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Industry Standard 3 - 5 Weeks Delivery

Custom Invoicing & ERP Systems

Tailor-Made Billing, Inventory & Tax Compliance Software for High-Volume MSMEs

Ditch generic, inflexible accounting software. We architect tailored invoicing engines with automatic CGST/SGST/IGST splits, inventory sync, PDF generators, thermal receipt layouts, and supplier reconciliation.

< 500ms
PDF Generation Speed
100%
Indian GST Compliance
Unlimited
Invoice Volume
Thermal + A4
Print Formats
What You Receive

Production-Ready Deliverables

Every element is engineered for high throughput, clean code standards, and seamless maintainability.

Automated Tax & HSN Engine

Auto-detection of intra-state vs inter-state supply, HSN/SAC rate lookups, reverse charge mechanism, and round-off precision.

Lightning-Fast PDF Engine

Export pixel-perfect A4, Letter, and 80mm/58mm thermal POS receipts with QR code payment integration.

Inventory & Stock Synchronization

Real-time stock alerts, batch/lot tracking, purchase register, and automated profit margin calculations per line item.

Ledger & Customer Statement Hub

Outstanding balances, payment reminders via WhatsApp/Email, debit/credit notes, and GSTR-1 exportable sheets.

Multi-Branch & Staff Roles

Restrict bill creation permissions, track operator sales logs, cashier shifts, and warehouse dispatch receipts.

WhatsApp & Email Dispatch

Automate sending invoice PDFs and payment links directly to clients upon bill finalization.

Battle-Tested Stack

Engineered with modern, high-speed tools

Python / FastAPI

Computation Engine

ReportLab / WeasyPrint

High-Res Vector PDFs

PostgreSQL

Ledger & Double-Entry DB

Redis

Invoice Sequence Locking

Tailwind + Alpine

Keyboard-Friendly UI

Step-by-Step Delivery

How We Build & Ship

01

Tax & Workflow Audit

We analyze your invoice layout, state compliance, discount structures, and product catalog hierarchy.

02

Ledger & Calculation Engine

Double-entry accounting, serial number concurrency locks, and GST computation core built.

03

POS & Thermal Output Polish

Keyboard shortcuts for quick item addition, barcode scanner inputs, and PDF layouts styled.

04

On-Premise / Cloud Deployment

Installed on your private cloud (AWS, DigitalOcean, Hetzner) or local server with automated daily backups.

Frequently Asked Questions

Common Questions & Clarity

Yes! Our POS screens support standard USB/Bluetooth barcode scanners and print to any 80mm or 58mm ESC/POS thermal printer natively.
Yes, we build one-click exports for GSTR-1, GSTR-3B summaries, Sales Registers, and Purchase reconciliation spreadsheets in Excel/CSV format.
We can build it as a local Docker/desktop server for offline billing, with automatic background sync whenever an internet connection is detected.
Fast Turnaround

Request Scope & Blueprint

Get an exact architectural plan, time estimate, and fixed-price quotation for Custom Invoicing & ERP Systems.

NDA & strict confidentiality guaranteed.