The rates and thresholds for National Insurance Contributions for 2023/24 are:
| Class: | Monthly earnings | Rate |
| Employer Class 1 above Secondary threshold | Over £758 | 13.8% |
| Employee’s class 1 | £1048to £4189 | 12% |
| Employee’s additional class 1 | Over £4189 | 2% |
| Self-employed class 2 (per week) | N/A | £3.45 |
| Share fishermen class 2 (per week) | N/A | £4.10 |
| Volunteer development workers class 2 | N/A | £6.15 |
| Class 3 (per week) | N/A | £17.45 |
| Annual profit thresholds | ||
| Self-employed class 2 | Over £12,570 credit available if profits between £6725 and £12,570 | |
| Self-employed class 4 | £12,570 to £50,270 | 9% |
| Self-employed class 4 additional rate | Over £50,270 | 2% |