Custom Billing Software Development

When invoices depend on rules that a standard accounting tool cannot express, teams fall back on spreadsheets and late-night checks. Custom billing software development at Mind Over Matter Technologies (MOMT) turns those rules into a system: rate cards, contracts, recurring and usage charges, taxes, approvals and payments, all producing invoices you can trust. We are a software team based in Surat, Gujarat, and we build billing systems for businesses across India and abroad, working remotely with a demo every week.

Billing models we build for

• Recurring and subscription billing with plan changes, proration, trials and renewals.
• Usage-based billing from meter readings, API calls, deliveries, hours or any count your operations record.
• Project and milestone billing for agencies, contractors and consultancies, with time entries and retention.
• Contract rate cards, where every customer has their own prices, slabs and discounts.
• Consolidated monthly bills built from many deliveries, trips or orders.
• Multi-entity and franchise billing, where several companies, branches or partner firms bill from one platform.

What the platform includes

• Invoice generation with draft, review and approval steps before anything goes to the customer.
• Tax handling: GST with e-invoice IRN and e-way bills for Indian entities, and VAT or sales tax fields with multi-currency invoices for other countries.
• Payments through Razorpay, Stripe or bank transfer, with payment links and automatic matching of receipts to invoices.
• Reminders by email and WhatsApp before and after due dates.
• A customer portal for invoices, statements and downloads.
• Accounting exports to Tally, Zoho Books, QuickBooks or Xero, by file or API.
• Roles, approvals, a full audit trail, and Excel and Word exports for finance teams.

Where this comes from

We have built a multi-tenant billing platform for partner firms: each firm works in its own space, access is controlled by role, alerts fire automatically, and reports export to Excel and Word. That project shapes how we approach billing: separate data cleanly, make every number traceable to its source, and give finance teams the exports they already use. See our portfolio.

Working with us from anywhere

Discovery runs over video calls and screen shares. After a short call you receive a fixed quote. During the build you see a working demo every week on a live preview link, and we reply to messages within 24 hours. You own the code, and launch includes a 30-day warranty. Clients in Gujarat can also meet the team in person in Surat. Engagements can be a fixed-scope project, a dedicated team, or a monthly retainer for ongoing changes.

Cost

Our listed plans start at ₹1.5 lakh for custom builds; you get a fixed quote for your scope. Payment gateways, tax integrations and accounting connectors are priced separately in the quote so you can see what each adds. More on our pricing page.

Related

Billing often sits inside a larger product: see SaaS and dashboard development and API development. If sales and operations need software too, read custom CRM development and custom ERP development. Firms in Surat can see billing software development in Surat.

Next step

Send us two or three sample invoices and a description of how they are calculated today through the contact page, at info@mindomatter.in or on WhatsApp at +91 98984 88122. We reply within 24 hours.