What a Pay Rise Actually Nets You After Tax: 2026/27 Worked Examples

The Basic Marginal Rate Picture

Before considering any special thresholds, here's what a pay rise nets at the standard bands for 2026/27:

(Note: NI is calculated on gross pay bands, not taxable income bands, so the exact crossover points differ slightly between income tax and NI thresholds — the table shows the combined effect once both apply.)

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The £100,000-£125,140 "60% Tax Trap"

This is the single most important threshold to understand when negotiating a pay rise for higher earners. Your personal allowance (£12,570) is withdrawn at £1 for every £2 of income above £100,000, fully gone by £125,140.

A pay rise that lands entirely within the £100,000-£125,140 band can mean keeping only around 38p of every additional £1 — a stark contrast to the 58p a straightforward higher-rate taxpayer below £100,000 would keep.

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Student Loans Add a Further Layer

If you have an active student loan, a pay rise pushing more income above your plan's threshold adds this repayment rate on top of income tax and NI — a basic-rate taxpayer with a Plan 2 loan effectively keeps around 63p of each additional £1 (72p minus the 9% student loan deduction), rather than 72p.

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The Child Benefit Clawback Zone (£60,000-£80,000)

If you or your partner receives Child Benefit, a pay rise pushing your adjusted net income above £60,000 starts triggering the High Income Child Benefit Charge:

For a family with two children receiving Child Benefit (£27.05/week for the first child + £17.90/week for the second, in 2026/27 — roughly £2,335/year combined), a pay rise crossing this band can effectively add a further layer of "tax" on top of standard income tax and NI, in the form of lost benefit, disproportionately affecting families with more children relative to the income increase received.

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Salary vs Pension Contribution: A Genuine Negotiating Alternative

For employees near these key thresholds, asking for the value of a pay rise to be directed into employer pension contributions instead of taxable salary can be significantly more tax-efficient, because:

• Employer pension contributions don't count as income for the personal allowance taper.
• They don't count towards adjusted net income for the Child Benefit charge calculation.
• They're not subject to income tax or NI at the point of contribution (tax is only paid later, on withdrawal in retirement, typically at a lower marginal rate for many people).

This isn't right for everyone — it locks the money away until pension access age — but it's a genuine, often underused negotiating option worth raising directly with an employer, particularly for anyone whose pay rise would otherwise land in the £100,000-£125,140 band or the £60,000-£80,000 Child Benefit clawback zone.

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Practical Takeaway for Negotiation

Before accepting or negotiating a pay rise, it's worth modelling where the new salary lands relative to these thresholds — the headline number matters far less than where it falls. A £10,000 rise from £45,000 to £55,000 nets a meaningfully different proportion than the same £10,000 rise from £98,000 to £108,000, even though the gross uplift is identical.