UK pensions · salary sacrifice · PAYEFY 2026/27 LIVE
Net-pay drop → Pension pot.
See exactly how much take-home you give up versus how much lands in
your pension — including employee & employer NIC savings — for
every £ sacrificed. One-click rescue when your income is stuck in the
£100,000–£125,140 60% trap.
Employer NI
15%
Employee NI · main
8%
60% trap
£100k–£125k
SS
Salary Sacrifice & Pension Optimiser
2026/27 · Employer NI 15%
Compare your take-home drop against the pension pot expansion when redirecting salary into a workplace sacrifice scheme. Income Tax, employee & employer NI savings calculated against the HMRC 2026/27 ruleset.
Live · client-side
Tax jurisdiction
01Inputs
Gross · pension · sacrifice
Gross Annual SalaryPAYE · pre-deduction
£/ yr
Current Base PensionNon-sacrifice
%of gross
Target Sacrifice
£/ yr
Effective taxable income · after sacrificeHigher · 40%
£80,000= £85,000 gross − £5,000 sacrifice
Higher-rate band · Every £1 sacrificed inside this band saves 40% income tax + 2% NI.
Sacrifice 5.88% of gross· £4,250 / yr in non-sacrifice scheme (no NI saving)
60% Tax Trap · Sacrifice Rescue Available
Marginal · 60%
Gross of £85,000 sits in the £100,000–£125,140 taper. Sacrificing £0 drops taxable income to £100,000, restoring your full £12,570 Personal Allowance.
Required
£0
Applied
£5,000
Remaining
£0
02True cost & comparison
Baseline vs sacrifice
Final · True cost of sacrifice
Take-home drop vs Pension injection
Take-home drop
−£2,900
per year
→
Pension injection
+£5,000
per year
Giving up £2,900 of net pay injects £5,000 into your pension.£1 net pay → £1.72 in pension
Bands locked into this build. Sacrifice savings are computed against
these exact thresholds.
Employer NI rate15%
Employee NI · main8%
Employee NI · upper2%
Taper starts£100,000
Additional rate£125,140
Personal Allowance£12,570
FAQ
4 ANSWERS
What does salary sacrifice actually do?
You agree to a lower contractual gross salary; the employer pays the difference directly into your pension. Because tax and Class 1 NI are computed on the lower gross, you keep more of every £1 redirected — and the employer saves 15% NIC on the same slice, which many employers pass back into your pension.
Why is the 60% tax-trap rescue so powerful?
Between £100,000 and £125,140 every extra £1 of gross loses 50p of Personal Allowance, so the effective marginal rate is 60% (plus 2% NI). Sacrificing just enough to bring gross down to £100,000 recovers the full £12,570 PA — typically the highest-leverage move available in UK PAYE.
How is the employer NI saving calculated?
Employers pay Secondary Class 1 NIC of 15% on most of your earnings in 2026/27. Salary sacrifice reduces the slice that NIC is charged on, so the employer saves 15% × the sacrificed amount. Some employers contractually return this saving to your pension; others keep it.
What changes in April 2029?
The government has slated an annual £2,000 employee NIC exemption cap on salary-sacrifice pension contributions from April 2029. Contributions under that threshold remain unaffected; sacrifices above it would still get income-tax relief but lose the employee NI saving on the excess.