Overpay or Invest

Plan 1 student loans explained

. Figures are for 2026–27 and are compared with GOV.UK every month. How we check.

Plan 1 is the oldest repayment plan. Its threshold sits below Plan 2’s but above Plan 5’s, and its write-off date depends on when you first borrowed.

Who is on Plan 1

You can’t choose your plan. If you’re unsure, see which student loan plan am I on?

The numbers

For 2026–27 the figures this site uses are:

That means a Plan 1 borrower on a given salary repays 9% of everything over £26,900. See how much will I repay? for the formula and worked examples.

When Plan 1 is written off

It depends on when you were paid the first loan for your course:

Whether you’ll clear a Plan 1 loan before it’s written off depends on your balance and salary, so the overpay question can come out differently from Plans 2 or 5. See should I overpay my student loan?

If you have more than one loan

If you hold Plan 1 alongside another plan, you make one deduction, calculated on the lowest threshold. See what if you have more than one student loan plan?

Checking your own position

Your plan, balance and repayment history are in your Student Loans Company online account. Use the calculator with “Plan 1” selected to see how your loan plays out and whether extra payments would make a difference.

Source: GOV.UK, Repaying your student loan. Figures are those used on this site for 2026–27.

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General information, not financial advice. Read the disclaimer.