UK Tax for Students: Part-Time Work, PAYE, Self-Employed and Refunds Explained
Earning while you study is common, but the tax rules can feel confusing. The basics are straightforward once you know how PAYE works, what happens if you have more than one job, and how self-employed income is reported. This guide explains the essentials for UK students, how to avoid overpaying, and what to do if you think you are due a refund.
The quick idea
- You pay income tax and National Insurance on earnings only if you go over the relevant thresholds in a tax year.
- Most part-time students do not cross the thresholds, so many pay little or nothing across the year.
- Tax is calculated per tax year (6 April to 5 April), not per academic year.
PAYE when you have a part-time job
Most student jobs are paid through PAYE. Your employer uses your tax code to work out deductions each payday and sends them to HMRC.
What to do at the start
- Give your employer your National Insurance number.
- Complete the starter checklist if you do not have a recent P45.
- Check the first payslip for your tax code and personal details.
Reading your payslip
- Look for lines for Income Tax and National Insurance.
- A basic tax code (often something like 1257L or similar) tells your employer how much income you can receive before tax is deducted across the year.
- If the code looks temporary or wrong, speak to payroll early.
Multiple jobs and zero-hour shifts
If you work two jobs, PAYE can over-deduct because each employer may apply assumptions about your free allowance. You can ask HMRC to allocate more of your allowance to one job so you are not taxed twice on the same slice of income. Keep all payslips and check the “year to date” figures match what you expect.
Student loans on your payslip
If you are in repayment and your income crosses the plan threshold, payroll will deduct student loan and possibly postgraduate loan payments. These are separate from income tax and will appear as their own lines. If you should not be in repayment yet, contact the Student Loans Company to correct your record.
National Insurance in brief
NI is separate from income tax. It is calculated each pay period and only applies once your pay for that week or month crosses the NI threshold. You can pay NI in a particular month even if your annual income ends up below the income tax threshold.
Holiday jobs and term-time fluctuations
PAYE is cumulative for many codes. If you earn a lot in a summer month and little during term, the system may balance out later. Keep an eye on your year-to-date totals. If you think too much has been deducted overall, you can claim a refund after the tax year, or sometimes during it if you stop working.
Self-employed income, freelancing and side gigs
If you earn from tutoring, design, content creation, marketplace sales, or any gig where no employer runs payroll for you, that is self-employed income.
What to do
- Keep simple records of dates, amounts, and business costs.
- Put aside a percentage of each payment for future tax.
- Register for Self Assessment if your self-employed profit crosses the registration thresholds or you need to disclose income.
- File your return on time and pay any bill by the deadlines.
Allowable costs examples
- Equipment or software used for your work
- Platform fees and payment processing charges
- Proportionate phone or internet costs where justifiable
Keep receipts. Only claim the business portion where there is mixed personal use.
Selling personal items vs trading
Selling your used clothes or old tech is usually not taxable if you sell at a loss and it is not a business. If you buy stock to sell for profit as a regular activity, HMRC may view it as trading income, which you should declare.
Tips to avoid overpaying
- Check your tax code on the first payslip and after any job change.
- Give your new employer a P45 so your year-to-date pay follows you.
- If you have two jobs, ask HMRC to split your allowance.
- Track totals across the whole tax year, not just one month.
How to claim a refund
You might be due a refund if you paid tax through PAYE but your total income for the year ended up below the thresholds, or if a temporary code over-deducted.
Route to claim
- Still working: payroll often corrects over the next pay cycles.
- Stopped working: you can claim online or by post using the relevant HMRC form for in-year repayments.
- After the tax year: HMRC usually auto-reconciles. You can also claim via your Personal Tax Account.
Keep your P60 (end-of-year certificate), P45s, and all payslips until everything is reconciled.
International students
Visa status does not change the basic tax rules on UK-earned income. If you work in the UK, UK tax rules apply. If you also have overseas income, the position can be more complex. Keep good records and seek advice if needed.
Simple checklist for student workers
- Confirm your NI number and check your tax code
- Keep payslips and track year-to-date figures
- Separate self-employed income and keep cost receipts
- Put aside money for tax if you freelance
- Check for refunds after the tax year
- Update HMRC if you move or change jobs
Understanding PAYE and the basics of self-employed income removes most tax stress while you study. Keep your documents tidy, glance at your payslip each month, and do a quick year-end check. If you think you have overpaid, claim the refund. Clear habits now mean fewer surprises and more of your money stays in your pocket.
