Student loan calculator
Estimate your repayments based on your income and loan plan.
Estimate monthly UK payroll deductions for one student loan plan in 2026/27. The model assumes the same salary each month and rounds each monthly deduction down to whole pounds.
Example calculation
Based on the example figures in the form. Enter your own details, then select Calculate.
Estimated monthly repayment
£42.00
- Annual salary
- £35,000.00
- Annual plan threshold
- £29,385.00
- Total over 12 equal monthly pays
- £504.00
An estimate based on the assumptions below. For information only, not financial advice.
How this is calculated
2026/27 thresholds. Assumes UK employment, one loan plan and the same salary in each monthly pay period. Monthly deductions are rounded down to whole pounds. Excludes concurrent plans, overseas repayments, bonuses, Self Assessment and final balance adjustments.
Source: GOV.UK — student loan repayments. Checked 6 September 2026.
Calculation method
Monthly deduction = floor(max(0, monthly salary − monthly threshold) × repayment rate)
The published monthly thresholds used here are £2,241 for Plan 1, £2,448 for Plan 2, £2,816 for Plan 4, £2,083 for Plan 5 and £1,750 for postgraduate loans. Undergraduate plans use 9% of earnings above the threshold; postgraduate loans use 6%. The annual result is twelve equal monthly deductions.
Worked example
A salary of £30,000 gives £2,500 monthly pay. On Plan 2, £52 is above the £2,448 monthly threshold. Nine per cent is £4.68, rounded down to a £4 monthly deduction, or £48 over twelve identical pay periods.
Method documented: · How we check calculations · Report an error
Common questions
Can I calculate an undergraduate and postgraduate loan together?
Not in this version. Select a single plan only. Combined plans have additional repayment rules explained in the GOV.UK source.
Does the balance I owe affect the result?
The model calculates income-based deductions, not a balance repayment schedule. It does not cap the final payment to your remaining balance or estimate the loan’s write-off date.
What if I receive a bonus or work overseas?
Unequal pay periods, overseas earnings and Self Assessment can require different calculations. This estimate assumes UK monthly employment with equal pay.