Free UK VAT Invoice Generator
for Freelancers & Small Businesses
Create professional UK invoices in Pounds Sterling (£) with automatic 20% VAT calculation. FluxInvoice is built for UK freelancers and sole traders — 100% free, no sign-up, and your data never leaves your browser.
Create My UK VAT Invoice — FreeNo account needed. Instant PDF download.
GBP Currency by Default
Invoices are pre-configured with British Pounds (£). Perfect for billing UK clients and HMRC-friendly invoicing.
20% VAT Calculation
UK standard VAT is 20%. Enter 20 in the VAT field and FluxInvoice automatically calculates the correct VAT amount.
GDPR-Friendly by Design
Your business and client data is never sent to any server. FluxInvoice is 100% client-side — fully GDPR compliant by design.
DD/MM/YYYY Date Format
Invoices use the correct UK date format (18 Jun 2026) — not the confusing American MM/DD format.
Professional PDF Download
Download a clean, watermark-free PDF invoice ready to email to clients or submit to your accountant.
100% Free Forever
No subscription plans. No watermarks. FluxInvoice is completely free for UK freelancers and sole traders.
Common Questions
Do I need to be VAT registered to use this invoice?
No. You only need to charge VAT if your business is registered for VAT (typically once your turnover exceeds £90,000 per year). If you are not registered, simply leave the VAT rate at 0% and FluxInvoice will generate a standard invoice without the VAT line.
Where do I put my VAT registration number?
Use the 'VAT / Tax ID' field in the 'Your Business' section. Your VAT number (e.g. GB123456789) will appear on the generated PDF invoice, which is required for HMRC-compliant VAT invoices.
Is this compliant with HMRC invoice requirements?
FluxInvoice generates invoices with the key information HMRC requires: your business name, address, VAT number, invoice date, a unique invoice number, a clear description of goods/services, and the VAT amount charged.