To keep your eligibility, the specific figure you need to manage is your Adjusted Net Income (ANI). This is not just your "take-home" pay; it is a specific calculation used by HMRC.
As an employee, your salary is fixed, but you have several "levers" to pull to lower your taxable salary or increase your deductions.
Increasing your pension contribution is the most efficient way to reduce ANI because you are saving the money for yourself rather than giving it away. The total amount that you, your employer, and any third parties can pay into your combined pensions is £60,000.
Impact: The cost is deducted from your gross salary before tax. A £2,000 electric bike purchase reduces your taxable income by exactly £2,000.
Impact: The sacrifice amount comes off your gross salary.
Note: You must add back the "Benefit in Kind" (BiK) value of the car (~2%), but the net effect is usually a significant reduction.
Many large employers allow you to "buy" up to 5 extra days of holiday. The cost is deducted from your gross salary.
Formula: Donation Amount × 1.25 = Deduction Value.
Example: You donate £800. The charity claims Gift Aid making it £1,000. You deduct £1,000 from your ANI.
Make a lump sum payment into a SIPP before April 5th. Like employees, you deduct the GROSS contribution (Payment + 20% tax relief) from your total income.
If you buy equipment (computers, machinery) before April 5th, you can claim the Annual Investment Allowance (AIA) to deduct the full cost from this year's profits.
Ensure you have claimed every legitimate expense: Professional subscriptions, use of home as office, travel costs, training courses.
| Method | Employee | Self-Employed | Impact |
|---|---|---|---|
| Pension (Salary Sacrifice) | ✅ | ❌ | High |
| Pension (SIPP) | ✅ | ✅ | High |
| Cycle to Work / EV | ✅ | ❌ | Med/High |
| Capital Allowances | ❌ | ✅ | High |
| Buying Holiday | ✅ | ❌ | Low/Med |
| Gift Aid Donations | ✅ | ✅ | Moderate |