Inventory

Barcode

A machine-readable code printed on products for quick identification

Definition

A barcode is a visual, machine-readable representation of data, typically printed as a series of parallel lines (1D barcode) or a square pattern of dots (2D barcode or QR code) on product labels and packaging. When scanned using a barcode reader or smartphone camera, the barcode instantly retrieves product information such as name, price, HSN code, and current stock level from the inventory system. For Indian small businesses, barcodes dramatically speed up the billing process, reduce manual data entry errors, and enable accurate real-time inventory tracking. Barcodes are especially useful during stock audits and physical verification, as scanning is much faster than counting and recording manually. Common barcode formats used in India include EAN-13 for retail products and Code 128 for internal inventory management. Many Indian businesses now generate their own barcodes using inventory software, eliminating the need to rely on manufacturer-printed codes.

How It Works

  1. 1Each product is assigned a unique barcode number, which is printed as a label and stuck on the product or shelf.
  2. 2When the cashier scans the barcode using a handheld scanner or phone camera, the billing software instantly looks up the product details — name, price, HSN code, tax rate, and current stock — and adds it to the invoice.
  3. 3The stock count is automatically reduced upon billing, keeping your inventory accurate in real time.

Example

A grocery store in Ahmedabad uses barcodes for all 2,000 items in stock. During billing, the cashier scans each product's barcode, and the system automatically adds the item name and price to the bill. A pack of Toor Dal with barcode 8901234567890 is scanned and shows Rs. 180 on the bill. The system simultaneously reduces the stock count from 45 to 44 packs. At month-end, the owner generates a stock report by scanning all shelf items, completing a physical count of 2,000 products in just 3 hours instead of a full day.

How Stock Register Handles This

  • Generate unique barcodes for products without manufacturer codes — print labels directly from the app
  • Scan to bill in under 2 seconds — price, HSN code, tax rate, and stock deduction happen automatically
  • Barcode-based stock audit: scan shelf items with your phone camera and compare against system count instantly
Learn more about Barcode Billing →

Related Terms

Related Guides

Frequently Asked Questions

Do I need a barcode scanner or can I use my phone?

You can use either. A dedicated barcode scanner (Rs. 1,000-3,000) is faster for high-volume billing. However, most modern inventory apps including Stock Register support phone camera scanning, which works well for small shops with moderate billing volume. Bluetooth scanners that connect to your phone are a good middle-ground option.

Can I create my own barcodes for products that do not have one?

Yes, you can generate your own barcodes for loose items, locally sourced products, or any item without a manufacturer barcode. Stock Register lets you create and print barcode labels in standard formats like Code 128 or EAN-13. You can print them on regular A4 sheets or use a thermal label printer for professional-looking stickers.

What is the difference between a barcode and a QR code?

A barcode (1D) stores data in horizontal lines and typically holds 8-15 digits — enough for a product ID. A QR code (2D) stores data in a square grid pattern and can hold much more information like URLs, invoice details, or complete product descriptions. For retail billing, 1D barcodes are sufficient and scan faster. QR codes are used on e-invoices and payment UPI screens.

Ready to Get Started?

Manage inventory, billing, and accounting effortlessly.