Check your National Insurance record
Review qualifying years and gaps before deciding whether a voluntary National Insurance payment is worthwhile.
Official HMRC route
Check your National Insurance record on GOV.UK
Sign in securely to review the contribution history held against your National Insurance number.
Open your official NI record →
What to do with the result
Complete year
No action is usually needed for that year. Check that credits and paid contributions match your records.
Gap that increases pension
Review the quoted cost and forecast increase before choosing whether to make a voluntary contribution.
Gap with no forecast increase
Do not assume paying is useful. Get personalised guidance if the result or your work history is unclear.
Check a gap before paying
- 1
Open the official record
Sign in and complete any identity verification requested by the GOV.UK service.
- 2
Review each tax year
Compare complete years, credited years and gaps with payslips, benefit records or self-employment records you hold.
- 3
Read the pension effect
Use the service's personalised forecast change, not only the existence of a gap, to judge whether payment may help.
- 4
Pay only through the official route
If online payment is available, use the option inside the authenticated service. Otherwise follow the GOV.UK contact instructions.
A gap is not a payment recommendation
Your National Insurance record can be affected by credits, contracted-out history and future qualifying years. Confirm the personalised pension effect before paying a voluntary contribution.
Frequently asked questions
What can I see in my National Insurance record?
Does every gap need to be filled?
Can I pay voluntary National Insurance online?
Can I request a printed National Insurance statement?
Why might a recent contribution be missing?
Official sources
Related Calculators
State Pension Top-Up Calculator
Estimate the cost, pension increase and payback period from filling eligible National Insurance gaps.
State Pension Calculator
Project your UK State Pension based on NI qualifying years and the new flat-rate amount.
National Insurance Calculator
Class 1, 2 & 4 NI for employed and self-employed.
Learn More
UK NI Classes 1, 2 & 4 — 2025-26 & 2026-27 (HMRC)
HMRC NI classes for 2025-26 and 2026-27: Class 1 (employed 8%/2%), Class 2 voluntary (£3.50/wk 2025-26, £3.65 2026-27), Class 4 (self-employed 6%/2%). Who pays and impact.
Is Topping Up Your State Pension Worth It? Class 3 Voluntary NI ROI (2026/27)
Paying voluntary Class 3 National Insurance to fill gap years costs about £957 per year and adds roughly £359 a year to your State Pension — a payback of under three years. Here's how to decide.