How much Class 4 National Insurance do I pay on £30,000 self-employed profit in 2026/27?

Full answer

Self-employed people pay Class 4 National Insurance on their profits for 2026/27 at 6% on profits between the lower profits limit of £12,570 and the upper profits limit of £50,270, then 2% above £50,270. On £30,000 of profit, the whole amount between £12,570 and £30,000 falls in the 6% band: £17,430 x 6% = £1,045.80. Class 2 National Insurance has been abolished as a mandatory charge, but you are still treated as having made Class 2 contributions for benefit and State Pension purposes if your profits are above the Small Profits Threshold, and you can pay voluntary Class 2 at £3.65 a week if your profits are lower and you want to protect your National Insurance record. You also pay Income Tax on the same profit: with a £12,570 Personal Allowance, £17,430 is taxed at the 20% basic rate, giving £3,486 of Income Tax. So on £30,000 profit your combined Income Tax and Class 4 NI is roughly £4,531.80, leaving about £25,468.20. Payments are made through Self Assessment, often with payments on account towards the next tax year based on this year's liability. Use the Self-Employed Tax calculator to combine Income Tax and Class 4 NI for your profit.

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More answers

• How much Class 4 National Insurance do I pay on £50,000 self-employed profit in 2026/27?
• How much Class 4 National Insurance do I pay on £40,000 self-employed profit in 2026/27?