| Class 4 |
| Earnings or BenefitsSEE threshold | 2022/23 Annual£6,515.00 | 2023/24 Annual£6,515.00 |
| Earnings or BenefitsLower Profits Limit (LPL) | 2022/23 Annual£12,570.00 | 2023/24 Annual£12,570.00 |
| Earnings or BenefitsUpper Profits Limit (UPL) | 2022/23 Annual£50,270.00 | 2023/24 Annual£50,270.00 |
| Earnings or BenefitsBelow SEE | 2022/23 Annual0.00% | 2023/24 Annual0.00% |
| Earnings or BenefitsBetween SEE and LPL | 2022/23 Annual0.00% | 2023/24 Annual0.00% |
| Earnings or BenefitsBetween LPL and UPL | 2022/23 Annual9.00% | 2023/24 Annual9.00% |
| Earnings or BenefitsAbove UPL | 2022/23 Annual2.00% | 2023/24 Annual2.00% |