Side Hustle Tax Calculator
Selling, freelancing, content creation or any other side income? See whether you owe tax, how much, and whether you need to register for Self Assessment, using the £1,000 tax-free trading allowance and your marginal tax rate.
Estimate only. This is an estimate for information only, not tax advice. Get a precise figure from HMRC's own tools or an accountant before filing.
Enter your side income
Your taxable profit, estimated tax and take-home from your side hustle appear here as you type.
How side-hustle income is actually taxed
The first £1,000 of gross income from things like selling, freelancing, content creation or casual gig work each tax year is completely tax-free under the trading allowance, and you don't need to report it. Above £1,000, you're taxed on your profit, income minus whichever is bigger, the £1,000 allowance or your actual allowable expenses (never both at once). That profit is added on top of any other income you have, like a main job salary, and taxed at whatever rate that combined income reaches, so a side hustle can easily push some of your profit into a higher tax band if your main income is already close to a threshold. On top of Income Tax, self-employment profit above £12,570 also attracts Class 4 National Insurance at 6% (2% above £50,270), calculated on the profit alone regardless of any NI you already pay through a main job.
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