GST Tax Invoicing & Offline Inventory Management Software for Indian Retail & Wholesale

GST billing software is a specialized commercial program engineered to automate the preparation of tax-compliant sales invoices, cash memos, bills of supply, and credit/debit notes in compliance with India's Goods and Services Tax law. It eliminates manual arithmetic mistakes by automatically calculating CGST, SGST, IGST, and Cess according to designated product tax rates and buyer states. In addition to printing professional customer invoices with mandatory HSN/SAC codes, it maintains customer accounting ledgers, deducts inventory stock in real time, and compiles ready-to-file GSTR-1, GSTR-2, and GSTR-3B tax returns for the government GST portal.

Configuring GST in InventoryPlus is fast and user-friendly. Go to Settings ➔ Company Details ➔ General Settings and click on the Taxation button. Here, set up your primary tax scheme (such as CGST at 2.5%, 6%, 9%, or 14%) and secondary tax scheme (SGST at 2.5%, 6%, 9%, or 14%), then map each to its designated accounting tax ledger. Next, enable the Interstate Tax Scheme (IGST at 5%, 12%, 18%, or 28%). When issuing an invoice, simply selecting an out-of-state customer automatically engages the IGST calculation, while local buyers automatically receive itemized CGST + SGST tax lines.

InventoryPlus features a dedicated tax compilation module located under Reports ➔ Other ➔ GST Extract (formerly under Home menu). This utility reviews all transaction registers across your chosen monthly or quarterly date range and organizes them into government-recommended CSV tables. It categorizes data into B2B Invoices (4A, 4B, 4C, 6B, 6C), B2C Large Invoices (5A, 5B), B2C Small Consolidated Sales (7), Credit/Debit Notes (9B), and HSN-wise item summaries (12). You can import these CSV files directly into the official GST Offline Tool or export them to Excel to hand over to your Chartered Accountant, completely eliminating manual tax reconciliation headaches.

Yes. For commercial consignments with an invoice value exceeding ₹50,000, Indian GST rules mandate an E-Way Bill for road transit. In InventoryPlus, the invoice screen allows you to record required transportation parameters including Transporter ID, Transporter Name, Vehicle Number, Transport Doc Number, and approximate distance in kilometers. This structured data makes filing on the national E-Way Bill and E-Invoicing (IRN) portals fast and error-free, preventing consignment seizures and transport delays.

InventoryPlus stands apart by delivering the ideal balance of high speed, modern interface design, complete offline autonomy, and budget-friendly pricing. Unlike Tally Prime (which costs ₹22,500+ and requires complex accounting training) or Marg ERP (which uses a dated 1990s DOS-style interface), InventoryPlus offers an intuitive modern Windows UI that any retail staff member can master in under 10 minutes. Unlike Zoho Books (which depends entirely on continuous internet and charges high annual SaaS renewals) or Vyapar (which was designed primarily for mobile phones and struggles with heavy 10,000+ SKU desktop scanning), InventoryPlus delivers instant sub-second desktop billing speed, a built-in barcode label designer, weighing scale decoding, and full double-entry accounting at a fraction of the cost.

Yes, 100%! InventoryPlus is an offline-first Windows desktop software. All sales invoices, customer ledgers, vendor transactions, and inventory records are stored locally on your PC in high-performance encrypted .ims database files. You can generate hundreds of bills during power interruptions or broadband outages with zero counter latency. For backup and mobile viewing, InventoryPlus offers optional automated sync with Google Drive, Dropbox, or Microsoft OneDrive, and you can access high-level store KPI reports from your smartphone via my.inventoryplus.in whenever an internet connection is available.

Under Settings ➔ Company Details, enter your UPI Virtual Payment Address (VPA) ID (such as yourstore@upi, GPay, PhonePe, or Paytm merchant ID). When printing bills using the Report Designer, enable the dynamic UPI QR code component. InventoryPlus will automatically embed a customized QR code on each sales chit encoding your UPI ID and the exact invoice bill total. Customers can scan the printed QR code with any UPI mobile application (BHIM, Google Pay, PhonePe, Paytm) to pay immediately into your bank account with zero payment gateway processing deductions or card terminal fees.

InventoryPlus provides integrated real-time stock accounting. Every bill generated instantly decrements stock from your inventory balance. You can record manufacturing batch numbers, production lot codes, and expiration dates during purchase receiving. The software provides automated visual warnings for items nearing expiry (e.g., 30, 60, or 90 days out) and stops expired items from being scanned at the counter. Closing inventory asset values and Cost of Goods Sold (COGS) are evaluated automatically using standard First-In First-Out (FIFO), Last-In First-Out (LIFO), or Moving Average Cost models.

InventoryPlus works seamlessly with all industry-standard POS hardware with zero proprietary driver restrictions. It supports 2-inch (58mm) and 3-inch (80mm) thermal receipt printers, ESC/POS kitchen chits, standard A4 and A5 laser or inkjet printers, electronic cash drawers, customer pole displays, handheld 1D USB barcode scanners, 2D QR Code wireless guns, Bluetooth printers, and digital electronic weighing scales (decoding 13-digit EAN scale barcodes with embedded weight).

InventoryPlus is completely free to download and use for personal, educational, and initial evaluation purposes, including a fully functional 50-sales-bill commercial trial with no feature restrictions. For regular business operations, InventoryPlus provides the most economical licensing in the Indian market, starting as low as ₹599 to ₹999 per year or one-time Lifetime licenses with no mandatory monthly SaaS subscription fees or hidden per-bill costs.

Yes! Migrating from another billing system or spreadsheets is effortless. Navigate to Stock Management ➔ Import / Export. Our intelligent column-mapping wizard reads any standard Microsoft Excel (.xlsx, .xls) or CSV file, allowing you to map spreadsheet headers to Product Name, Item Code, Barcode, HSN/SAC Code, Tax Slab, Purchase Rate, Selling Price, MRP, and Opening Stock Quantity, populating tens of thousands of items into InventoryPlus in seconds.

For growing retail chains and wholesale businesses with multiple store locations or godowns, InventoryPlus provides Smart Sync functionality. By linking your local databases through secure cloud repositories such as Google Drive or Dropbox, branch stores can synchronize stock transfers, track head-office inventory availability, and consolidate financial reports without needing expensive dedicated servers or leased VPN networks.