UK pensions · salary sacrifice · PAYE FY 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)
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
Income tax saved£2,000
Employee NI saved£100
Employer NI saved · 15%£750

Annual comparison · gross £85,000Baseline · Sacrifice · Δ
Line
Baseline
No sacrifice
With sacrifice
£5,000 / yr
Δ
Difference
Gross PaySalary · pre-deduction
£85,000£85,000
Pension ContributionSalary sacrifice · pre-tax
£5,000+£5,000
Income TaxPAYE · 2026/27 bands
−£21,432−£19,432−£2,000
Employee NIClass 1 · 8% / 2%
−£3,711−£3,611−£100
Net Take-HomeFinal · in pocket
£59,857£56,957−£2,900
Employer NI Saving15% on sacrificed slice
+£750
Return to standard tax grid

HMRC 2026/27 snapshot FROZEN

Bands locked into this build. Sacrifice savings are computed against these exact thresholds.

  • Employer NI rate 15%
  • Employee NI · main 8%
  • Employee NI · upper 2%
  • 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.