Your National Insurance record and the State Pension

Your National Insurance record is the foundation of your UK State Pension. Every qualifying year you build—whether through employment, self-employment, or certain state benefits—adds to what you'll receive in retirement. This guide explains how to check your record, understand the qualifying years system, fill any gaps, and benefit from international social security agreements if you've worked abroad.

Understanding Qualifying Years and the State Pension Amount

The State Pension is not calculated by how much money you've paid in. Instead, it depends entirely on the number of qualifying years you've built up. A qualifying year is any tax year (6 April to 5 April) in which you earned above the Lower Earnings Limit, paid Class 2 National Insurance as self-employed, or received certain National Insurance credits through state benefits or Child Benefit.

The minimum threshold is 10 qualifying years to receive any State Pension at all. If you have fewer than 10 years, you receive nothing. You need the full 35 qualifying years for the complete new State Pension, which is £241.30 per week in 2026/27. If you fall between 10 and 35 years, you receive a proportional amount—roughly one thirty-fifth of the full pension for each year you have.

• 10 qualifying years: You receive some State Pension (approximately £68.94 per week or 28.6% of the full amount)
• 20 qualifying years: You receive approximately 20/35ths of the full amount (roughly £137.88 per week)
• 35 qualifying years or more: You receive the full amount (£241.30 per week in 2026/27)

How to Check Your National Insurance Record

You can check your National Insurance record free of charge through your HMRC personal tax account. This online service shows you exactly how many qualifying years you have built up so far, identifies any gaps in your record, and tells you whether you can pay voluntary contributions to fill those gaps.

Steps to access your record

1. Visit gov.uk/check-national-insurance-record
2. Sign in with your Government Gateway account (you'll need your National Insurance number and a form of ID such as a passport or driving licence)
3. If you don't have a Government Gateway account, you can create one online quickly
4. Once you're signed in, select 'Check your National Insurance record'
5. Review your year-by-year summary to see which years are 'full' (qualifying) and which show gaps

Your online record will show what you've paid up to the start of the current tax year, any National Insurance credits you've received, and—critically—whether gaps in your record could affect your State Pension. If HMRC identifies a significant gap, they may write to you directly. You can also check your record through the free HMRC app on iOS or Android using the same login.

Filling Gaps with Voluntary Class 3 Contributions

If your check reveals gaps—years when you earned below the Lower Earnings Limit, were unemployed without credits, or had periods abroad—you can fill some of those gaps by paying voluntary Class 3 National Insurance contributions. Each gap you fill becomes a qualifying year and increases your future State Pension.

Voluntary Class 3 contributions currently cost £18.40 per week or £956.80 per year (2026/27 rates). Each qualifying year you add through voluntary contributions increases your State Pension by approximately £6.89 per week or £328.64 per year.

Key rules for voluntary contributions

• You can usually pay for gaps going back six tax years from the current year
• An extended deadline has sometimes been available to fill gaps further back—check GOV.UK for the current position
• You cannot double-pay to increase your pension above the full 35-year maximum
• Payment is made through HMRC's website or by direct debit
• Before paying, check your State Pension forecast to confirm whether voluntary contributions would actually benefit you—you may already be on track for the maximum

Social Security Agreements and Foreign Years

If you've lived or worked outside the UK, you may not have to start your pension record from zero. The UK has bilateral social security agreements with countries around the world—including EU and EEA member states, Switzerland, the United States, Canada, and many others. These agreements allow you to combine your insurance records across borders so you don't lose pension rights simply because you moved country.

How aggregation works

Under these agreements, periods of contribution in one country can be added together with UK National Insurance years to help you meet the 10-year minimum threshold. For example, if you have 7 UK qualifying years and 5 years of contributions in a treaty partner country, those combined 12 years can help you qualify for a UK State Pension. However, your actual pension payment is proportional only to your UK years—the foreign years count for eligibility, not for increasing your weekly amount.

Countries with which the UK has social security agreements include most EU and EEA states, Switzerland, the United States, Canada, and New Zealand. If you worked in one of these countries and made contributions to their social security system, you should declare this when you claim your State Pension. Each country then pays its own share of your pension separately, often with annual uprating to keep pace with inflation or earnings.

• Your overseas contributions can help meet the 10-year minimum for any UK State Pension
• Your actual UK pension payment is based only on your UK qualifying years, not on foreign years
• You may receive separate pension payments from multiple countries
• The UK will coordinate with the other country to prevent you from paying National Insurance in both systems at the same time
• Check the GOV.UK social security agreements page to see whether your country of work is covered

What to do if you've worked abroad

1. Gather evidence of your employment and contributions in other countries—payslips, P60s, employment contracts, or social security records
2. Check the GOV.UK social security agreements page to confirm the country has a treaty with the UK
3. Review your UK National Insurance record to see how many years you have
4. When you reach State Pension age and apply, declare all years of foreign employment and provide documentation
5. The UK Pension Service will coordinate with the other country's pension authority to calculate your combined entitlement

Other Ways to Build Qualifying Years

You don't need to be in paid work to build qualifying years. National Insurance credits can protect your pension record during periods when you're unable to earn, such as unemployment, illness, caring responsibilities, or parental leave. Credits are awarded automatically if you claim certain state benefits, and parents claiming Child Benefit for a child under 12 also receive credits automatically.

If you're self-employed, you pay Class 2 National Insurance (a flat-rate contribution) if your profits exceed a small threshold. From April 2024, if your profits are above the Small Profits Threshold, you are treated as having paid Class 2 contributions automatically, which counts as a qualifying year. This protects your pension record even in years when your self-employed income fluctuates.

Who Should Act Now

If you're an expat or migrant now living in the UK, check your record as soon as possible—especially if you have fewer than 10 years and are approaching State Pension age. If you have gaps and are still within the six-year window to pay voluntary contributions, work out whether paying Class 3 contributions would be worth the cost. If you've worked abroad, gather your employment records and contact the UK Pension Service to ensure your foreign years are counted when you claim.

Key Takeaways

• You need 10 qualifying years to receive any State Pension and 35 for the full amount.
• Check your National Insurance record free through your HMRC personal tax account at gov.uk/check-national-insurance-record.
• Gaps can be filled with voluntary Class 3 contributions at £18.40 per week, usually going back six years.
• If you've worked abroad in a country with a UK social security agreement, your foreign years may count toward the 10-year minimum.
• National Insurance credits from unemployment, caring, or Child Benefit also build qualifying years without additional payment.
• Always check your State Pension forecast before paying voluntary contributions to ensure they'll benefit you.