VAT built in
Add your VAT number and rate — 20% by default — once. Every quote and invoice calculates it automatically.
Free invoice app built for UK businesses
Free invoice app for the UK.
Create a professional invoice online built for UK businesses — GBP pricing, VAT built in, and a PDF ready to send in minutes. No accounting software, no card required.
VAT built inInvoice in GBPNo card required
Built for how UK businesses actually invoice.
GBP invoicingVAT built inNo card required
Free invoice app built for UK businesses
Everything a UK invoice needs.
From VAT to GBP pricing, FlexyInvoice handles the details that matter to UK trades and small businesses.
Invoice in GBP
Price every document in Pounds Sterling, formatted the way your clients expect.
Ready to share
Create a polished PDF and share it by email, or open a pre-written WhatsApp message from your own number.
GDPR-aware data handling
Client and business data is handled under the GDPR, in line with our Privacy Policy.
Made for real client work
Built around how UK businesses actually invoice.
From a workshop in Manchester to a home office in London, FlexyInvoice keeps VAT, banking details and client history ready for the next invoice.
- Add your VAT number, banking details and logo once.
- Track invoices as sent, paid, partially paid or overdue in GBP.
- Convert an accepted quote into an invoice without re-typing anything.
- Share a PDF and WhatsApp message from your own business number.
How it works
From job to invoice, VAT included.
You approve everything before the PDF exists.
Tell Flexy the job
Describe the client, work and price in your own words — Flexy adds VAT and totals in GBP.
Check the details
Review the VAT, GBP totals and banking details before anything becomes final.
Send and get paid
Create the PDF and share it over WhatsApp or email in seconds.
Common questions
Everything you need to get started.
Does FlexyInvoice calculate VAT for UK businesses?+
Yes. Set your VAT number and rate — 20% by default — once in your business profile, and every quote and invoice calculates it automatically.
Can I invoice in Pounds Sterling (GBP)?+
Yes. Set GBP as your business currency and every total is formatted the way your clients expect.
Is FlexyInvoice GDPR compliant?+
Yes. FlexyInvoice complies with the GDPR where applicable — see our Privacy Policy for the full details.
Can I share invoices over WhatsApp?+
Yes. Create the PDF and open a pre-written WhatsApp message from your own number, ready to send before you leave the job.
Start free
Invoice UK clients in minutes.
Start free, add your VAT details once, and send a professional GBP invoice before the job is even cold.
Running a Canadian business instead? See our Canada invoice generator