Student Loans and Taxes in the UK
Learn how UK student loans affect your income tax, self-assessment, and tax code — including PAYE deductions and tax returns.
Fact checked by Dr. Lila Sharma, UK Education Policy Specialist
Key Takeaways
- •Student loan repayments aren’t technically a tax, but they’re collected via PAYE (employed) or Self Assessment (self–employed) alongside income tax.
- •Your tax code doesn’t change because of student loans; deductions are calculated separately on gross income above your repayment threshold.
- •Self–employed individuals declare profit (revenue minus expenses) on their tax return; repayments are calculated annually, not monthly.
- •Multiple income sources (e.g. employed + freelance) combine for repayment calculations — track PAYE and SA deductions to avoid overpayment.
- •No UK tax relief exists for student loan repayments or interest — you repay with post–tax income, unlike pension contributions.
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In this article
How Student Loan Repayments Affect Your Tax
Student loan repayments are not technically a tax, but they function in a similar way to income tax as they're calculated as a percentage of your income above a threshold. In the UK tax system, student loan repayments are collected through either:
- PAYE (Pay As You Earn) — if you're employed
- Self Assessment — if you're self‑employed or have additional income
Unlike income tax, student loan repayments don't affect your taxable income — you pay income tax on your gross income before student loan deductions are calculated. Use our student loan repayments calculator to see how repayments are calculated separately from income tax.
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Student Loans and Your Tax Code
Your student loan doesn't directly change your tax code, but you may see the letter 'Y' on your payslip which indicates that you're making student loan repayments. The repayment is calculated and deducted after income tax and National Insurance contributions.
Example: PAYE Deductions
For someone earning £35,000 per year with a Plan 2 loan:
- Income tax is calculated first on the taxable income
- Then National Insurance is deducted
- Then the student loan repayment is calculated (9% of income above £29,385)
- This would be approximately £58 per month in student loan repayments
Self‑Employed Individuals and Student Loans
If you're self‑employed, you'll declare your income through a Self Assessment tax return. HMRC will calculate your student loan repayments based on your profit (income minus allowable expenses) above the repayment threshold for your loan plan.
Unlike PAYE where repayments are made monthly, self‑employed individuals typically make student loan repayments annually or in instalments along with their income tax payments.
Multiple Sources of Income
If you have multiple sources of income (e.g., employed and self‑employed), HMRC considers your total income when calculating student loan repayments. This means you might:
- Make repayments through PAYE from your employment income
- Make additional repayments through Self Assessment based on other income
It's important to keep track of all repayments to ensure you don't overpay, especially if your total income is close to the threshold.
Tax Relief and Student Loan Interest
Unlike some countries, in the UK there is no tax relief available for student loan repayments or interest. This is because the income‑contingent nature of the loans already provides a form of protection — you only repay when earning above the threshold.
Student Loan Calculator UK Editorial Team
Editorial Team
This page is maintained by the Student Loan Calculator UK editorial team, checked against GOV.UK and Student Loans Company guidance. Read more about our editorial approach.
Related Resources
Calculate Your Student Loan Repayments
Use our calculators to see how student loan repayments affect your take‑home pay after tax