live abroad, and the check of your record shows which years are still open.

How do I apply from Portugal?

You apply to pay for periods abroad using form CF83, which the CF83 page says you can complete online. The CF83 page lists what to have ready: full name, date of birth, National Insurance number, your UK address if applicable and your address abroad, the date you left the UK, details of your employment before you left, how long you lived or plan to live abroad if known, and details of any work or self-employment abroad, and details of any government benefit you were receiving or claiming, if applicable. If you apply for several periods, the information is needed for each period.

To apply online you need a phone with a working camera and one of these photo IDs: a UK photocard driving licence, a UK passport, a non-UK passport with a biometric chip, a UK biometric residence permit or card, or a UK Frontier Worker permit. If HMRC approves, the page says it writes to you to confirm payment dates and amounts, or it may ask for more information.

Two exceptions are worth noting. First, GOV.UK says that if you are over, or within 6 months of reaching, State Pension age, HMRC cannot process the CF83 application and you must contact the International Pension Centre (the Class 3 payment page says “within 4 months” instead of 6 for this advice), which checks for gaps and tells you how much to pay. The Pension Centre page gives a State Pension line at +44 191 218 7777 (Monday to Friday, 8am to 6pm) and warns online replies are slow. Second, the Class 3 page says the online route through the State Pension forecast service cannot be used by anyone self-employed or who has lived or worked abroad.

How do I pay from a Portuguese bank account?

Once HMRC has confirmed the amount, the Class 3 page gives these routes.

Use the IBAN and reference exactly as the live page shows them, and the Class 3 payment page says the 18-digit number is for payments from a UK account, and for an overseas account to use your National Insurance number followed by “IC”, your surname then your initial. Sending money from Portugal to a sterling account has its own costs, covered in our guide to sending money between Portugal and the US or UK.

How does this relate to social security paid in Portugal?

GOV.UK’s guidance for people going to work in the EU says the UK has social security agreements with the EU, and that if you leave the UK to work there “you will only pay into one country’s social security scheme at a time”, usually the country you work in. It says you pay UK National Insurance only if HMRC issued a certificate of coverage (also called a PDA1), for example for some temporary postings of up to 2 years. If you work for a Portuguese employer, see our guide to social security and rights under a Portuguese employee contract.

GOV.UK’s page on benefits and pensions for UK nationals in the EU says you can count relevant social security contributions made in EU and EEA countries to meet the qualifying conditions for a UK State Pension. The page on National Insurance when you work abroad says voluntary contributions protect your benefit entitlement and your State Pension “whether you choose to return to the UK or stay living abroad”, and that they “do not cover your health insurance in the country where you live”. For healthcare, read the guide to GHIC, S1 and healthcare for Britons.

Voluntary National Insurance is separate from tax. For where pensions and income are taxed, see UK taxes and HMRC for Britons in Portugal and how foreign pensions are taxed in Portugal. Britons planning to move on the retiree route can start with the retirement and passive income visa, and the wider post-Brexit picture is in moving to Portugal as a British citizen after Brexit.

What should I do first?

1. Check your National Insurance record and State Pension forecast on GOV.UK and note which years are gaps.
2. Check whether credits could fill the gaps, because that could mean paying nothing.
3. Note the 6 year limit and the 5 April deadline for each gap year.
4. Use GOV.UK’s checker to see which class you can pay for time abroad, and whether you meet the 3 year or 10 year test.
5. If you are over State Pension age or within 6 months of it (4 months on the Class 3 page), contact the International Pension Centre; otherwise apply with form CF83.
6. Pay as HMRC instructs, in sterling, with the reference it gives, and check the record after up to 8 weeks.

The UK side of savings is covered in UK ISAs, Premium Bonds and savings when you move abroad.

Pages read on 19 October 2026: GOV.UK Voluntary National Insurance; Apply to pay voluntary National Insurance contributions for periods abroad (CF83), last updated 7 April 2026; Pay voluntary Class 3 National Insurance; Check your State Pension forecast; Check your National Insurance record; National Insurance if you work abroad; Paying National Insurance if you go to work in the EU; The new State Pension; International Pension Centre; Benefits and pensions for UK nationals in the EU, EEA or Switzerland; Living in Portugal. The latest change stated is the rule change effective 6 April 2026.