The best free invoice generator for UK freelancers, sole traders, and limited companies. Create professional GBP invoices with VAT, total in words, and PAID watermark — no signup required. Built for UK contractors who need fast, HMRC-compliant billing.
UK Tax Tip: If you're VAT-registered, add 20% VAT using the Tax % field. Include your VAT registration number in the Notes. For sole traders, remember that invoice total in words ("One Thousand Pounds Only") is a legal requirement in the UK and is automatically generated by InvoiceFast.
Enter your business info, upload your logo, and set your client's details. If you're VAT-registered, add your VAT number in the Notes field.
List line items with quantities and rates. Apply 20% VAT using the Tax % field — the standard UK rate. Net 30 terms are set by default.
Download your PDF invoice instantly with total in words and PAID/DRAFT watermark. Track payment status in invoice history. Email to your UK client.
If you work as a freelancer, sole trader, or limited company in the United Kingdom, you need invoices that comply with HMRC requirements. InvoiceFast is a UK invoice generator built specifically for British freelancers, contractors, and small business owners who want to create professional invoices without paying for software.
Unlike generic invoice tools, InvoiceFast defaults to GBP (£) and follows UK billing conventions: Net 30 payment terms, automatic VAT calculation at 20%, and total in words — a legal requirement for UK invoices. Every invoice you create is stored locally in your browser.
When you invoice UK clients, your invoice serves as both a payment request and a legal record. Here is what a UK-compliant invoice should include:
InvoiceFast covers every requirement and generates a professional A4 PDF accepted by HMRC, UK banks, and enterprise AP departments.
If you are VAT-registered in the UK, your invoices must include:
VAT-registered businesses must issue VAT invoices within 30 days of the supply date. InvoiceFast helps you stay compliant by generating invoices instantly.
If you work in the UK construction industry as a subcontractor, you may need to invoice under the CIS scheme. Here is how to use InvoiceFast for CIS invoices:
QuickBooks and Xero charge £12–£30 per month — over £144–£360 per year — just to create and send invoices. For a UK freelancer or sole trader, that cost is unnecessary. InvoiceFast gives you the same professional PDF output at zero cost. No trial, no credit card, no feature paywalls. Every feature — GBP default, VAT calculation, total in words, invoice history, client database, PAID watermark — is 100% free forever.
If you are a UK-based freelancer, sole trader, or limited company looking for a free UK invoice generator that works in your browser with no signup, InvoiceFast is built for you.
We compare 5 top tools — including GBP and VAT support.
Read Guide →Everything a beginner needs — from creating invoices to tracking payment status.
Read Guide →Tips for getting paid faster — including duplicate invoices for repeat clients.
Read Guide →Contractor-specific invoice fields and payment tracking.
Read Guide →