Marginal tax rate calculator 2026/27
rates verified 24 Jul 2026 · next refresh after Autumn Statement
Direct answer
The homepage resolver computes the marginal rate by comparing the take-home at salary X with salary X + £1,000. The marginal rate is the fraction of that £1,000 lost to income tax and NI110.
Marginal rate band-by-band (rUK 2026/27)
| Salary band | Marginal rate |
|---|---|
| £0 – £12,570 | 0% |
| £12,570 – £50,270 | 28% (20% + 8%) |
| £50,270 – £100,000 | 42% (40% + 2%) |
| £100,000 – £125,140 | 62% (60% trap + 2%) |
| Above £125,140 | 47% (45% + 2%) |