For UK freelancers and sole traders
Free tax tools that keep your numbers private
Estimate your Self Assessment tax bill, work out VAT and create invoices in seconds. No sign-up, and nothing you type leaves your browser.
Our tools
Three tools that cover the jobs you do most often.
UK Self-Employed Tax Calculator
Work out your Income Tax, Class 4 National Insurance and take-home pay from your profit.
Open toolUK VAT Calculator
Add or remove VAT at 20%, 5%, 0% or a custom rate. Includes Flat Rate Scheme mode.
Open toolInvoice Generator
Create a professional invoice, preview it live and download a PDF. Nothing leaves your browser.
Open tool
Private by design
Calculations run in your browser. Your numbers are never sent to us.
Free, no sign-up
No account, no email, no paywall. Open a tool and use it.
Built on gov.uk figures
Rates and thresholds come from gov.uk, with the tax year shown on every tool.
Who it's for
Freelancers
Designers, developers, writers and consultants who invoice clients and file a Self Assessment return.
Sole traders
Trades, shops and small service businesses that want a quick check on tax and VAT figures.
Side hustlers
People with a job and extra self-employed income who want to see what they will owe.
Our tools give estimates only, not tax advice. For decisions about your own tax, check with HMRC or a qualified accountant. Read the disclaimer.