UK Student Loan Repayment Calculator
Estimate earnings-based repayments for one undergraduate plan and an optional postgraduate loan, using the reviewed 2026/27 thresholds.
Rule year: 2026/27 · GBP · Sources checked
Annualised student-loan repayment estimate
One undergraduate plan, optionally a postgraduate loan, ordinary UK repayment-relevant salary and current-year thresholds. No overseas thresholds, multiple undergraduate-plan allocation, self-assessment adjustments, loan payoff stop, write-off date or pay-period rounding. The entered income is not reduced by a net-pay pension.
For informational purposes only. This estimate is not financial advice, a tax return, a payroll calculation or a lender decision. See the supported circumstances and exclusions below.
How this calculator works
UK income-contingent repayments depend on earnings above the threshold for your plan, not simply loan balance and interest. The undergraduate model uses 9% of the excess; a postgraduate loan uses 6% over its own threshold and can run alongside it. Supply the relevant earnings after any applicable salary sacrifice. This annualised calculation does not round individual payroll deductions down to whole pounds or track a remaining loan balance.
Formula and rules
Undergraduate estimate = max(0, earnings − selected plan threshold) × 9%. Postgraduate estimate = max(0, earnings − 21,000) × 6%. Annualised total is their sum.
Assumptions and limitations
One undergraduate plan, optionally a postgraduate loan, ordinary UK repayment-relevant salary and current-year thresholds. No overseas thresholds, multiple undergraduate-plan allocation, self-assessment adjustments, loan payoff stop, write-off date or pay-period rounding. The entered income is not reduced by a net-pay pension.
Worked example
At £40,000 repayment-relevant salary, Plan 2 uses its £29,385 threshold: £10,615 × 9% = £955.35 annually. Adding a postgraduate loan contributes £19,000 × 6% = £1,140, for a £2,095.35 combined annualised estimate.
- Annualised student-loan repayment estimate
- £2,095.35
- Monthly average before payroll rounding
- £174.61
- Undergraduate repayment
- £955.35
- Postgraduate repayment
- £1,140.00
Official sources and review
Reviewed against the sources below on 2026-10-06. Rates are held in versioned rule modules. Versioned rules, official source review and year-specific calculation tests.
- HMRC: Rates and thresholds 2026 to 2027 ↗
Regional PAYE bands, Category A NI, student-loan plans and current minimum wage.
- GOV.UK: Student-loan repayment amounts ↗
Plan-based earnings deductions, postgraduate repayment and payroll-period limitations.
Common questions
Does the balance determine this payment?
Not in the income-contingent model. Earnings, repayment plan and applicable thresholds determine the ordinary deduction until the loan is repaid or another stopping rule applies.
Can undergraduate and postgraduate deductions run together?
Yes. The optional postgraduate calculation is added separately to the selected undergraduate plan.
Can I use this to decide when my loan is written off?
No. The calculator does not model remaining debt, interest, repayment history or write-off eligibility. It estimates current-year earnings deductions.