GST Billing POS Inventory Accounting Software
ASP.NET Applications
NexBill is a GST-compliant billing, POS, inventory and accounting platform built on ASP.NET Core 10 MVC and SQL Server for Indian small and medium businesses. It covers day-start/day-end dashboards, GST tax invoicing with automatic CGST/SGST/IGST split, POS billing, quotations, delivery challans, inventory with HSN-driven tax rates, party ledgers, purchases, payments, expenses, and GSTR-ready reports — all in one app. A configurable GST engine handles tax rules as data rather than hard-coded logic, so rate changes never need a code release. A six-role permission system (Owner, Manager, Cashier, Accountant, Salesman, Viewer) covers ownership, floor staff, and back-office roles. It ships as complete, unencrypted single-tenant source code with white-label rights, no domain restrictions, and a one-time price.
GST Billing POS Inventory Accounting Software
NexBill is a GST-compliant billing, POS, inventory and accounting platform built for Indian small and medium businesses — shops, distributors, and service providers who need day-to-day billing and stock control without the overhead of a full ERP. It's built on ASP.NET Core 10 MVC and SQL Server, modeled on the workflow familiar to Vyapar users, and covers dashboard reporting, GST tax invoicing, quotations, delivery challans, POS billing, party ledgers, purchases, payments, expenses, and GSTR-ready reports in a single application. NexBill is a Vyapar alternative you own outright — full source code, no subscription.
The platform is single-tenant by design — one install per business — which keeps setup and support simple for resellers and installers. It ships as complete, unencrypted source code with white-label rights, no domain restrictions, and a one-time payment.
Features
- Day Start / Day End Dashboard
Cash-in-hand, sales trend, low-stock alerts and quick actions the moment you log in. - GST Tax Invoicing
Automatic CGST/SGST/IGST split by place of supply, discounts, round-off and multi-mode payments. A4 print and thermal (2"/3") receipt print supported. - POS / Counter Billing
Touch-friendly quick billing, barcode scan-to-add and fast checkout for busy counters — creates a real sale invoice behind the scenes. - Quotations & Delivery Challans
Estimates with GST preview and one-click conversion to a sale invoice at the quoted price. Delivery challans move stock at creation and convert to invoices later. - Inventory Management
HSN/SAC-driven tax rates, stock levels, item photos, quick stock adjustment, and low-stock/reorder alerts. - Party Ledger
Unified customer/supplier master with opening balances, credit terms, running balances and statements. - Purchases, Payments & Expenses
Purchase bills with GST input tax capture, payment-in/payment-out across invoices, bills or on-account, and expense tracking with optional GST input credit. - Reports & Analytics
Sale/Purchase Register, Day Book, Party Statement, Stock Summary, and Outstanding Receivables & Payables — each exportable to CSV and PDF.
The Core Differentiator: A Real GST Compliance Engine, Not Just an Invoice Template
Tax rules live in configurable data, not hard-coded logic — so rate changes never need a code release.
- HSN/SAC-driven tax lookup with manual override
- Automatic CGST/SGST vs. IGST determination from place of supply
- Composition scheme billing mode for small taxpayers
- GSTR-1, GSTR-2A/2B reconciliation and GSTR-3B summary exports
- HSN-wise and tax-rate-wise summary reports
Tech Stack
| Layer | Technology |
|---|---|
| Framework | ASP.NET Core 10 MVC (Areas per module) |
| Database | SQL Server (Express/LocalDB for single-shop installs) |
| ORM | Entity Framework Core, Code-First migrations |
| Auth | ASP.NET Core Identity — role-based (Owner, Manager, Cashier, Accountant, Salesman, Viewer) |
| PDF Generation | QuestPDF (Community license) |
| Excel/CSV Export | Custom lightweight CSV writer |
| UI | Bootstrap 5, Bootstrap Icons, self-hosted Inter font — no CDN dependencies, works on shops with unreliable internet |
Modules
Dashboard · POS · Sales · Quotations · Delivery Challans · Parties · Items · Purchase · Payments · Expenses · Reports · Admin (Business & Company setup, User & Role management)
Roles & Permissions
Owner · Manager · Cashier · Accountant · Salesman · Viewer
Licensing: Own It Outright — No Subscriptions, No Lock-In
- Unencrypted ASP.NET Core MVC source, white-label rights
- One-time price — no recurring subscription
- No domain or installation restriction
- Single-tenant design keeps setup and support simple
Don’t Keep This to Yourself — Share It!
License
A regular license permits the use of an item in a single project, whether for personal or commercial purposes, by you or on behalf of a client. Resale of the item, either individually or as part of a project, is prohibited, and the distribution of source files is not allowed.
Machine
x86-64 (64-bit).
CPU
Operating system dependent.
Memory
2 GB.
Screen Resolution
1280 x 800, 16-bit color.
Hard Disk
200 MB.
Operating System
Windows 7 (32-bit or 64-bit) or later.
System Requirements
- .NET 10 SDK
- SQL Server (LocalDB supported for local development)
- Any Windows or Linux server with .NET 10 runtime
Languages Used
- Framework: ASP.NET Core 10 MVC (Areas per module)
- Database: SQL Server (Express/LocalDB for single-shop installs)
- ORM: Entity Framework Core, Code-First migrations
- Auth: ASP.NET Core Identity — role-based (Owner, Manager, Cashier, Accountant, Salesman, Viewer)
- PDF Generation: QuestPDF (Community license)
- Excel/CSV Export: Custom lightweight CSV writer
- UI: Bootstrap 5, Bootstrap Icons, self-hosted Inter font — no CDN dependencies, works on shops with unreliable internet
Payment Type
One time Payment: Upon receiving your full payment, we will provide you with the complete source code. After that, no additional payments will be required.
Delivery Time
We will send the Download Link to you Within 2-4 hrs. On Working Days(Monday- Friday) And the source code will deliver within 4-8 hours On Weekends (Saturday -Sunday).
Technical Support
Unlimited Email Support for One Year.
Software Update
Free Updates for One Year.
Customization Scope
Includes Complete Source Code.
Encryption
No Encryption and No Domain Limitations.
Installation
No Free Installation Services. Our charges range from $20 to $30, depending on the software's complexity and criticality.
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