UK Student Loan Repayment Calculator
UK student loan repayments are linked to earnings — you only repay when you earn above your plan's threshold. This calculator shows your monthly repayment and whether you'll repay in full or reach write-off.
Educational estimate. Calculator results are for planning and information only, not financial, tax, medical, legal, or engineering advice. Verify important decisions with official sources or a qualified professional.
UK Student Loan Repayment Calculator
Plan 1, Plan 2, Plan 4 & Plan 5
📐 Formula & Method
UK Student Loan Repayment
2024-25 thresholds: Plan 1 £24,990 | Plan 2 £27,295 | Plan 4 £31,395 | Plan 5 £25,000. Interest: Plan 1 & 4: 6.25% | Plan 2: RPI+3% (max 7.3%) | Plan 5: RPI+3%.
📋 How to Use
-
1
Enter your current loan balance.
-
2
Select your repayment plan.
-
3
Enter your current salary and expected growth.
-
4
See monthly repayment, years to repay, and write-off projection.
UK Student Loans — Will You Ever Pay It Off?
Unlike US student loans, UK loans are written off after a set period regardless of balance: Plan 1 at age 65, Plan 2 after 30 years, Plan 4 after 30 years, Plan 5 after 40 years. Most Plan 2 borrowers with typical graduate salaries are projected to never repay in full.
Plan 5 (for those starting from August 2023) has a lower repayment threshold (£25,000) and a longer 40-year write-off term, meaning more graduates will repay a larger portion of their loan.
🔬 Methodology & Accuracy
Formula: Uses the standard mathematical formula shown in the Formula & Method section above. All computations run client-side in your browser — no data is sent to our servers.
Data sources: Tax bands, contribution limits and regulatory rates are taken from official US (IRS, SSA) and UK (HMRC, gov.uk) publications for the current tax year, and updated when bands change.
Last reviewed: January 2025 · Accuracy: Results are precise to two decimal places using IEEE-754 double-precision arithmetic. Intended for educational and planning use only.
For informational purposes only. Results are estimates based on the inputs and formulas provided. For financial, tax, medical, or legal decisions, consult a qualified professional. Rates and regulations change — always verify current figures with official sources.