Free invoicing & payment collection for freelancers and small businesses
Create GST invoices, let customers fill their own details, collect UPI or online payments — even in parts — and send WhatsApp confirmations. Excel reports in one click.
Everything you need to bill and get paid
Built for freelancers, agencies, consultants, tutors and small companies across India.
GST invoices in 30 seconds
Auto CGST/SGST or IGST from states, HSN/SAC, discount, amount in words, print or PDF.
Customer self-fill forms
Share a link. Customers fill company name, contact, email, GSTIN, billing address + your custom fields.
WhatsApp OTP login & sharing
No passwords. Send invoices and payment confirmations on WhatsApp in one tap.
Get paid your way
UPI QR on every invoice, optional Razorpay for cards/netbanking, bank details printed.
Partial payments
Record advances and part payments. Balance updates automatically; customers can pay part online.
Pending vs collected
Dashboard for billed, collected, pending and overdue. Full invoice and payment history.
Excel reports
Download invoices, payments and customer outstanding as .xlsx for your CA.
Private & secure
Encrypted session, per-invoice secret links, payment keys stored encrypted.
How it works
- Login with your WhatsApp number — no password.
- Create a customer form and share the link, or add customers yourself.
- Set the amount — the GST invoice is generated and sent on WhatsApp with a pay link.
- Customer pays by UPI or online. Mark paid (or it auto-confirms) and a receipt goes out.
- Track pending vs collected and download Excel reports anytime.
Recurring fees, EMIs & subscriptions? Collect them automatically with FastFee Book & Pay — reminders, autopay & receipts on WhatsApp.
FAQ
Is FastFee Billing really free?
Yes. Creating invoices, customers, forms, payment tracking and Excel reports is free.
Do customers pay me directly?
Yes. UPI payments go to your own UPI ID, and online payments go to your own Razorpay account. FastFee never holds your money.
Can I record partial payments?
Yes. Record any amount up to the balance; the invoice moves to “Partially paid” and shows the remaining balance to the customer.
Can I make non-GST invoices?
Yes. Leave GSTIN empty and choose “No GST” — the document prints as a plain invoice.
A product by FastFee