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How UK student loan repayments actually work

Guides4 min read5 May 2026

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Student loan repayment thresholds for 2026/27, the 9% and 6% rules, interest, write-off dates for each plan, worked examples, self-employed repayments and whether overpaying makes sense.

A UK student loan behaves more like a graduate tax than a normal debt. What you repay each month depends on what you earn, not on how much you borrowed, and any balance left after a set period is written off. Understanding the rules for your plan is the key to budgeting and to deciding whether overpaying makes sense.

Which plan are you on?

You can check your plan in your online Student Loans Company account.

The basic rule

You repay 9% of your income above your plan's threshold, or 6% for postgraduate loans. If you are employed, repayments are taken through PAYE automatically. Earn below the threshold in a pay period and you pay nothing that period.

Thresholds for 2026/27

Thresholds are normally reviewed each April.

Worked examples

Notice that the balance doesn't affect the monthly repayment.

Interest

Interest is linked to the Retail Prices Index (RPI). For Plan 2, it ranges from RPI while studying and for lower earners, up to RPI plus 3% for higher earners, subject to caps. For 1 September 2026 to 31 August 2027, the government has capped Plan 2 interest at 6%, so no Plan 2 borrower pays more than 6% in that year (RPI is 4.1%). Plan 5 interest is set at RPI. Plan 1 and Plan 4 interest is the lower of RPI or the Bank of England base rate plus 1%. Check current rates on GOV.UK, as they change.

When loans are written off?

Loans are also cancelled if you die, or in some cases if you are permanently unable to work because of disability.

Self-employed and other income

If you are self-employed, or have untaxed income above £2,000, repayments are calculated through your Self Assessment tax return and paid with your tax bill.

Moving abroad

If you leave the UK for more than three months, you must tell the Student Loans Company. Overseas repayments are set using thresholds for your country of residence, and failing to keep in touch can lead to fixed repayments.

Should you overpay?

For many Plan 2 borrowers, the loan will be written off before it's repaid, so overpaying simply means paying more overall. Overpaying tends to make sense only for higher earners likely to clear the balance anyway, or for borrowers with small balances. Plan 5's lower threshold and 40-year term mean more borrowers will repay in full. Use the government's repayment calculator, and compare with other priorities such as paying off expensive debt or saving into a pension.

Check your deductions

Frequently asked questions

Does a student loan affect my credit score?

Student loans from the SLC don't appear on credit files, but lenders may ask about them, and repayments reduce your take-home pay, which affects affordability.

Can I pay off a student loan early?

Yes, at any time, without penalty. Whether it's worth doing depends on your likely earnings.

Sources and further reading

Facts checked on 20 October 2026. Spotted an error? Tell us and we will correct it.

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