UK Student Loan Calculator
Work out your monthly repayments, total cost, and write-off date for Plan 1, Plan 2, Plan 4, and Plan 5 loans. Calculations use your remaining balance with verified 2026/27 repayment thresholds and interest rates checked as of 11 July 2026, held constant for the projection.
We have pre-filled example figures (£35k salary, £45k loan). Replace these with your own details for accurate results.
Loan Details
Enter your salary and loan information
Loan plan
Started uni September 2012 onwards. England and Wales. Written off after 30 years.
Repayment thresholds: 2026/27 · Interest rates verified as of 11 July 2026
Projection holds these rates and thresholds constant.
Official defaults: repayment thresholds for 2026/27; interest verified as of 11 July 2026. Projections hold those values constant unless you change them below for a custom scenario.
Salary projection
To model extra monthly payments, use the overpayment section below your results.
Your results
Monthly Payment
£42
Loan written off: April 2055
28 years and 9 months
Projected interest accrued (includes amounts later written off)
April 2055
Salary at which repayments exceed monthly interest
Minimum salary to clear the loan before write-off
Summary
- You'll repay 32% of your loan (£14,529) before £111,696 is written off in April 2055.
- At this salary, the loan would still be written off even if you made extra repayments.
- Your balance is growing. Monthly interest (£147) is higher than your repayment (£42).
- At your salary, monthly repayments don't exceed interest. You'd need around £60,400 to start reducing your balance.
Monthly payslip
What-If Comparison
Drag the slider to compare a different salary against your current one. What-If uses mandatory repayments only (no overpayment).
Your Salary
What-If
Salary
£35,000
£35,000
Monthly
£42
£42
Payoff Time
Written off April 2055
Written off April 2055
Total Paid
£14,529
£14,529
Frequently Asked Questions
- When does a UK student loan get written off?
- Plan 1 loans taken out before September 2006 are written off when you turn 65. Plan 1 loans from September 2006 onwards are written off 25 years after the April you were first due to repay. Plan 2 loans are written off after 30 years. Plan 5 loans are written off after 40 years. Plan 4 (SAAS / Scotland) write-off depends on cohort: first loan payment on or after 1 August 2007 is usually 30 years after the April you were first due to repay; older loans can be written off at age 65 or after 30 years, whichever comes first. This calculator’s Plan 4 estimate uses only the newer 30-year rule. Any remaining balance is cancelled automatically.
- What is the repayment threshold for Plan 2?
- The Plan 2 repayment threshold for tax year 2026/27 is £29,385 per year (£2,448.75 per month for monthly payroll). You repay 9% of everything you earn above this threshold. If your income falls below the threshold, repayments stop automatically.
- What is the repayment threshold for Plan 4?
- The Plan 4 (SAAS / Scotland) repayment threshold for tax year 2026/27 is £33,795 per year (£2,816.25 per month for monthly payroll). You repay 9% of everything you earn above this threshold.
- How is student loan interest calculated?
- Interest uses academic-year rates (usually set from the previous March’s RPI on 1 September), not the tax year. Rates in this calculator are verified as of 11 July 2026: Plan 2 charges between RPI and RPI+3% after study (3.2%–6.2% through 31 August 2026). A 6% policy cap for Plan 2 and postgraduate loans applies from 1 September 2026. Plan 5 is RPI only. Plan 1 and Plan 4 use the lower of RPI or Bank Rate + 1%. Projections hold the verified snapshot constant.
- Is it worth overpaying my student loan?
- It depends. If you're unlikely to clear the full balance before it is written off, overpaying usually means paying more than you need to. The rest is cancelled anyway. If you will repay in full either way, overpaying can save interest. Use the overpayment section above to compare the numbers for your situation.
- What happens if I don't earn above the repayment threshold?
- If your income is below the threshold, you make no repayments that year. Your loan continues to accrue interest but you owe nothing until your income rises above the threshold again. This has no negative impact on your credit score.
Guides
Monthly
£42
Payoff
Write-off Apr 2055
Total cost
£14,529