UK Bonus Sacrifice Into Pension (2026/27)

QWhat's bonus sacrifice?

Variation of salary sacrifice specifically for annual bonus. Employee agrees BEFORE bonus is paid to "sacrifice" some or all of the bonus in exchange for additional employer pension contribution of the same gross value. The sacrificed bonus is NOT subject to: (a) Income Tax (was going to be taxed at marginal rate), (b) Employee NI (was 8%/2%), (c) Employer NI (was 15% - so employer often passes some saving back as additional pension contribution + makes the sacrifice MORE valuable). Must be set up BEFORE the bonus crystallises - retrospective sacrifice not allowed. Sacrifice must be effective before contractual entitlement arises (Heaton v Bell [1970] AC 728 principle); Optional Remuneration Arrangements (OpRA) anti-avoidance under Sections 69A-69B ITEPA 2003 does NOT apply to pension contributions - they remain a recognised exception.

QHow big is the tax saving?

Higher-rate taxpayer (40% IT + 2% upper NI): Save 42% personal + employer can pass back some of 15% employer NI saving = ~50% combined saving. £10k bonus sacrifice = £10k pension + employee saves £4.2k tax + some employer NI saving redirected (often £1k+ to pension as "bonus" employer match) = ~£11k+ in pension for cost of £5.8k take-home foregone. £100k-£125k taper zone (60% effective rate): Save 60% personal! £20k sacrifice = £20k pension + saves £12k tax. Effectively £8k take-home cost for £20k pension - 250% return immediately. Additional-rate (45% + 2%): Save 47% personal + employer share. Slightly less than higher-rate (lost extra dividend allowance reduction etc) but still very strong.

QWhy is the £100k zone 60% rate?

Personal Allowance £12,570 is REDUCED by £1 for every £2 of income above £100,000 - lost entirely at £125,140. So in the £100-£125k zone: you pay 40% on the extra income AND lose 50p of PA worth 40% × £0.50 = 20p extra tax. Total: 60p tax on £1 extra income. Bonus sacrifice in this zone saves the FULL 60% - extraordinarily efficient. Worked example: someone at £108k base + £20k bonus. Without sacrifice: £20k bonus pushes to £128k; ALL £20k bonus + £14k of PA taper = ~£14k tax (60% effective on £18k of zone). With sacrifice: full £20k to pension; income stays £108k; tax saving ~£12k. Net cost ~£8k take-home for £20k pension. See our 60% escape guide.

QWhat's the catch?

(a) Locked until 55/57: pension can't be accessed until age 55 (rising to 57 from April 2028). For mid-career employees, this means money locked for 10-30+ years. (b) Future taxable: pension withdrawals taxable at marginal rate (after 25% PCLS). So tax not "saved" but DEFERRED + likely lower-rate at retirement vs current higher rate. (c) Lifestyle implication: less take-home pay now. Some find this constraining; others find it disciplines saving. (d) Mortgage affordability: lenders typically use SACRIFICED salary as base affordability income, not the higher pre-sacrifice level. Reduces borrowing capacity. (e) SMP / SSP / redundancy: all based on POST-sacrifice salary - so sacrifice reduces these statutory amounts. (f) Annual Allowance: £60k cap (less if tapered). Sacrifice plus existing contributions must stay within limit.

QHow does sacrifice + carry-forward stack?

Critical for high earners with large bonuses. If your bonus is £100k + you have unused Annual Allowance from previous 3 years (up to £180k stacked), you can theoretically sacrifice MORE than current year AA via carry-forward. Mechanics: (a) Identify unused AA from 2023/24 + 2024/25 + 2025/26 (subject to being member of registered pension scheme each year). (b) Stack with 2026/27 £60k current AA - up to £240k potential capacity. (c) Sacrifice up to your relevant earnings (post-sacrifice earnings must be at least NMW). (d) Tax relief at marginal rate - higher / additional rate. Example: bonus £100k, base £80k. Existing pension £20k. Available AA: £60k current + £40k carry-forward = £100k. Sacrifice £100k bonus into pension. Tax saved: ~£42-£47k + employer NI saving. Net cost: ~£53-£58k take-home foregone for £100k pension. Material wealth move.

QWhen should I NOT do bonus sacrifice?

(a) Need bonus for immediate purposes - house deposit, debt repayment, large purchase. (b) Currently basic-rate taxpayer - 32% effective rate doesn't justify locking until 55+. (c) Approaching Money Purchase Annual Allowance (MPAA) trigger - bonus sacrifice could push into the post-MPAA £10k cap. (d) Pension pot already at LSA / LSDBA limits - additional contributions trigger excess tax. (e) Tapered AA significantly reduces capacity + carry-forward exhausted - any sacrifice over AA triggers AA charge at marginal rate (effectively no tax saving). (f) Employer doesn't cooperate - some employers don't offer bonus sacrifice. Verify before bonus is paid. (g) Cash flow tight - if salary post-sacrifice would be inadequate for living costs.

QHow do I set up bonus sacrifice?

(1) Approach HR / payroll BEFORE bonus is announced or crystallises. (2) Confirm employer offers bonus sacrifice (most large UK employers do; some smaller employers don't). (3) Decide amount - typically 50-100% of bonus. Consider AA cap, MPAA, current vs future tax bands. (4) Sign sacrifice agreement - typically simple form before bonus payment date. (5) Confirm employer is paying additional contribution INTO YOUR pension (not just withholding). (6) Verify on payslip + pension statement - sacrifice should show as reduced taxable salary + increased employer pension contribution. (7) Check tax code adjustment + take-home pay calculations. Tax saving visible on monthly payslip + annual P60 / P11D.

QWhat about partial sacrifice + bonus split?

Sometimes optimal vs all-or-nothing. Common splits: (a) Sacrifice up to £60k AA limit, take rest as cash. (b) Sacrifice amount to bring income below £100k taper threshold, take rest as cash. (c) Sacrifice into pension + remainder as basic-rate tier Individual Savings Account (ISA) contribution. (d) Sacrifice + use carry-forward to maximise current year tax saving. (e) For lower-rate bonuses: sacrifice 50% giving 32-42% tax saving while keeping 50% for current lifestyle. Specific advice from accountant + financial planner for £20k+ bonuses can save thousands. Many employers also offer "Bonus Trading" - exchange bonus for additional holidays, childcare vouchers (closed scheme), share schemes - each with own tax treatment.