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Student Loan Repayment Calculator

Calculate your monthly student loan repayments based on your salary and loan plan. See exactly how much comes out of your pay and when you'll clear the debt.

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2024/25 UK Student Loan Plans
Plan 1
Threshold: £24,990/yr
Rate: 9% above threshold
Interest: RPI (max 3.1%)
Write-off: 25 years
Plan 2 (most graduates post-2012)
Threshold: £27,295/yr
Rate: 9% above threshold
Interest: RPI + 0–3%
Write-off: 30 years
Plan 5 (from Sept 2023)
Threshold: £25,000/yr
Rate: 9% above threshold
Interest: RPI only
Write-off: 40 years
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Enter your salary and loan balance to calculate your monthly repayments.

How Student Loan Repayments Work

You repay 9% of everything you earn above the repayment threshold — not 9% of your total salary. If you earn £30,000 on Plan 2, you repay 9% of £30,000 − £27,295 = 9% of £2,705 = £243.45 per year (£20.29/month). Repayments are collected automatically through PAYE, like tax.

The key insight most graduates miss: if your loan isn't repaid by the write-off date, the remainder is cancelled — you never pay it back. For many lower-to-middle earners on Plan 2, paying extra isn't financially beneficial because the loan writes off before they'd finish repaying it anyway.

For most Plan 2 borrowers, voluntary overpayments don't make financial sense. The loan carries interest (RPI + up to 3%), but the key question is whether you'll repay the full balance before write-off. For most average earners, the loan writes off after 30 years with significant balance remaining — so overpaying just means paying more than you would have had to. High earners who will definitely repay the full balance before write-off may benefit from overpaying to reduce interest. Use a detailed repayment calculator to model your specific situation.
Student loan repayments reduce your take-home pay, which reduces your "affordability" calculation for a mortgage. Lenders typically calculate maximum borrowing as 4–4.5× your net income after student loan deductions. However, student loan debt does not appear on your credit file and does not affect your credit score — lenders assess it purely as a monthly outgoing, similar to a car finance payment. The impact varies significantly by lender and your specific salary.
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