Business Software
Billing & Invoicing Software
GST-compliant invoices in seconds, and payment follow-up that happens on its own.
- Typical timeline
- 5-9 weeks depending on compliance scope
- Category
- Business Software
- Engagement
- Fixed-scope phases
- You receive
- Code, data & documentation
Overview
Billing is where operational problems turn into cash flow problems. Slow invoicing delays payment, incorrect tax treatment creates compliance risk, and receivables that nobody chases become bad debt. We build billing that is quick at the counter and rigorous underneath.
Invoices go out late, and payments are chased from memory
Invoices are typed in Word or built in Excel, numbering gets out of sequence, and tax is calculated by hand. Nobody has a current list of who owes what and for how long, so collection depends on whoever happens to remember a pending amount.
You will recognise this if
- Making one invoice takes several minutes of typing and checking
- Tax rates and place-of-supply treatment are decided case by case
- Nobody can produce a current ageing report of outstanding payments
- Customers are reminded about overdue amounts only when cash gets tight
What you get out of it
The difference this makes
Invoices in seconds
Saved customers, items and price lists mean an invoice is a few keystrokes, with taxes and totals computed correctly every time.
Compliance built in
Sequential numbering, correct tax treatment by place of supply, and e-invoice and e-way bill support where your turnover requires them.
Receivables under control
A live ageing view plus automated reminders over WhatsApp and email materially shortens how long money sits outstanding.
Clean handover to your accountant
Exports and Tally integration mean your accountant works from your data rather than re-entering it.
What we build
- Fast invoice entry with keyboard shortcuts and saved masters
- GST handling: CGST, SGST, IGST, cess, reverse charge and place-of-supply logic
- Proforma invoices, delivery challans, credit and debit notes
- E-invoice (IRN) and e-way bill generation through a GSP where applicable
- Multiple price lists, customer-specific rates and discount rules
- Payment recording with part payments, advances and adjustments
- Ageing analysis and automated payment reminders
- Recurring invoices for subscriptions and contracts
- Thermal and A4 print formats, plus WhatsApp and email delivery
- Exports and Tally integration
How it gets used
A wholesaler issuing hundreds of invoices a day
Counter billing with barcode entry and automatic stock deduction, with the day's invoices pushed to accounts in one batch.
A services firm on retainers
Recurring invoices generate and send on schedule, with reminder sequences running until payment is recorded.
A supplier managing credit customers
Credit limits and overdue checks are enforced at invoice creation, preventing further supply to accounts already beyond terms.
Technology we typically use
You do not need to care about this list — but your next developer will.
- Next.js
- PostgreSQL
- FastAPI
- GSP e-invoicing APIs
- WhatsApp Business API
- PDF generation
Timeline: Typically 5-9 weeks depending on compliance scope
Questions
Billing & Invoicing Software — common questions
Something else on your mind? Ask us directly — it is usually faster than reading.
Is it GST compliant?
Can it replace Tally?
Does it work offline?
Related services
Businesses that need this often need one of these as well.
Thinking about billing & invoicing software?
Tell us about your situation. We will tell you whether this is the right service, what it would involve, and roughly what it would cost.