a free checker for UK side hustlers — 2026/27 tax year

Do I owe tax on my side hustle?

Vinted, eBay, Etsy, deliveries, freelancing, dog walking — whatever your hustle is, type in your numbers and get a straight answer. No sign-up, no email, nothing stored. I made this because working out my own first tax return nearly finished me off.

Your year so far

Rough figures are fine — you can tidy them later. This tax year runs 6 April 2026 to 5 April 2027.

Money in from the hustle Everything received, before any platform fees

What you spent on it Stock, postage, fees, materials, mileage

Day-job salary, if you have one Yearly, before tax — it sets your tax band

I'm only selling my own old belongings — clothes I've worn, the exercise bike I never used, that sort of thing. Not buying or making things to sell.

Type your money in above and the verdict gets stamped here.

Now keep it that painless all year

I turned my own messy system into a proper bookkeeping spreadsheet — log sales in seconds, and it watches the £1,000 line, works out your best deduction and tells you what to set aside. Your January self will want to buy you a pint.

Get the Side Hustle Books spreadsheet →