UK Salary Sacrifice Calculator
See how much income tax and National Insurance you could save by sacrificing part of your salary into a workplace pension.
Total Saved (Tax & NI)
£840.00
- Income tax saved
- £600.00
- NI saved
- £240.00
- Salary after sacrifice
- £42,000.00
- Pension contribution
- £3,000.00
Assumptions
- Does not model employer NI savings, which some employers pass back as additional pension contribution
How it's calculated
Compares tax and NI on your full salary against tax and NI on your salary after the sacrificed amount is removed.
Worked example
Sacrificing £3,000 from a £45,000 salary saves income tax and NI, shown live above.
Frequently asked questions
Does my employer save money too?
Yes — employers also save NI on the sacrificed amount, and some pass part of that saving back as extra pension contribution. This isn't modeled here since it varies by employer.