Built for freelancers and studios
Invoices without the spreadsheet chaos.
BillFlow turns billing into three minutes of work: build the invoice, send a link your client can pay without signing in, and see exactly what you have earned, what is outstanding and what has slipped past its due date.
Free while you send your first invoices. No card, no setup call.
Aria Design Studio
studio@ariadesign.in
Billed to
Northwind Traders
Issued 12 Aug · Due 26 Aug 2026
Invoice
INV-0042
- Brand identity system1 × 48,000₹48,000
- Landing page design1 × 32,000₹32,000
- Design QA6 hrs × 1,500₹9,000
- Subtotal
- ₹89,000
- Discount (5%)
- −₹4,450
- GST 18%
- ₹15,219
- Total
- ₹99,769
Paid 19 Aug 2026 · reference PAY-8c31f0a2
Everything between “I finished the work” and “the money arrived”.
Create
Unlimited line items, per-invoice tax and discount, and totals that recalculate as you type. Your prefix and next number are applied for you.
Send
Email the invoice or hand over a private link. Your client opens it in a browser - no account, no app, no PDF attachment to lose.
Track
Draft, sent, paid - and overdue the moment a due date passes, without anyone remembering to change it. Every send, view and reminder is logged.
Get paid
One tap on the public page settles the invoice, stamps the paid date and updates your dashboard and client totals in the same breath.
Three steps, start to paid
- STEP 1
Add a client
Name and email is enough to start. Everything else can wait.
- STEP 2
Build the invoice
Line items, tax, discount, notes. The total is always live at the bottom.
- STEP 3
Share and get paid
Send it, then watch the status change from sent to paid on its own.
Send your first invoice today
No card, no setup call. An account and a client is all it takes.