Example
Bonus of GBP 2,000 after tax
A worked example showing why a GBP 2,000 bonus usually feels smaller than the headline figure once marginal deductions are applied.
Scenario
You are receiving a £2,000 bonus. Before spending it mentally, it helps to know exactly how much will reach your bank account. The answer depends on your salary because bonuses are taxed as marginal income — added on top of your regular earnings and taxed at whatever rate applies to that slice.
The basic calculation: salary of £30,000 or £40,000
At either of these salaries, a £2,000 bonus keeps your combined gross well below the higher-rate threshold of £50,270. The entire bonus is taxed at basic rate, so the deductions are straightforward.
| Deduction | Rate | Amount | |---|---|---| | Income tax | 20% | £400 | | Employee NI | 8% | £160 | | Total deductions | | £560 | | Net bonus | | £1,440 |
You keep 72p in every £1 of the headline bonus. That figure holds for any salary up to around £48,270, where a £2,000 bonus would still clear inside the basic-rate band.
Near the higher-rate threshold: salary of £48,000
At £48,000, adding a £2,000 bonus takes your gross to £50,000 — still below £50,270. The entire bonus remains in the basic-rate band, so the result is identical: net bonus £1,440, you keep 72%.
If your base salary were £49,000, the first £1,270 of the bonus would be taxed at basic rate (20% + 8% = 28%) and the remaining £730 at higher rate (40% + 2% = 42%). In that scenario the net bonus would be roughly £1,399. The threshold is worth knowing if your salary is already close to £50,270.
With Plan 2 student loan
Plan 2 deductions apply at 9% on earnings above £27,295. A £2,000 bonus on top of a £30,000 salary means your annual gross rises to £32,000. The entire bonus sits above the £27,295 threshold, so the full £2,000 attracts a repayment charge.
| Deduction | Amount | |---|---| | Income tax (20%) | £400 | | Employee NI (8%) | £160 | | Plan 2 repayment (9%) | £180 | | Total deductions | £740 | | Net bonus | £1,260 |
With Plan 2 active you keep 63p in every £1 rather than 72p.
Comparison table: net bonus by salary and student loan status
| Base salary | No student loan | With Plan 2 | |---|---|---| | £30,000 | £1,440 | £1,260 | | £40,000 | £1,440 | £1,260 | | £48,000 | £1,440 | £1,260 |
All three salary rows show the same numbers because the bonus stays in the basic-rate band in every case, and Plan 2 is a flat 9% on any earnings above £27,295 regardless of whether you are at £30k or £48k.
What this means in practice
A £2,000 bonus is worth between £1,260 and £1,440 in actual cash, depending only on whether you have a Plan 2 loan. If you are comparing a bonus offer against a salary increase, note that a permanent £2,000 raise at £30,000 produces the same £1,440 annual net gain — but it also compounds in future years and may affect pension contributions.
Best next step
Run the bonus tax calculator with your own salary and student-loan setting, then read Bonus tax explained UK if you want the full rule layer behind these numbers.
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