Free tools for UK freelancers & small businesses
No sign-up. No data leaves your browser. Generate invoices, work out your tax, track expenses and price your work confidently.
Open Invoice Generator Calculate My TaxAll tools
Invoice Generator
Create professional invoices with line items, VAT and a downloadable PDF preview.
🧾VAT Invoice Template
HMRC-style VAT invoice with multiple VAT rates, VAT breakdown and reverse-charge support.
📊Self-Employed Tax Calculator
UK 2025/26 income tax, Class 4 NI and personal allowance taper. Estimate your take-home.
💼Expense Tracker
Log business expenses by category, see monthly totals and export a CSV for your accountant.
📈Profit Margin Calculator
Work out gross margin, markup and break-even units for any product or service.
Why FreelanceToolkit?
Running a freelance business or microbusiness in the UK shouldn't mean wrestling with spreadsheets or paying for a subscription just to send a single invoice. FreelanceToolkit is a focused set of small, dependable utilities that do one thing each, very well.
Privacy first. Every calculation runs entirely in your browser. We don't store your invoices, expenses, or tax inputs on any server. Saved data lives in your browser's local storage, on your device only.
Built for UK rules. The tax calculator uses 2025/26 income tax bands, Class 4 National Insurance and the personal allowance taper above £100,000. The VAT invoice generator follows HMRC's required information for a full VAT invoice.
Free, with ads. The site is supported by display advertising. We never charge for any tool and never paywall a feature.