Should I pay voluntary Class 2 National Insurance?

Voluntary Class 2 can make sense in 2026-27 if your self-employed profit is under £7,105 and that year would otherwise be a gap in your National Insurance record. It costs £3.65 a week, £189.80 for 52 weeks.

Sole traders do not have to pay Class 2. If your profit is £7,105 or more, it is treated as paid and your record is protected at no cost. Below that line nothing is charged, and the year can end up as a gap. The rules below follow GOV.UK and HMRC's published rates, checked on 16 October 2026.

Who can pay it

GOV.UK says you can pay voluntary Class 2 if you are self-employed and either:

• your gross income from self-employment is £1,000 or less, or
• your gross income is over £1,000 but your profit is under £7,105.

You cannot pay voluntary contributions if your record has no gaps (unless you are getting Class 3 credits and are eligible to pay Class 2), if you are a married woman or widow paying the reduced rate, or if the deadline for that year has passed.

When it can make sense

GOV.UK lists the situations where people may want to pay voluntary contributions. For a tradesperson, the common ones are:

• a low-profit year, such as your first year trading, a year of illness or a year when work dried up
• you are not eligible for National Insurance credits for that year
• you are close to State Pension age without enough qualifying years
• you know you will not build up the qualifying years for a full State Pension in your working life

The numbers behind this: you need 10 qualifying years to get any new State Pension. If your record started after April 2016, you need 35 qualifying years for the full rate, which GOV.UK gives as £241.30 a week.

It is not always worth it. GOV.UK says voluntary contributions do not always increase your State Pension, for example if you were contracted out. If you already have enough qualifying years, a gap may make no difference at all. It also says to check whether you can get National Insurance credits before paying, because credits could fill the gap for free.

Class 2 or Class 3

Self-employed people who can pay voluntary Class 2 can also pay voluntary Class 3. The difference in cost and cover is large.

Where you can pay Class 2, it costs less and counts towards more. GOV.UK also lists Class 3 for some employees on low pay and for people who are not working.

Worked example

Lee has been a self-employed handyman since 2024. Work is quiet in 2026-27: he takes £9,000 and spends £4,200 on tools, materials and van costs, so his profit is £4,800. That is under £7,105, so Class 2 is not treated as paid.

Choosing Class 2 over Class 3 saves Lee £767.00 for the same year on his State Pension record. If 2025-26 was also a gap, because his profit was under that year's £6,845 threshold, he could pay Class 2 for it at its original rate of £3.50 a week, £182.00 for 52 weeks, as long as he pays during 2026-27, for example with his 2025-26 tax bill due by 31 January 2027. GOV.UK says Class 2 for the previous tax year is charged at that year's rate, and older years at the current rate. This is an example only. Your own figures will differ.

How to pay

GOV.UK says most people pay Class 2 as part of their Self Assessment tax bill. If your trading income is £1,000 or less and you are covered by the trading allowance, GOV.UK says you must register for Self Assessment and send a return if you want to pay voluntary Class 2.

If you do not pay through Self Assessment, you register with HMRC instead. It sends a payment request between September and the end of October, with an 18-digit reference. If none has arrived by the end of November, contact the National Insurance helpline. Payments can take up to 8 weeks to show on your record.

What this means for you

If your profit is £7,105 or more, you do not need to do anything: Class 2 is already treated as paid. If it is under that, the choice is yours, and the decision rests on your National Insurance record, not your tax bill. You have time. GOV.UK says you can usually pay for the past 6 years, so a gap in 2026-27 can be filled until 5 April 2033.

Steps to decide

1. Work out your profit for the year: income minus allowable costs. If it is £7,105 or more, stop here.
2. Check your National Insurance record online to see whether the year is a gap and what filling it would cost.
3. Check whether you can get National Insurance credits for that year.
4. Check your State Pension forecast to see whether paying would increase your pension.
5. If paying helps, pay Class 2 through your tax return, or register with HMRC if you are not in Self Assessment.
6. Keep a note of the deadline: 5 April, 6 years after the end of the tax year with the gap.

The self-employed National Insurance calculator shows whether Class 2 is treated as paid at your profit. The free MTD check shows when Making Tax Digital starts for you, and the trades section has more guides on tax and National Insurance for sole traders.