£20,000 PAYE vs Self-Employed 2025-26
Income tax · National Insurance · Take-home pay comparison
£20,000 — PAYE vs self-employed full comparison 2025-26
| Item | PAYE (employed) | Self-Employed |
|---|---|---|
| Gross income | £20,000 | £20,000 |
| Income Tax | −£1,486 | −£1,486 |
| Employee NI (8%/2%) | −£594 | — |
| Class 2 NI (£3.45/wk) | — | −£179 |
| Class 4 NI (6%/2%) | — | −£446 |
| Total NI | −£594 | −£625 |
| Annual take-home | £17,920 | £17,889 |
| Monthly take-home | £1,493 | £1,491 |
| Effective rate (IT+NI) | 10.4% | 10.6% |
PAYE takes home more at £20,000
At £20,000, PAYE employees take home £31/year more than self-employed workers. This is because at this income level the Class 2 NI flat charge (£179/year) outweighs the saving from lower Class 4 NI (6%) vs employee NI (8%).
Note: this comparison looks only at tax and NI. Self-employment also removes access to statutory sick pay, employer pension contributions, and employment rights. Factor these in before switching.
£20,000 PAYE vs self-employed — what's the difference?
At £20,000, both employees and self-employed workers pay the same Income Tax (£1,486). The entire difference in take-home pay comes from National Insurance.
Employees pay 8% employee NI on earnings between £12,570 and £50,270, and 2% above. Self-employed workers pay Class 4 NI at 6% on profits in the same range, plus Class 2 NI (£179/year — £3.45 × 52 weeks). Class 4 at 6% is lower than employee NI at 8%, but Class 2 partially offsets this saving at lower income levels.
Employer NI is not deducted from your pay either way — it is a cost borne by the employer on top of your salary. Self-employed workers effectively become their own employer but are not required to pay employer-rate NI.
Frequently asked questions
Do self-employed pay more tax than employed on £20,000?
At £20,000, PAYE employees take home £31 more than self-employed workers (£17,920 vs £17,889). Although Class 4 NI (6%) is lower than employee NI (8%), the Class 2 flat charge (£179/year) means self-employed NI can exceed PAYE NI at lower income levels.
What NI do self-employed pay vs employed on £20,000?
On £20,000, an employee pays £594 NI (8% on £12,570–£50,270, 2% above). A self-employed person pays £625 total NI: Class 2 £179 (£3.45 × 52 weeks) plus Class 4 £446 (6% on profits £12,570–£50,270, 2% above). Income Tax is identical at £1,486 for both.
Is it worth going self-employed at £20,000?
The tax difference at £20,000 is £31/year (£3/month) in favour of PAYE. However, self-employment also means no employer pension contributions, no statutory sick pay, no maternity/paternity pay, and no employment protections. The financial decision depends on whether any higher rate for your work compensates for these lost benefits.
How does income tax differ for PAYE vs self-employed?
Income Tax is identical for employees and self-employed workers in England/Wales/Northern Ireland. Both use the same Personal Allowance (£12,570), basic rate (20% on income £12,570–£50,270), higher rate (40%), and additional rate (45%). At £20,000, both pay £1,486 income tax. The only tax difference is National Insurance.