Terms of Use
These terms apply when you use SoleTraderTaxCalculator.co.uk, its calculators, guides and downloads. By using the site you accept them. They sit alongside our disclaimer, privacy policy and cookie policy. Last updated: 4 November 2026.
Written and reviewed by James Whitfield · Last reviewed 4 November 2026 · Checked against 2026/27 HMRC rates · Editorial standards · Methodology
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What the site provides
Free calculators and guides about UK tax for sole traders and the self-employed, for the tax years shown on each page. The calculators apply HMRC-published rates to the figures you enter, using a simplified model described on our methodology page.
Results are estimates for planning and comparison. They are not a tax calculation from HMRC, a tax return, or tax, accounting or financial advice, and they do not take account of everything in your circumstances.
Using the estimates
Do not use an estimate from this site as the basis for a tax return, a payment to HMRC, a legal arrangement or a decision with significant financial consequences without checking it against your HMRC online account, GOV.UK or a qualified adviser.
The calculator does not include everything that can affect a tax bill. Our disclaimer lists the main things it leaves out.
Accuracy and updates
We check rates and thresholds against GOV.UK and HMRC guidance at each Budget and before each new tax year, and the calculators against a separate reference version of the rules. We correct errors when we find them or when they are reported. We cannot promise that every page is free of errors at every moment, so each page links to the official sources it relies on.
Things you can buy
Some pages offer an optional paid download, such as the Sole Trader's Tax Survival Pack or a full tax bill plan. Payment is taken by Stripe at the price shown before you pay; it is a one-off payment, not a subscription. After paying you are taken to a download page.
If a download is not what you needed, or does not work, contact us through the contact page and we will refund you in full. Downloads are for your own use; please do not resell or republish them.
Fair use of the site
You may use the calculators and read the guides for your own purposes and link to any page. Please do not copy guides wholesale onto another site, or run automated tools that request pages in bulk: the site limits automated traffic to keep it fast for everyone.
Links to other sites
We link to GOV.UK, HMRC and other official sources so you can check our figures, and occasionally to other services. We are not responsible for the content of other sites, and a link is not an endorsement.
Changes to these terms
We may update these terms, for example when we add a new tool or product. The date at the top shows when they last changed. If you have a question about them, use the contact page.
Estimate your sole trader tax
The sole trader tax calculator turns this guidance into a concrete monthly take-home and tax reserve estimate, based on 2026/27 HMRC rates. Enter taxable profit — not turnover.