If you have gaps in your National Insurance (NI) record, buying voluntary contributions could add hundreds of pounds a year to your State Pension — for life. Here is everything you need to know.
How the State Pension Works
| Detail | Amount (2026/27) |
|---|---|
| Full new State Pension | £241.30 per week (£12,547.60 per year) |
| Qualifying years needed for full amount | 35 years |
| Minimum years needed for any State Pension | 10 years |
| Each qualifying year adds | Approximately £6.89/week (£358.50/year) |
You build up qualifying years through:
- Working and paying National Insurance (employee or self-employed)
- Receiving National Insurance credits (e.g. while claiming certain benefits, caring for a child under 12)
- Paying voluntary contributions
Related: State Pension Guide
Who Should Consider Buying Extra Years?
| Situation | Should you buy? |
|---|---|
| You have fewer than 35 qualifying years and are approaching State Pension age | Yes — likely very worthwhile |
| You have gaps from time abroad | Yes — often excellent value |
| You have gaps from career breaks (caring, illness) | Check first — you may have NI credits you don’t know about |
| You have gaps from self-employment before Class 2 was abolished | Yes — check your record |
| You already have 35+ qualifying years | No benefit — you already qualify for the full State Pension |
| You are very far from State Pension age with years of work ahead | Probably not yet — you may fill gaps naturally through future employment |
How to Check Your NI Record
Step by Step
| Step | Action |
|---|---|
| 1 | Go to gov.uk/check-national-insurance-record |
| 2 | Sign in with Government Gateway or GOV.UK One Login |
| 3 | View your record year by year |
| 4 | Note any gaps — the system shows which years are full, which have gaps, and which can be filled |
| 5 | Check your State Pension forecast at gov.uk/check-state-pension |
Your forecast will tell you:
- How much State Pension you are currently on track to receive
- How many qualifying years you have
- Whether paying voluntary contributions would increase your pension
Phone alternative: Call HMRC National Insurance helpline on 0300 200 3500 (Monday to Friday 8am–6pm).
Cost vs Benefit — Is It Worth It?
The Numbers
| Factor | Amount |
|---|---|
| Cost of one year of Class 3 voluntary contributions (2026/27 rate) | ~£956.80 |
| Additional State Pension gained per year | ~£358.50 per year |
| Years to break even | ~2.7 years |
| If you live 20 years after State Pension age | Return of ~£7,170 for a ~£956.80 investment |
| If you live 25 years after State Pension age | Return of ~£8,962 for a ~£956.80 investment |
Worked Example — Filling 5 Years of Gaps
| Detail | Amount |
|---|---|
| Cost of filling 5 years | ~£4,784 (5 × £956.80) |
| Additional State Pension per year | ~£1,792.50 (5 × £358.50) |
| Break-even point | ~2.7 years of pension payments |
| Total gained over 20 years of retirement | ~£35,850 |
| Total gained over 25 years of retirement | ~£44,813 |
| Net gain over 20 years | ~£31,066 |
This is one of the best guaranteed returns available — it beats virtually any savings account, ISA, or low-risk investment.
When It Is NOT Worth It
| Scenario | Why |
|---|---|
| You already have 35 qualifying years | No additional benefit — the State Pension is capped at 35 years |
| Your forecast already shows the full amount | Extra years won’t increase it |
| You are young with many working years ahead | You will likely fill gaps naturally — wait and check again later |
| You have serious health concerns | The break-even point is approximately 3 years — consider your individual circumstances |
| You are on Pension Credit | Higher State Pension may reduce your Pension Credit — check first |
Deadlines — Act Quickly
The extended deadline that allowed anyone to fill gaps as far back as 2006/07 closed on 5 April 2025. If you missed it, those years are now permanently closed. The standard rule now applies: you can only fill gaps from the last 6 tax years, with each year’s own deadline falling on 5 April, six years after that tax year ends.
| Gap tax year | Deadline to fill |
|---|---|
| 2006/07 to 2019/20 | Deadline has passed — can no longer be filled |
| 2020/21 | 5 April 2027 |
| 2021/22 | 5 April 2028 |
| 2022/23 | 5 April 2029 |
| 2023/24 | 5 April 2030 |
| 2024/25 | 5 April 2031 |
| 2025/26 | 5 April 2032 |
| General rule | 6 years from the end of the tax year (after this, the gap is permanent) |
Important: These are the years currently payable as of September 2026 — the window rolls forward each April, so always check your own NI record and confirm current deadlines rather than relying on this table alone.
How to Pay Voluntary Contributions
| Step | Action |
|---|---|
| 1 | Check your NI record and identify which years to fill |
| 2 | Call HMRC NI helpline: 0300 200 3500 |
| 3 | Ask them to confirm the cost and confirm it will increase your State Pension |
| 4 | Pay by bank transfer, cheque, or (for ongoing contributions) direct debit |
| 5 | Keep written confirmation of what you paid and which years it covers |
Critical step: Always call HMRC before paying to confirm:
- Which years have gaps
- How much each year costs to fill
- Whether filling the gap will actually increase your State Pension forecast
- That the deadline has not passed
Do not just pay without checking. HMRC will tell you exactly how much benefit you will get.
Class 2 vs Class 3 Contributions
| Type | Who pays | Cost (2026/27) | Qualifies for State Pension? |
|---|---|---|---|
| Class 2 | Self-employed (voluntary, for those below the Small Profits Threshold) | £3.65/week (~£189.80/year) | Yes — full qualifying year |
| Class 3 | Voluntary — anyone filling gaps | £18.40/week (~£956.80/year) | Yes — full qualifying year |
If you were self-employed in the past and have gaps, check whether you can fill them with the cheaper Class 2 rate. This is particularly relevant for years when Class 2 was compulsory rather than voluntary. Call HMRC to check eligibility.
National Insurance Credits — Free Qualifying Years
Before paying, check whether you are entitled to free NI credits for any gap years:
| Credit type | Who qualifies |
|---|---|
| Child Benefit | Parent or carer of a child under 12 (credits applied automatically through Child Benefit claim) |
| Carer’s Credit | Caring for someone 20+ hours a week (even if you don’t qualify for Carer’s Allowance) |
| Jobseeker’s Allowance | Automatic credits while claiming JSA |
| Employment and Support Allowance | Automatic credits while claiming ESA |
| Universal Credit | Credits applied if earnings are low |
| Jury service | Credits for time on jury duty (you must apply — not automatic) |
| Specified Adult Childcare Credit | Grandparents and other family members caring for a child while the parent works |
Specified Adult Childcare Credit is often overlooked. If you care for a grandchild while the parent works, the parent can transfer their NI credit to you. Apply at gov.uk.
Special Situations
Living or Working Abroad
| Situation | Options |
|---|---|
| Working in an EU/EEA country | May count towards UK State Pension under social security agreements |
| Working in other countries with agreements | Check gov.uk/national-insurance-if-you-go-abroad for bilateral agreements |
| No agreement with country | Pay Class 3 voluntary contributions to maintain UK record |
| Returning to the UK | Check your record on return — you may have gaps worth filling |
Related: Money Guide — UK Expats Returning Home
Women with Gaps from the 1980s–2000s
Many women have NI gaps from years spent raising families before Child Benefit credits were automatic. Check whether:
- You claimed Child Benefit (credits should have been applied)
- Home Responsibilities Protection (HRP) was recorded on your record
- You can convert HRP years to qualifying years — contact HMRC
Step-by-Step Action Plan
| Step | Action | When |
|---|---|---|
| 1 | Check your NI record at gov.uk/check-national-insurance-record | Now |
| 2 | Check your State Pension forecast at gov.uk/check-state-pension | Now |
| 3 | Identify any gaps within the 6-year filling window | Now |
| 4 | Call HMRC on 0300 200 3500 to confirm cost and benefit | Before paying anything |
| 5 | Check whether any gaps are covered by credits you haven’t claimed | Before paying |
| 6 | Pay for any years that HMRC confirms will increase your pension | Before the deadline |
| 7 | Keep confirmation letters and payment records | Ongoing |