TikTok Shop profit counts towards student loan repayments

Sellers with a job and a student loan repay on shop profit through their tax return, not their payslip. The amount lands in full with the January tax bill.

If you have a student loan and sell on TikTok Shop alongside a job, your shop profit counts towards your loan repayments. Your employer only sees your salary, so nothing is taken from your payslip for it. The repayment is worked out on your tax return instead, and it lands in one amount with the tax bill on 31 January.

Why the payslip misses it

An employer takes 9 per cent of pay above the monthly threshold for your plan, pay period by pay period. It knows nothing about your shop. Once you file a Self Assessment return, gov.uk's guidance on what you repay says HMRC works out the repayment on your combined income for the whole year, then deducts anything your employer has already taken.

So a salary that sits just under the threshold all year, with no deductions, can still produce a repayment once the shop profit is added on top.

The thresholds for 2026 to 2027

Plan 1: £26,900 a year.
Plan 2: £29,385 a year.
Plan 4: £33,795 a year.
Plan 5: £25,000 a year.
Postgraduate Loan: £21,000 a year.

You repay 9 per cent of income above the threshold on Plans 1, 2, 4 and 5, and 6 per cent on a Postgraduate Loan. Thresholds are set for each tax year from 6 April, and not every plan's threshold moves, so check yours each spring.

One seller's January

Illustration, not a real person. Chloe works in Stratford on a £27,000 salary, £2,250 a month, and is on Plan 2. Her monthly pay is below the £2,448 monthly threshold, so her payslip shows no student loan deduction. In 2026 to 2027 she also makes £9,000 of profit from her TikTok Shop, after the platform's fees, her stock and the samples she sends to creators.

Combined income is £36,000, which is £6,615 above the Plan 2 threshold. Her student loan repayment is 9 per cent of that: £595.35.
Her salary has already used her Personal Allowance, so the shop profit is taxed at 20 per cent: £1,800 of Income Tax. Profit of £9,000 is below the level at which self-employed National Insurance starts.
This is her first return, and less than 80 per cent of her tax for the year was collected through PAYE, so HMRC also asks for a first payment on account towards next year, half of the £1,800: £900.

Her bill on 31 January 2028 comes to £3,295.35. The £595.35 of student loan is paid in full on that date, because HMRC's guidance puts anything owed for student loans in the balancing payment rather than in payments on account.

Profit, not sales

The repayment is worked out on profit, so every allowable cost reduces it as well as the tax. For a basic rate seller on Plan 2 and above the threshold, each £100 of genuine cost left off the return costs £20 of Income Tax and £9 of student loan repayment, and £6 more in National Insurance once profit passes £12,570. Fees, stock, postage, packaging and the products you send creators all belong on the return.

What to do before January

Check which plan you are on in your Student Loans Company account.
Add your expected shop profit to your salary and see how far the total sits above your threshold.
Set aside 9 per cent of the part above the threshold, on top of what you are saving for tax.
Keep the receipts for every cost. They lower both bills.

Our page for online sellers, TikTok Shop included, explains how we turn platform payouts into a profit figure HMRC will accept. Work out this year's number now, while there is still time to put the money aside.

About the author

Harvey Dhillon is Founder and CEO of Zmartly, an accountancy firm for ecommerce sellers. He grew up in West London and began his career in finance at Barclays, in investment banking and wealth management, before going full-time on Zmartly in 2020.

Featured photo by Liza Summer on Pexels.