Student Loan Repayment Calculator
Monthly repayment, years to clear, and how much gets written off.
How to Use This Calculator
Enter your student loan balance, annual salary, and select your loan plan (Plan 1, Plan 2, Plan 4, Plan 5, or Postgraduate Loan). The calculator instantly shows your monthly repayment, total amount repaid, and how much may be written off.
Expand "More options" to set an expected salary growth rate. This gives you a more realistic projection of your repayments over the full loan term, as your salary — and therefore your repayments — are likely to increase each year.
Share your result
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The Formula
Student loan repayments in the UK are income-contingent. You only repay when your income exceeds the threshold for your plan, and the amount is a fixed percentage of earnings above that threshold.
Plan Thresholds & Rates — 2025/26
Write-off periods
Any remaining balance is written off after the write-off period. Plan 2 loans are written off after 30 years from the April after you graduated. Plan 5 loans are written off after 40 years. Plan 1 and Plan 4 loans are written off when you turn 65 or 25 years after the April you were first eligible to repay (whichever comes first).
Example
Alex — Plan 2, typical graduate salary
Alex graduated in 2020 with a £45,000 student loan balance and earns £35,000 per year. He wants to know how much he'll actually repay before the loan is written off.
His annual repayment is calculated as:
With 3% annual salary growth, Alex repays approximately £28,000 over the 30-year term. The remaining ∼£17,000 is written off — meaning he never repays the full balance. For most Plan 2 borrowers on average salaries, this is the typical outcome.