Salary Sacrifice Pension Calculator UK 2026/27
Calculate how much you could save on income tax and National Insurance by making pension contributions via salary sacrifice. Updated for 2026/27 including the 15% employer NI rate, UK tax thresholds, and Scottish tax band support. introduced in April 2025.
Salary Sacrifice Details
Estimated post-sacrifice salary
£38,000
Savings are estimated from your salary before and after sacrifice using 2026/27 tax bands for your selected region and UK-wide employee NI rates.
Your Annual Saving
£560
£47 per month
Salary Sacrifice Breakdown
Gross Sacrifice Amount
Goes to your pension
Tax Saved
Based on salary before and after sacrifice
National Insurance Saved
Employee NI saving
Net Cost to You
After tax & NI relief
Employer NI Saving
Employer may pass this on
For every £2,000 sacrificed, you only lose £1,440 in take-home pay — a saving of £560.
Financial Disclaimer
pension-calculator.co.uk provides free educational tools and information only. Nothing on this website constitutes regulated financial advice under the Financial Services and Markets Act 2000. Pension calculations are estimates based on assumed growth rates, inflation, and contribution levels. Actual results will vary. Tax treatment depends on your individual circumstances and may change. Please consult an FCA-regulated financial adviser before making any investment or pension decisions. Find an FCA-regulated adviser.
The employer NI saving most people don't know to ask about
Since April 2025, employer NI is 15%. Every £1,000 you sacrifice saves your employer £150 in NI. Many employers pass this saving into your pension — meaning your £500/month sacrifice could become £575/month in your pot at no extra cost to you. Ask your HR team if your employer passes on NI savings.
How Salary Sacrifice Works in 2026
With salary sacrifice, you ask your employer to reduce your gross salary by a set amount, and they pay an equivalent employer contribution into your pension instead. Because your gross salary is lower, both you and your employer pay less National Insurance — and you also pay less income tax.
The 2024 Autumn Budget changed employer National Insurance from 13.8% to 15% from April 2025, which significantly increased the incentive for employers to offer salary sacrifice. Every £1,000 sacrificed now saves your employer £150 in NI (up from £138). Many employers pass some or all of this saving back into employees' pensions, effectively boosting the pension value of each sacrifice.
For example, if you sacrifice £500/month and your employer passes on their 15% NI saving (~£75/month), your pension receives £575/month at a net take-home cost to you of approximately £360/month (basic rate taxpayer). That's a remarkable 60% uplift on your net outlay.
Salary Sacrifice vs Standard Contribution — 2026/27 Comparison
| Method | £5,000 to pension | Income Tax saved | Employee NI saved | Net cost (20% taxpayer) |
|---|---|---|---|---|
| Standard Relief at Source | £5,000 | £1,000 | £0 | £4,000 |
| Salary Sacrifice | £5,000 | £1,000 | £400 | £3,600 |
*Assumes 8% employee NI on earnings between £12,570 and £50,270 in 2026/27, then 2% above that. Does not include any employer NI saving pass-through.
Savings by Tax Band (2026/27)
| Tax Band | Income Tax Rate | Employee NI Rate | Total saving per £1,000 sacrificed |
|---|---|---|---|
| Basic Rate | 20% | 8% | £280 |
| Higher Rate (first portion) | 40% | 2% | £420 |
| Additional Rate | 45% | 2% | £470 |
Is Salary Sacrifice Right for You?
Good for salary sacrifice if…
- ✓You pay income tax (basic, higher, or additional rate)
- ✓Your employer offers a salary sacrifice scheme
- ✓You won't need a mortgage in the near future (or your income is well above the borrowing requirement)
- ✓You earn well above the National Minimum Wage
- ✓Your employer passes on NI savings to your pension
Consider carefully if…
- âš You are applying for a mortgage and income matters to lender
- âš Your salary is close to the National Minimum Wage
- ⚠Sacrifice would reduce earnings below the Lower Earnings Limit (£6,708)
- âš Your death-in-service benefit is based on contracted salary
- âš Your employer doesn't offer salary sacrifice (use SIPP contributions instead)
Compare salary sacrifice with standard contributions using our Tax Relief Calculator, or project the long-term impact on your pension pot with our Pension Calculator.
Worked Example: The Real Power of Salary Sacrifice in 2026
Let's look at a detailed example. Sarah earns £45,000/year and wants to increase her pension contributions by £300/month (£3,600/year). She has two choices: make a standard personal contribution or use salary sacrifice.
| Metric | Standard Contribution | Salary Sacrifice |
|---|---|---|
| Monthly gross sacrifice / contribution | £300 | £300 |
| Income tax saved (20%) | £60 | £60 |
| Employee NI saved (8%) | £0 | £24 |
| Net cost to take-home pay | £240/month | £216/month |
| Amount into pension | £300 | £300 |
| Potential employer NI pass-through (15%) | £0 | ~£45/month extra |
| Effective pension input (with NI pass-through) | £300 | ~£345/month |
Over a year, salary sacrifice saves Sarah an additional £288 in National Insurance (£24 × 12) compared with a standard contribution — and if her employer passes on their NI saving, her pension receives an extra £540/year at no extra cost. Over 20 years, those extra contributions compound significantly.
Higher Rate Taxpayers and Salary Sacrifice
For higher rate taxpayers (those earning over £50,270), salary sacrifice is even more powerful. Let's look at James, earning £65,000, considering a £500/month salary sacrifice:
- Income tax saved at 40%: £200/month
- Employee NI saved at 2% (on earnings above £50,270): £10/month
- Net cost to take-home pay: £290/month (58p in the pound cost)
- If employer passes on 15% NI saving: an additional £75/month goes into his pension
- Total pension input: £575/month for a net take-home cost of £290
Higher rate taxpayers who sacrifice salary rather than making a personal contribution also avoid the need to claim additional relief via Self Assessment — the full 40% saving is automatic through the payroll mechanism, which is both simpler and more immediate.
One additional benefit for those earning close to £50,270: salary sacrifice can bring your income below the higher rate threshold, keeping more earnings taxed at 20% rather than 40%. This can be particularly valuable for those on £55,000–£60,000 who can sacrifice enough to stay within the basic rate band.
Long-Term Impact on Your Pension Pot
The NI saving from salary sacrifice may seem modest month to month, but compounded over decades it can represent a substantial addition to your retirement pot. Consider the difference between a basic rate taxpayer contributing £300/month via standard contributions versus salary sacrifice over 30 years (at 5% annual growth):
Standard contribution (net cost: £240/mo)
~£250,000
At 5% growth over 30 years
Salary sacrifice (net cost: £216/mo + NI pass-through)
~£285,000–£310,000
With NI saving + employer pass-through at 5% growth
*Illustrative only. Assumes consistent contributions, no charges, 5% annual growth. Does not account for contribution or salary changes.
Use our Pension Calculator to project the long-term impact of increasing your monthly contribution via salary sacrifice, and our Tax Relief Calculator for a detailed breakdown of the tax savings at your income level.
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