VB.NET, paired with the .NET framework, allows you to build robust Windows Forms or WPF applications faster than almost any other language. It handles math, database transactions, and reporting (Crystal Reports or RDLC) with ease.
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CREATE DATABASE BillingDB; GO USE BillingDB; GO -- 1. Inventory/Products Table CREATE TABLE Products ( ProductID INT IDENTITY(1,1) PRIMARY KEY, ProductCode VARCHAR(50) UNIQUE NOT NULL, ProductName NVARCHAR(150) NOT NULL, UnitPrice DECIMAL(18, 2) NOT NULL DEFAULT 0.00, StockQuantity INT NOT NULL DEFAULT 0 ); -- 2. Customers Table CREATE TABLE Customers ( CustomerID INT IDENTITY(1,1) PRIMARY KEY, CustomerName NVARCHAR(100) NOT NULL, ContactNumber VARCHAR(20) NULL, Email VARCHAR(100) NULL ); -- 3. Invoice Master Table CREATE TABLE Invoices ( InvoiceID INT IDENTITY(1,1) PRIMARY KEY, InvoiceNumber VARCHAR(50) UNIQUE NOT NULL, InvoiceDate DATETIME NOT NULL DEFAULT GETDATE(), CustomerID INT FOREIGN KEY REFERENCES Customers(CustomerID), SubTotal DECIMAL(18, 2) NOT NULL, TaxRate DECIMAL(5, 2) NOT NULL DEFAULT 0.00, -- Percentage (e.g., 15.00) TaxAmount DECIMAL(18, 2) NOT NULL, GrandTotal DECIMAL(18, 2) NOT NULL ); -- 4. Invoice Line Items Table (Many-to-Many Breakdown) CREATE TABLE InvoiceDetails ( DetailID INT IDENTITY(1,1) PRIMARY KEY, InvoiceID INT FOREIGN KEY REFERENCES Invoices(InvoiceID) ON DELETE CASCADE, ProductID INT FOREIGN KEY REFERENCES Products(ProductID), Quantity INT NOT NULL, UnitPrice DECIMAL(18, 2) NOT NULL, LineTotal AS (Quantity * UnitPrice) PERSISTED ); GO -- Seed Mock Data for Verification INSERT INTO Products (ProductCode, ProductName, UnitPrice, StockQuantity) VALUES ('P1001', 'Wireless Mouse', 25.00, 150), ('P1002', 'Mechanical Keyboard', 85.50, 75), ('P1003', '27-inch 4K Monitor', 349.99, 30); INSERT INTO Customers (CustomerName, ContactNumber, Email) VALUES ('General Cash Customer', '0000000000', 'cash@local.com'), ('Jane Doe', '5551234567', 'jane.doe@example.com'); GO Use code with caution. The Presentation Layer (UI Design)
Creating a clean, printable layout (often using Crystal Reports or RDLC).
What do you plan to use for your application? vb.net billing software source code
The real power of having the source code is the ability to tweak it. No off-the-shelf software understands your business like you do.
Building a Complete VB.NET Billing Software: Architecture, Source Code, and Implementation Guide
to handle calculations separately from the UI. This allowed the system to scale as the business grew from selling simple items to complex services with taxes and discounts. The Breakthrough: The Print Command
Use code with caution.
| Project Name | Description | Technology Stack | Source | | :--- | :--- | :--- | :--- | | | A desktop software for billing purposes with a key focus on stock management. It offers features to create new bills, view old bills, and manage stock levels. | VB.NET, MS Access, OLEDB Connection | GitHub | | Complete Inventory Management Software | A comprehensive project with barcode support, SMS integration, and a wide range of reports (Sales, Profit & Loss, Trial Balance). | VB.NET, MS SQL Server 2008 R2 | SourceCodester | | Point of Sale and Inventory System V.2 | A complete POS system with automatic receipt printing, stock monitoring, and reorder level alerts. Comes with Daily, Weekly, and Monthly Reports. | VB.NET, MySQL 5.0 | SourceCodester | | EasyBill | A premium billing software with advanced accounting and inventory features, including multiple company creation and GST support. | VB.NET, MySQL, Crystal Reports | CodeCanyon | | Pub Billing System | A simple, educational system designed for pub owners to calculate bills, manage inventory, and generate sales receipts. | VB.NET, MS Access | TechRooms.eu | | Enrollment and Billing System | A unique take on billing, designed for educational institutions to handle student enrollment, subject management, and tuition payments. | VB.NET, MySQL | SourceCodester | | HWL (Free Invoicing Software) | A free invoicing program for Windows, supporting offers, delivery notes, cash books, and collective invoices. | VB.NET | Codeberg |
This comprehensive guide demonstrates how to build a desktop-based billing application using and Windows Forms , backed by an MS Access database ( .accdb ). This architecture is perfect for small-to-medium enterprises (SMEs) due to its minimal footprint and easy deployment. Architecture and Database Schema
Private Sub btnAdd_Click(sender As Object, e As EventArgs) Handles btnAdd.Click Dim total As Double = txtPrice.Text * txtQty.Text dgvBill.Rows.Add(txtID.Text, txtName.Text, txtPrice.Text, txtQty.Text, total) CalculateGrandTotal() End Sub Private Sub CalculateGrandTotal() Dim sum As Double = 0 For Each row As DataGridViewRow In dgvBill.Rows sum += Convert.ToDouble(row.Cells(4).Value) Next lblGrandTotal.Text = sum.ToString("N2") End Sub Use code with caution. Saving the Transaction
Creating a robust billing system in VB.NET is a classic project for developers looking to master database management and CRUD (Create, Read, Update, Delete) operations. This guide breaks down the architecture and core logic needed to build a professional-grade billing application. This link or copies made by others cannot be deleted
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After saving the invoice to the database, the final step is to generate a professional PDF document to share with the customer. Several powerful libraries can handle this for you.
Create a new project and select or Windows Forms App using Visual Basic . Name your project BillingSoftware .