The £1 that costs £500 · UK study
The NHS pay rise that leaves you worse off: how a single pound can cost a nurse £500.
The NHS pension takes a percentage of your whole salary — so crossing a contribution tier by £1 can quietly drop your take-home. We found the exact cliff edges hiding in the payslip.
The NHS pension is generous — but it has a quirk almost nobody notices. Your contribution rate is based on your whole pensionable pay, not just the part above each threshold. So the moment a pay rise nudges you over a tier boundary, the higher rate applies to everything — and you can end up with less than before. At the worst boundary, crossing from £65,190 to £65,191 moves you up a tier and cuts your after-pension pay by about £1,173.
The NHS pension tier cliffs
| Cross this salary | Rate jumps to | After-pension pay change |
|---|---|---|
| £27,797 → £27,798 | 8.3% | −£499 |
| £33,868 → £33,869 | 9.8% | −£507 |
| £50,845 → £50,846 | 10.7% | −£457 |
| £65,190 → £65,191 | 12.5% | −£1,173 |
This isn't a reason to turn down a raise — a bigger rise sails past the cliff, and the pension itself is worth far more than the contribution. But the tiny dead-zone just above each boundary is real, and worth knowing about at appraisal time. See your exact NHS take-home.
All figures computed from published HMRC tax rules for the 2026/27 tax year, using the same engine behind our calculators, and verified 12 August 2026. Reproducible and free to cite — contact us for the underlying data.