Vbnet+billing+software+source+code May 2026

Building Complete Billing Software in VB.NET: A Step-by-Step Guide with Source Code

Introduction

In the world of small to medium-sized retail businesses, supermarkets, and restaurants, billing software is the backbone of daily operations. While cloud-based solutions are popular, desktop applications built with VB.NET and SQL Server (or MS Access) remain highly relevant due to their speed, offline accessibility, and low cost of ownership.

UI Components:

  • TextBox for Product Code (scan barcode)
  • DataGridView to display cart items (Product, Qty, Price, GST, Total)
  • TextBox for Customer Mobile (auto-fetch customer)
  • Label for Subtotal, GST, Grand Total
  • Button – Add to Cart, Remove, Print Invoice
' Insert into tbl_Invoices Dim insertInvoice As String = $"INSERT INTO tbl_Invoices (InvoiceNo, CustomerID, SubTotal, GST_Amount, GrandTotal, UserID) VALUES ('invoiceNo', customerID, lblSubTotal.Text, lblGST.Text, lblGrandTotal.Text, userId)" ExecuteNonQuery(insertInvoice) Public Function ExecuteQuery(ByVal query As String) As DataTable dt = New DataTable() Try OpenConnection() da = New SqlDataAdapter(query, conn) da.Fill(dt) Catch ex As Exception MessageBox.Show("Error: " & ex.Message) Finally CloseConnection() End Try Return dt End Function

This article provides a complete, production-ready billing software architecture. You’ll learn how to manage customers, create invoices, calculate taxes, and print bills using VB.NET and SQL Server (or MS Access). By the end, you’ll understand the logic behind every form and module. vbnet+billing+software+source+code

Enhancements You Can Add

| Feature | Benefit | |---------|---------| | Barcode scanner integration | Faster billing | | Return/Refund module | Customer satisfaction | | Daily sales chart (WinForms Chart) | Visual insights | | User activity log | Security audit | | Cloud sync (REST API) | Multi-store reporting | Building Complete Billing Software in VB

6. Reporting

Reports are generated using parameters passed to a Crystal Report or Microsoft Report Viewer. The system generates: TextBox for Product Code (scan barcode) DataGridView to

VB.NET is still widely used in desktop billing applications, especially for retail, pharmacy, and grocery shops. The code above gives you a working start — extend it with barcode scanning, multiple tax rates, or a dashboard.

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Streamster is a free live streaming software that supports cloud-based multistreaming and multi-device usage.
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Youtube_logo (2)
© 2026 Streamster OÜ. All rights reserved.