Fast Invoice

Fast Invoice — Simple invoicing and receivables for your business

Fast Invoice is the fastest way to create professional invoices, record payments, and stay on top of what your customers owe you — right from your phone or tablet. Built for small businesses, wholesalers, and service providers who want clean invoices and clear books without the busywork.

Part of the Fast business suite, Fast Invoice connects to your existing account so your customers, catalog, taxes, and payments stay in sync across every device.

WHY FAST INVOICE

• Create and send a polished invoice in seconds

• Always know your total receivables and who's overdue

• Works offline — your data lives on your device and syncs automatically

• Clean, professional PDFs for invoices, receipts, and statements

CREATE INVOICES YOUR WAY

• Add line items as free text or pick products from your catalog

• Apply per-line discounts and taxes with live totals

• Save as a draft and finish later, then publish when ready

• Set issue and due dates, add notes and terms

GET PAID FASTER

• Record full or partial payments against any invoice

• Multiple payment methods — cash, bank transfer, card, cheque, and more

• Instant payment receipts you can share

• See paid, partial, unpaid, and overdue status at a glance

CUSTOMERS & RECEIVABLES

• A complete customer directory with running balances

• Per-customer ledger showing every invoice and payment

• Aging overview so overdue accounts never slip through

• Call, message, or send a WhatsApp reminder in one tap

PROFESSIONAL DOCUMENTS

• Beautifully formatted invoice PDFs

• Payment receipts and advice slips

• Full customer statements for any period

• Print or share via email, WhatsApp, or any app

WORKS OFFLINE, SYNCS AUTOMATICALLY

Fast Invoice reads everything from your device, so lists and details open instantly — no waiting, even on a weak connection. Record payments on the go and they sync the moment you're back online. Nothing gets lost.

BUILT FOR PHONE AND TABLET

A focused, one-handed experience on your phone and a spacious dashboard layout adapted to every screen.

MANAGE MULTIPLE BUSINESSES

Switch between the businesses and stores you have access to without logging out.

Note: Fast Invoice is a companion app for businesses on the Fast platform. An existing account is required to sign in.

Questions or feedback? We'd love to hear from you.