What this checker does
Our NI qualifying years checker explains how the number of "qualifying years" on your National Insurance record determines the size of your State Pension, how to count them, and what happens when you have gaps. It walks through the calculation GOV.UK's own NI record service uses, with a worked example, so you understand exactly what a gap year costs you and whether filling it is worthwhile.
See how many qualifying years you still need for the full new State Pension, and roughly what filling a gap year could cost and add.
Illustrative only. The Class 3 voluntary rate (currently £18.40/week, roughly £956.80/year) and the value of each qualifying year are simplified, straight-line estimates — the real cost of buying back a specific past year, and the exact pension gain, is confirmed by HMRC and DWP for your own record. If you were contracted out, you will usually need more than 35 years, and this tool cannot quantify that precisely. Always check your own State Pension forecast before paying anything.
A qualifying year is a tax year in which you paid, or were credited with, enough National Insurance contributions — through employment, self-employment, or certain benefits and credits such as Child Benefit or Carer's Allowance. Under the current State Pension system, you generally need 35 qualifying years to receive the full new State Pension, and at least 10 qualifying years to get any State Pension at all. Years don't need to be consecutive, and everyone's record is built up individually across their working life.
It's a common misconception that only paid employment counts. In reality, a wide range of circumstances generate National Insurance credits automatically, including claiming Child Benefit for a child under 12, receiving Carer's Allowance, being unemployed and claiming certain benefits, or being on Statutory Sick Pay in some circumstances. Missing out on registering for these credits, particularly Child Benefit credits when a higher earner in a household claims instead, is one of the most common ways people unknowingly lose qualifying years.
The calculation itself is a simple proportion, once you know your qualifying years total:
Take the full new State Pension weekly rate (uprated each April).
Divide it by 35 (the number of years needed for the full amount) to get the value of one qualifying year.
Multiply that value by your actual number of qualifying years to estimate your weekly State Pension.
If you have fewer than 10 qualifying years, you generally won't qualify for any new State Pension at all.
This is a simplified model — people who were contracted out of the additional State Pension before April 2016, or who have a mix of old and new system contributions, may see a different figure on their official forecast because of transitional protections. The only fully accurate figure comes from your personal State Pension forecast on GOV.UK.
Suppose the full new State Pension is £221.20 a week (an illustrative current-style figure). Divided by 35, each qualifying year is worth roughly £6.32 a week. Jenny has 28 qualifying years on her record, having taken several years out to raise children before Child Benefit credits were something she was aware of.
Jenny is currently on track for about £176.96 a week rather than the full £221.20 — a gap of roughly £44 a week, or over £2,300 a year, for the rest of her retirement. If she has time before reaching State Pension age, filling some of those gap years, whether by working, claiming backdated credits she's entitled to, or making voluntary contributions, could close some or all of that gap.
If your qualifying years are below 35, it's worth checking whether any gap years can still be filled. Voluntary Class 3 National Insurance contributions can often be used to fill gaps from as far back as six tax years (sometimes further under special transitional arrangements), and doing so can be extremely good value, since a single year's voluntary contribution frequently costs far less than the extra State Pension income it generates over a typical retirement. If you're below 10 years, filling gaps becomes even more important, since without at least 10 you may get no new State Pension at all despite years of contributions.
Not claiming Child Benefit (or claiming it in the wrong parent's name) and missing out on National Insurance credits as a result.
Assuming self-employment automatically builds a full qualifying year regardless of profit level — small profits sometimes fall below the threshold.
Forgetting to check for gaps caused by time spent working or living abroad.
Not realising Carer's Credit exists for unpaid carers who don't already receive Carer's Allowance.
Paying for voluntary contributions without first checking whether they'll actually increase your pension — in some cases, due to transitional rules, they won't.
Leaving it too late — the window to fill older gaps closes over time, so checking your record early gives you more options.
You can view your National Insurance record and personal State Pension forecast for free on GOV.UK, which shows exactly how many qualifying years you have and any gaps.
Generally you can pay voluntary contributions to fill gaps from the past six tax years, though special transitional arrangements have sometimes allowed filling much older gaps — check your options before the relevant deadline closes.
Not always. If you're already on track for the full State Pension, or transitional rules mean extra years won't increase your amount, paying voluntarily may not add value. It's worth checking your forecast first.
Yes, credits (for example from Child Benefit or Carer's Allowance) count towards a qualifying year in the same way as paid contributions.
You generally need at least 10 qualifying years to receive any new State Pension at all, and 35 years for the full amount.
Want the full detail on qualifying years and how to fill gaps? Read our guide: National Insurance qualifying years explained.
Please remember: the figures used here are illustrative and for general guidance only, not personalised advice. For your confirmed record and forecast, check GOV.UK directly, or speak to MoneyHelper (moneyhelper.org.uk) for authoritative individual guidance.
Time spent living or working outside the UK is one of the most common causes of an unexpectedly low qualifying years total, because those years often don't generate UK National Insurance contributions or credits at all. If you worked in a country with a social security agreement with the UK — many European countries, along with others such as the USA, Canada, and Australia, have such agreements — the years you contributed there may count towards meeting the minimum qualifying period for a UK State Pension, even if they don't add to the amount you receive.
This is a nuanced area, because whether foreign contributions help you meet the 10-year minimum, contribute to your 35-year full amount, or do neither, depends heavily on the specific agreement between the UK and that country, and sometimes on when you worked there. If you've spent significant time working abroad, it's well worth getting a State Pension forecast and, if the picture isn't clear, contacting the International Pension Centre, which specialises in exactly this kind of cross-border query.
It's also worth checking whether you were still eligible to pay voluntary UK National Insurance contributions while abroad, which some people do specifically to protect their UK State Pension entitlement even while working overseas.
In many cases, yes, contributions in EU countries can count towards meeting the minimum qualifying period under reciprocal agreements, though the exact rules can be detailed. It's best confirmed through your State Pension forecast or the International Pension Centre.
Yes, in many circumstances you can continue paying voluntary Class 2 or Class 3 contributions while living overseas, which can help protect or improve your UK State Pension entitlement.