Does receiving a bonus increase my student loan repayment?

Full answer

Student loan repayments through PAYE are calculated on a non-cumulative, pay-period basis, which means each payslip is assessed in isolation against the monthly (or weekly) equivalent of your plan's annual threshold, rather than against your income across the whole tax year. If you receive a bonus, it is simply added to your normal salary for that pay period, and the student loan repayment is calculated on the combined total. For example, someone on a Plan 2 loan earning £2,500 a month (£30,000 a year, below the £29,385 annual threshold's monthly equivalent of roughly £2,449) who receives a one-off £3,000 bonus in December would have that month's pay assessed as £5,500, well above the monthly threshold, triggering a Plan 2 repayment of 9% on the excess for that month alone -- even though their regular annual salary barely clears the yearly threshold. Crucially, and unlike Income Tax, student loan deductions calculated this way are not automatically reconciled or refunded at the end of the tax year if your total annual income turns out to be below the annual threshold once averaged out -- HMRC's student loan mechanism through PAYE does not "smooth" repayments across the year the same way cumulative Income Tax does. If this happens to you, you can contact the Student Loans Company directly to check your annual repayment position and, in some circumstances, request a refund of any amount overpaid relative to your genuine annual income, though this is a manual process rather than an automatic one.

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