A salary sacrifice pension scheme is a UK workplace pension arrangement where you agree to reduce your gross salary in exchange for the employer paying that same amount directly into your pension. Because the sacrificed amount never appears as your income, you avoid both Income Tax and National Insurance on it. That's a 28% saving for basic-rate workers (20% tax + 8% NI), 42% for higher-rate (40% + 2%), and 62% inside the £100k personal allowance taper. This guide covers how the scheme is set up, mechanics, employer setup + savings, and how to negotiate one at your workplace.
Verified against 4 official sources · Last reviewed 14 June 2026
Your employer sets up the scheme (typically via HR + pension provider)
You agree in writing to reduce your gross salary by £X
Your employer pays £X directly into your pension
Your P60 shows the reduced salary as your income
HMRC only sees the reduced salary; no Income Tax or NI on the sacrificed slice
Tax savings compared
At £50,000 salary, 8% pension contribution:
Method
Take-home reduction
£ into pension
Effective cost per £1
Salary sacrifice
£2,320
£4,000
58p
Net-pay arrangement
£3,200
£4,000
80p
Relief-at-source (basic + SA claim)
£2,320 (after SA)
£4,000
58p
Salary sacrifice matches relief-at-source-plus-SA in effective cost but wins on simplicity — no Self Assessment claim needed.
Employer NI saving
Employer NI (currently ~13.8% above secondary threshold) is also saved. Many employers pass some or all of this to the employee — either:
- Added to your pension contribution (typical: 100% pass-through)
- Returned as cash bonus
- Retained by employer
Ask your HR whether their scheme passes employer NI savings.
When salary sacrifice isn't right
Salary already at or near National Minimum Wage (can't legally reduce below NMW)
Salary is used for mortgage application (some lenders use pre-sacrifice salary; some don't)
Statutory maternity/paternity/sick pay is affected (based on post-sacrifice salary for calculations)
Life cover based on salary is affected (verify with insurer)
How to request salary sacrifice at your employer
If your workplace pension doesn't currently use salary sacrifice:
Ask HR / Payroll if they'd offer salary sacrifice
Point out employer NI savings (13.8% on the sacrificed amount)
Common employer objections: setup cost; state pension calculation
Most large employers already do; many mid-size don't
In short
UK salary sacrifice pension is the most tax-efficient contribution method available. Every £1 sacrificed saves 28-62p in tax + NI depending on your band. Always check whether your workplace offers it.
Frequently asked questions
What's the difference between salary sacrifice and net pay?
Sacrifice reduces your gross salary before Income Tax + NI. Net pay deducts pension before Income Tax but AFTER NI is calculated. Sacrifice saves NI too; net pay doesn't.
Is salary sacrifice legally binding?
Yes — it's a contractual variation of your employment. Usually requires 30 days notice to change back.
Does salary sacrifice affect my State Pension?
Marginally, if it takes you below the qualifying threshold. For most workers this is not a concern since they cross the threshold in a lower salary band.
Can I sacrifice into a SIPP?
Rare — most employers only offer sacrifice into their workplace scheme. Would require specific negotiation.
What's the maximum I can sacrifice?
Legally to the £60,000 annual allowance. Practically, you can't sacrifice below National Minimum Wage.
Employer pension match — UK employer pension match ranges from the 3% auto-enrolment minimum to 15%+ at generous employers. Capturing full match should be your first pension priority — it's free money. This guide covers structure + negotiation.
NEST pension explained — NEST (National Employment Savings Trust) is the UK's default workplace pension provider set up to support auto-enrolment. This guide covers what it is, how it works, fund choices, fees, and how it compares to People's Pension + Smart Pension.
Salary sacrifice — Salary sacrifice is the most tax-efficient UK pension contribution
Claim higher-rate pension relief — UK higher-rate pension tax relief above basic rate must be claimed via Self Assessment (relief-at-source schemes) or is captured automatically (net-pay/salary sacrifice). This guide covers the claim process.
Net pay pension scheme — Net-pay pension arrangement deducts contribution from gross salary BEFORE Income Tax (all bands automatic) but AFTER NI. Common in large-employer defined-contribution schemes. Doesn't save NI like salary sacrifice.
Annual allowance — UK pension annual allowance for 2026/27 is £60,000 — total contribution from you + employer + government tax relief. Tapers to £10,000 for those with income above £260,000. Carry-forward from unused prior 3 years available.
Salary sacrifice — An arrangement where you give up part of your gross salary in exchange for a non-cash benefit (most commonly pension contributions), reducing your Income Tax and National Insurance.
Sources
All figures on this page are sourced from official UK government publications.
We don't cite secondary commentary or other calculator sites.
For the calculation methodology behind every figure on this page, see our
methodology. For our review and update process, see our
editorial standards.
Last reviewed: 14 June 2026.
Next review due 14 December 2026.
Disclaimer: This page provides general information based on published HMRC and gov.scot figures. It is not personal tax or financial advice. For your specific situation, please consult a qualified accountant or contact HMRC directly.