Billing and Invoicing SoftwareDevelopment
Send accurate invoices on time, see who has paid and who has not, and stop revenue leaking through forgotten bills.
Billing and Invoicing Software Development: what the work involves
Money is often lost between delivering a service and sending the invoice. Jobs finish but nobody raises the bill, recurring charges are remembered only when the client calls, and a half-paid invoice sits unnoticed for months. Hand-built Word and Excel invoices also invite arithmetic slips and duplicate numbers that embarrass you in front of clients and auditors.
We build billing around how you charge: one-time invoices, recurring subscriptions, milestone billing, time-and-material, or metered usage. Each invoice has line items, tax lines, terms and a status that advances from draft to sent, part-paid and settled. Payments are allocated against specific invoices, reminders go out on a schedule you control, and customer statements can be emailed or viewed in a portal. Where tax invoice formats are mandated, we generate to those layouts.
Core features
Invoice and credit-note engine
Sequential numbering, multiple tax lines, discounts and currencies, with credit notes that reference the invoice they correct.
Recurring billing
Subscriptions and retainers generate invoices on their cycle, with proration for mid-period changes and a review step before sending.
Order and delivery to invoice
Delivered quantities flow from challans or job completion into an invoice draft, so nothing delivered goes unbilled.
Payment allocation
Receipts by cash, bank transfer or online link are matched to one or many invoices, and advances are held as customer credit.
Dunning reminders
Polite scheduled emails or WhatsApp messages before and after due dates, escalating tone, stoppable per client.
Customer statements and portal
Clients log in to view invoices, download PDFs, check balances and see payment history without asking your accounts team.
What we get right before launch
Tax invoice compliance
Sales tax invoices carry required fields and, for some sellers, digital submission to the tax authority. We build the layout and integration your registration calls for, and confirm scope with your adviser.
Numbering and cancellations
Invoice numbers must not be reused or skipped silently. Cancelled invoices stay on record with a reason, and a credit note, not deletion, is how amounts are reversed.
Feeding the ledger
Billing that does not reach accounts creates a reconciliation chore. We post invoices and receipts to the ledger automatically or export vouchers in the format your accountant uses.
Tools and technology
- Next.js
- React
- TypeScript
- Node.js
- PostgreSQL
- Prisma
- Redis
- PDF generation
- Payment gateway APIs
- WhatsApp Business API
Common questions, answered
Can invoices go out automatically each month?
Yes. Recurring plans generate invoices on schedule and can email them directly, or wait in a review queue if you prefer a human check. Usage-based items can be attached before the run is finalised.
Can customers pay online?
Payment links can be added using gateways available to your business, with receipts allocated automatically against the invoice. Which gateways are possible depends on your merchant arrangement, which we help you assess.
Does it handle sales tax invoices?
We generate invoices with the tax lines and fields your registration requires and can integrate with FBR's invoicing system where it applies. Requirements differ by sector and province, so we verify them with you first.
What happens to our past invoices?
Historic invoices and open balances can be imported so statements are complete from day one. We load outstanding items bill by bill, which keeps ageing accurate and avoids a single lump opening balance.
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Ready to start your Billing and Invoicing Software Development project?
Tell us what you need and we will come back with a clear scope, timeline and the questions worth answering before any build starts.