Money guide

National Insurance, explained

Updated 3 August 2026 · 5 min read

Income tax gets all the attention. National Insurance quietly takes a similar bite, works to completely different rules, and buys you something specific — yet almost nobody can explain it. Here's the whole thing.

The rates for 2026/27

Nothing on the first £12,570 you earn.
8% on earnings between £12,570 and £50,270.
2% on everything above £50,270.

Yes — the rate falls at higher incomes, which surprises people. It's why the jump from basic to higher rate isn't as brutal as the headline 20%→40% suggests: income tax rises 20 points while NI drops 6.

The big difference from income tax: NI is worked out on each pay period separately, not your annual total. A one-off bonus month can push you into higher NI for that month alone — and unlike income tax, it usually isn't smoothed out later.

What you're actually buying

NI isn't a tax in the ordinary sense — it builds entitlement. Each year you earn above the threshold, you bank a qualifying year. You typically need 35 of them for the full new State Pension and at least 10 to get any at all. It also underpins contribution-based benefits like New Style ESA and JSA, and Maternity Allowance.

That's why NI credits matter: they're awarded automatically in some situations — claiming Child Benefit for a child under 12, receiving Carer's Allowance, or claiming certain benefits — and they count exactly like paid contributions.

See your own NI and tax split →Enter your salary and we'll break out exactly what each deduction takes.

The Child Benefit trap worth knowing

If one parent stays home and doesn't claim Child Benefit — often because a partner's income means the charge claws it back — they can miss out on NI credits, and years later find gaps in their State Pension record. The fix is to claim Child Benefit but opt out of receiving the payments. You keep the credits; you avoid the charge. Thousands of people have lost pension years to not knowing this.

Check your record

You can see your NI record and State Pension forecast free on gov.uk. It's worth ten minutes: gaps can sometimes be filled with voluntary contributions, and it's far cheaper to find out at 40 than at 66.

Self-employed? Different rules

Sole traders pay Class 4 NI on profits — 6% between £12,570 and £50,270, then 2% above. Class 2, the old flat weekly charge, stopped being mandatory in April 2024, though you can still pay it voluntarily to protect your record if your profits are low.

Quick answers

How much National Insurance do I pay?

For 2026/27 employees pay 8% on earnings between £12,570 and £50,270 a year, then 2% on anything above that. Below £12,570 you pay nothing.

Do I pay National Insurance on my pension contributions?

Not if you use salary sacrifice — the money never counts as your pay, so it escapes NI. Ordinary pension contributions taken from net pay do not reduce your NI.

Do I stop paying National Insurance at State Pension age?

Yes. Once you reach State Pension age you stop paying Class 1 NI on earnings, even if you keep working.

How many qualifying years do I need for a full State Pension?

Usually 35 qualifying years for the full new State Pension, and at least 10 years to get anything at all.

Written in plain English by mytakehome.money. General information, not financial advice — check anything important at gov.uk or with a qualified adviser.