Vbnet+billing+software+source+code

It sounds like you're looking for a useful piece of VB.NET source code related to billing software — possibly a complete project or a key module (e.g., invoice generation, product billing, GST/tax calculation, receipt printing).

Since I can’t directly send files, here’s a practical VB.NET billing software snippet you can use or expand.
This example covers:

Adding items to a bill
Calculating subtotal, tax, and total
Displaying bill in a DataGridView and ListView

6. Reporting

Reports are generated using parameters passed to a Crystal Report or Microsoft Report Viewer. The system generates:

Daily Sales Report: Summary of all transactions for a specific date.
Inventory Report: Lists low-stock items to trigger re-ordering.

Building a Complete Billing Software in VB.NET: Full Source Code & Architecture Guide

Review: "vbnet billing software source code"

Summary

A practical starter project for VB.NET developers building small business billing/invoicing applications.
Strengths: clear structure, readable VB.NET code, basic invoicing workflow implemented, and useful UI examples.
Weaknesses: limited error handling, minimal security practices, sparse documentation, and not production-ready without refactoring.

What I evaluated

Code organization and readability
Core features implemented (invoicing, customers, products, billing calculations)
UI/UX and sample forms
Data storage approach (file vs. database)
Error handling, validation, and security considerations
Documentation and extensibility

Key strengths

Accessible VB.NET style: Uses idiomatic VB.NET syntax and WinForms patterns that are easy to follow for beginners.
End-to-end workflow: Covers creating customers, adding products/services, assembling invoice line items, computing totals/tax, and printing or exporting invoices.
Helpful UI examples: Sample forms show common layouts (customer list, product catalog, invoice editor) that can be reused.
Modular enough for learning: Business logic is separated from form code in several places, making it easier to adapt or extend.

Major issues to address

Data persistence: Uses local files or a lightweight embedded database in many implementations — no robust database abstraction or migration support; this limits scalability and multi-user use.
Security shortcomings: Plaintext storage of sensitive data, lack of authentication/authorization, and no input sanitization in places (risk of SQL injection if upgraded to SQL) — not safe for production without hardening.
Error handling and validation: Missing centralized exception handling and inconsistent form validation (e.g., negative quantities, missing tax settings).
Testing and maintainability: Little to no unit tests, and some business logic is still inside form event handlers, making automated testing harder.
Documentation: Readme and inline comments are minimal; setup steps, dependencies, and upgrade notes are often absent.

Suggestions for improvement

Replace local file storage with a proper database (SQLite/MySQL/SQL Server) and add a data access layer with parameterized queries or an ORM.
Add authentication, role-based access, and encrypt any stored credentials or secrets.
Centralize validation and exception handling; add defensive checks for numeric inputs, currency rounding, and tax rules.
Refactor business logic out of forms into services/classes to allow unit testing; add a test suite covering invoice calculations and data operations.
Improve documentation: setup/run instructions, dependency list, schema migration steps, and code comments for core modules.
Implement audits/logging for invoice changes and export a sample dataset for testing.

Who this is for

Beginner-to-intermediate VB.NET developers who want a working example of a billing app to learn from or extend.
Small teams wanting a rapid prototype, provided they invest in security and data upgrades before production use.

Who should avoid using it as-is

Businesses needing multi-user, secure, compliant billing systems (PCI/GDPR) — the code requires significant hardening and QA.
Developers expecting production-grade scalability, distributed access, or extensive automation.

Overall rating (out of 5)

3.0 — Solid learning resource and quick prototype; requires refactoring, security, and persistence improvements to be production-ready.

If you want, I can:

Produce a concise checklist to harden and prepare this codebase for production.
Suggest a concrete refactor plan (modules, DB schema, authentication).
Generate sample unit tests for invoice calculation functions.

Creating a billing software in typically involves setting up a database (like SQL Server), designing a Windows Form interface, and writing logic for calculations and invoice generation.

Below is a simplified structural breakdown and a core code example to help you get started. 1. Key Components of the System Database Management

: Use SQL Server or MS Access to store product lists, customer details, and transaction history. User Interface DataGridView to display items in the current bill, inputs for quantities/prices, and a to process the sale. Calculation Logic

: Methods to sum up item prices, apply taxes/discounts, and calculate the final balance. Invoice Printing PrintDocument

or external libraries to generate a physical or PDF receipt. 2. Core Source Code Snippet

This logic demonstrates a basic "Add to Bill" function where item totals are calculated and updated in a list.

Public Class BillingForm Dim totalBill As Double = 0

Private Sub btnAddItem_Click(sender As Object, e As EventArgs) Handles btnAddItem.Click
    ' Basic validation and calculation
    If txtPrice.Text <> "" And txtQuantity.Text <> "" Then
        Dim itemTotal As Double = CDbl(txtPrice.Text) * CInt(txtQuantity.Text)
' Add item to the DataGridView
        dgvBillItems.Rows.Add(txtItemName.Text, txtPrice.Text, txtQuantity.Text, itemTotal)
' Update the grand total
        UpdateTotal(itemTotal)
    End If
End Sub
Private Sub UpdateTotal(amount As Double)
    totalBill += amount
    lblGrandTotal.Text = "Total: $" & totalBill.ToString("N2")
End Sub
Private Sub btnPrint_Click(sender As Object, e As EventArgs) Handles btnPrint.Click
    ' Code to trigger the PrintDialog or PrintPreview
    PrintDocument1.Print()
End Sub

End Class Use code with caution. Copied to clipboard 3. Learning Resources & Templates

For more advanced, object-oriented implementations, you can explore these specialized tutorials and repositories:

VB.NET Billing Software Source Code: A Comprehensive Overview

Are you looking for a reliable and efficient billing software solution for your business? Look no further! VB.NET billing software source code can provide a robust and customizable platform for managing your billing operations. In this write-up, we'll explore the benefits, features, and key components of a VB.NET billing software source code.

What is VB.NET Billing Software?

VB.NET (Visual Basic .NET) is a popular programming language used for developing Windows-based applications. A billing software developed using VB.NET is a comprehensive solution for managing billing operations, including invoicing, payment tracking, and customer management. The source code is the foundation of the software, providing a customizable framework for businesses to tailor the solution to their specific needs.

Benefits of VB.NET Billing Software Source Code

Customizability: With access to the source code, businesses can modify and tailor the software to their specific requirements, ensuring a perfect fit for their operations.
Cost-effective: Developing a billing software from scratch can be expensive. Using a VB.NET billing software source code can save businesses a significant amount of money.
Reliability: VB.NET is a stable and reliable programming language, ensuring that the billing software is secure and efficient.
Ease of integration: VB.NET billing software can be easily integrated with other business applications, such as accounting software, CRM systems, and more.

Key Features of VB.NET Billing Software Source Code

Invoicing: Generate professional invoices with ease, including customizable templates and automated calculations.
Payment tracking: Monitor and manage payments, including partial payments, discounts, and late fees.
Customer management: Store customer information, including contact details, payment history, and outstanding balances.
Reporting: Generate detailed reports on billing activities, including revenue, expenses, and customer behavior.
Security: Implement robust security measures, including data encryption, user authentication, and access controls.

Components of VB.NET Billing Software Source Code

User interface: A user-friendly interface for easy navigation and data entry.
Database integration: Integration with a database management system, such as Microsoft SQL Server or MySQL.
Business logic: The core logic of the software, including calculations, validations, and workflows.
Reporting and analytics: A reporting engine for generating detailed reports and analytics.

How to Find VB.NET Billing Software Source Code

Online marketplaces: Search online marketplaces, such as CodeCanyon, GitHub, or SourceForge, for VB.NET billing software source code.
Software development companies: Contact software development companies that specialize in VB.NET development for custom solutions.
Open-source projects: Explore open-source projects, such as NPO (Non-Profit Organization) billing software, for inspiration and code reuse.

Conclusion

VB.NET billing software source code provides a robust and customizable platform for managing billing operations. With its benefits, features, and key components, businesses can develop a reliable and efficient billing software solution. Whether you're looking for a pre-built solution or a custom development project, understanding the ins and outs of VB.NET billing software source code is essential for making an informed decision.

Title: Build a Powerful Billing Software in VB.NET – Full Source Code Insights

Topic: VB.NET Billing Software Source Code

If you're looking to create a billing or invoicing system for a small business, VB.NET is a solid choice. It’s easy to learn, fast to develop with, and tightly integrated with databases like MS Access, SQL Server, or MySQL.

In this post, I’ll walk you through the key components of a typical billing software project in VB.NET and share source code snippets you can build upon. vbnet+billing+software+source+code

1. Core Features of a Billing System

A standard billing application should include:

Product / Item Management
Customer / Party Management
Invoice Generation with auto-incrementing bill numbers
GST / Tax calculation
Bill printing and PDF export
Search bills by date or customer

2. Technology Stack

Frontend: VB.NET (Windows Forms or WPF)
Backend: SQL Server (or MS Access for small scale)
Reporting: Crystal Reports or RDLC

3. Sample Source Code: Add Items to DataGridView

Here’s a simple snippet that adds a selected product to the bill grid:

Private Sub btnAddItem_Click(sender As Object, e As EventArgs) Handles btnAddItem.Click
    Dim rowIndex As Integer = dgvBill.Rows.Add()
dgvBill.Rows(rowIndex).Cells("colProductName").Value = txtProduct.Text
dgvBill.Rows(rowIndex).Cells("colQuantity").Value = nudQty.Value
dgvBill.Rows(rowIndex).Cells("colPrice").Value = txtPrice.Text
Dim qty As Decimal = Convert.ToDecimal(nudQty.Value)
Dim price As Decimal = Convert.ToDecimal(txtPrice.Text)
Dim amount As Decimal = qty * price
dgvBill.Rows(rowIndex).Cells("colAmount").Value = amount
CalculateTotal()

End Sub
Private Sub CalculateTotal()
Dim total As Decimal = 0
For Each row As DataGridViewRow In dgvBill.Rows
If row.Cells("colAmount").Value IsNot Nothing Then
total += Convert.ToDecimal(row.Cells("colAmount").Value)
End If
Next
lblTotal.Text = total.ToString("N2")
End Sub

4. Generate Bill Number Automatically

Private Function GetNewBillNo() As String
    Dim lastBill As String = ""
    Dim cmd As New SqlCommand("SELECT TOP 1 BillNo FROM Bills ORDER BY BillNo DESC", con)
    Dim reader = cmd.ExecuteReader()
    If reader.Read() Then
        lastBill = reader("BillNo").ToString()
        Dim numericPart As Integer = Integer.Parse(lastBill.Substring(3)) + 1
        Return "INV-" & numericPart.ToString("D6")
    Else
        Return "INV-000001"
    End If
End Function

5. Save Invoice to Database

Private Sub SaveBill()
    Using con As New SqlConnection(connectionString)
        con.Open()
        Dim cmd As New SqlCommand("INSERT INTO Bills (BillNo, CustomerName, BillDate, TotalAmount) VALUES (@bno, @cname, @bdate, @total)", con)
        cmd.Parameters.AddWithValue("@bno", txtBillNo.Text)
        cmd.Parameters.AddWithValue("@cname", txtCustomer.Text)
        cmd.Parameters.AddWithValue("@bdate", DateTimePicker1.Value)
        cmd.Parameters.AddWithValue("@total", lblTotal.Text)
        cmd.ExecuteNonQuery()
        MessageBox.Show("Bill saved successfully!")
    End Using
End Sub

6. Complete Source Code Availability

I’ve created a ready-to-run VB.NET Billing Software Project with:

Full source code (VB.NET + SQL Server)
Print & PDF invoice export
Product & customer masters
Sales report with date filter

📌 Download the complete project: [Insert your download link]

Final Thoughts

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.

Have questions? Drop them below!

A VB.NET billing software project is a desktop application designed to automate the process of managing sales, monitoring daily transactions, and generating invoices for businesses Core Software Architecture : Developed using Visual Basic .NET (Windows Forms Application) within IDEs like Microsoft Visual Studio 2019/2022 : Commonly utilizes for simple projects or SQL Server/MySQL for larger, multi-user systems. Reporting Engine : Often relies on Crystal Reports

to design and print invoices, receipts, and daily sales summaries. Key Modules and Features

VB.NET remains a popular choice for developing desktop-based billing and inventory systems due to its rapid application development (RAD) capabilities and deep integration with the Windows ecosystem. By leveraging Visual Basic .NET with a robust database like SQL Server or MS Access, developers can build high-performance tools that automate manual invoicing, track sales, and manage customer records. Key Features of VB.NET Billing Software

A comprehensive billing project typically includes several core modules designed to streamline retail and service-based operations:

Inventory & Product Management: Track stock levels, add new products with unique IDs, and categorize items like groceries, electronics, or medical supplies.

Customer & Client Master: Maintain a database of subscriber details, including names, contact info, and payment history to simplify recurring billing.

Real-time Billing Interface: A dynamic POS (Point of Sale) form where users can select items, adjust quantities, and instantly calculate subtotals, taxes, and grand totals.

Automated Invoicing: Generate professional receipts and invoices that can be printed or exported to formats like Excel, Word, or PDF using tools like Crystal Reports.

Comprehensive Reporting: View daily sales summaries, profit and loss statements, and outstanding bill reports to monitor business health. Technical Architecture

Building a Billing Software System in VB.NET A VB.NET billing software system is a desktop-based application designed to manage and automate the process of generating invoices, tracking payments, and maintaining records of sales transactions. These systems are widely used in retail environments, such as supermarkets and computer shops, to replace manual billing processes. Core Modules and Functionality

Effective billing software typically includes several integrated modules to handle various business aspects:

Product/Inventory Management: Allows for the addition, modification, and tracking of items including names, descriptions, and unit prices.

Customer/Subscriber Details: Stores essential information such as name, address, ID, and contact details.

Billing/Invoice Generation: The central component where users select items, input quantities, and calculate subtotals, taxes, and final totals.

Payment Module: Handles different payment modes like cash or card and records transactions against specific customer IDs.

Report Generation: Produces detailed summaries of sales and payments over specific periods. Technical Architecture

Developing a billing system in VB.NET generally requires the following tech stack:

Development Environment: Visual Studio (versions like 2019 or 2022 are common).

Database Management: SQL Server is frequently used for enterprise-level data, while MS Access or SQLite may be used for simpler, lightweight applications. It sounds like you're looking for a useful piece of VB

Reporting Tools: Crystal Reports is often integrated to design and print professional invoices. Development Workflow Creating the software involves several key steps:

Requirement Analysis: Defining core features based on specific business needs (e.g., supermarket vs. telecom billing).

UI/UX Design: Designing Windows Forms with controls like text boxes, combo boxes for item selection, and data grid views for displaying records.

Database Integration: Establishing a connection (often using ADO.NET) to the backend database to store and retrieve data.

Core Logic Implementation: Writing VB.NET code to perform arithmetic calculations, handle events like button clicks, and manage data navigation. Resources for Source Code

Developers and students can find comprehensive projects and tutorials on various platforms:

Kashipara: Offers downloadable ZIP files with complete source code, documentation, and database scripts for various billing systems, including Computer Shop Billing and Water Billing Systems.

GitHub: Contains open-source repositories for Supermarket Billing Systems and other VB.NET applications using various database backends.

Video Tutorials: YouTube channels like DJ Oamen provide step-by-step visual guides on designing the interface and implementing the underlying code. How to Create Billing System Project in Visual Basic.Net

Building a Simple Billing System in VB.NET: A Step-by-Step Guide

Are you looking to streamline small business transactions or sharpen your Windows Forms development skills? A Billing System

is the perfect project to understand how software interacts with databases to manage products, customers, and invoices.

In this post, we’ll break down the core components of a VB.NET billing application and provide a clear roadmap for the source code structure. Key Features of the Billing Software

To be functional, a basic billing system needs these essential modules: Inventory Management: Add, update, and track stock levels. Customer Records: Maintain a database of client contact details. Invoice Generation: Calculate totals, taxes, and discounts in real-time. Print Functionality:

Generate physical or PDF receipts using Crystal Reports or PrintDocument. Search Filters: Quickly find previous transactions by Date or Invoice ID. The Tech Stack Visual Studio (Windows Forms)

Microsoft Access (.accdb) or SQL Server for better scalability. Core Logic: Calculating the Total

One of the most important snippets in your source code will be the logic that updates the total as items are added to the DataGridView. Here’s a simplified example:

Public Sub CalculateTotal() Dim sum As Double = 0 For i As Integer = 0 To DataGridView1.Rows.Count - 1 sum += Convert.ToDouble(DataGridView1.Rows(i).Cells("Amount").Value) Next txtGrandTotal.Text = sum.ToString("N2") End Sub Use code with caution. Copied to clipboard Database Schema Design

For your source code to work efficiently, your database should have at least three tables: Products Table: ProductName StockQuantity Sales Table: CustomerName TotalAmount SalesDetails Table: Why Use VB.NET for Billing?

While newer frameworks exist, VB.NET remains a favorite for rapid application development (RAD) in desktop environments. Its drag-and-drop interface in Visual Studio allows you to build complex forms—like a checkout counter—in a fraction of the time it takes in other languages. Conclusion

Developing a billing system is more than just coding; it’s about understanding business logic. By mastering the source code for this project, you’ll be well-equipped to build more complex ERP and POS systems in the future. example or a specific UI design layout for the main billing form?

For a VB.NET-based billing system, the core of your software will rely on a robust database connection (typically SQL Server ) and a clear user interface for processing transactions. Essential Core Features Customer & Product Management

: Create and manage detailed profiles for customers and a comprehensive list of products or services. Automated Invoice Generation

: Generate professional invoices that automatically calculate subtotals, taxes, and discounts. Real-time Calculations : Use event-driven programming (like the

event) to perform live arithmetic for totals and balances as items are added to a list. Database Connectivity

: Securely store all transaction data. Popular choices for VB.NET include Microsoft Access for smaller systems and SQL Server for larger enterprise needs. Report Generation

: Generate detailed financial summaries, tax reports, and payment histories using tools like Crystal Reports DevExpress Advanced Functionality for Modern Software Payment Status Tracking

: Monitor which invoices are paid, pending, or overdue, with the ability to update statuses post-save. Export Capabilities : Allow users to export billing data and invoices as files for easy record-keeping. User Role Management

: Implement login/logout functionality with different permission levels for staff and administrators. Integrated Calculator

: A built-in utility for manual adjustments or quick math during the billing process. Recommended Source Code Resources

For developers looking to study existing implementations, several repositories offer open-source foundations:

Developing billing software in VB.NET (Visual Basic .NET) involves creating a Windows Forms Application that manages products, calculates costs, and generates receipts. It typically utilizes a database like SQL Server, MS Access, or MySQL to store transaction and product data. Key Modules and Features

A standard billing system consists of several core modules to automate sales and inventory:

Product/Inventory Management: Add, update, and track product details such as stock levels and unit prices.

Customer/Subscriber Module: Store customer information like names, addresses, and payment history. Adding items to a bill Calculating subtotal, tax,

Transaction/Billing Engine: The core logic that calculates totals, taxes (like GST), and discounts in real-time.

Reporting and Invoicing: Generate printable receipts and sales reports for specific time periods using tools like Crystal Reports.

Security: A login system to manage user roles, such as Administrator and Staff.

In-Depth Review: VB.NET Billing Software Source Code

Introduction

The demand for efficient billing software has increased significantly in recent years, particularly among small to medium-sized businesses. A well-structured billing system can streamline financial operations, reduce errors, and enhance customer satisfaction. This review focuses on a VB.NET-based billing software source code, which claims to offer a comprehensive solution for businesses seeking to automate their billing processes.

Overview of the Software

The VB.NET billing software source code is designed to provide a customizable and user-friendly platform for managing billing operations. The software is built using Visual Basic .NET (VB.NET) and is compatible with the .NET framework. The source code is available for purchase or download, allowing developers to modify and tailor the software to meet specific business requirements.

Key Features

Upon examining the source code, we identified the following key features:

Invoice Management: The software allows users to create, edit, and manage invoices efficiently. It includes fields for customer information, invoice date, due date, and payment terms.
Customer Management: The system provides a centralized customer database, enabling users to store and retrieve customer information, including contact details and billing history.
Product/Service Management: The software allows users to manage products or services offered, including pricing, descriptions, and tax information.
Billing and Payment Tracking: The system tracks billing and payment history, providing a clear audit trail for financial transactions.
Reporting and Analytics: The software includes basic reporting features, such as generating invoices, customer statements, and sales reports.

Technical Analysis

The VB.NET billing software source code appears to be well-structured and follows standard coding practices. The code is organized into logical modules, making it easier to navigate and modify. The software uses a Microsoft SQL Server database, which provides a robust and scalable data storage solution.

Pros and Cons

Pros:

Customizable: The source code is available for modification, allowing developers to tailor the software to meet specific business requirements.
Cost-Effective: The software is built using VB.NET, which is a relatively low-cost development platform.
User-Friendly Interface: The software features a simple and intuitive interface, making it easy for users to navigate and manage billing operations.

Cons:

Limited Scalability: The software may not be suitable for large-scale enterprises, as it is built using a relatively older technology stack (VB.NET).
Limited Integration: The software does not appear to support integration with other business systems, such as accounting software or e-commerce platforms.
Security Concerns: The software may be vulnerable to security threats, as it uses a relatively older technology stack and may not have been updated with the latest security patches.

Conclusion

The VB.NET billing software source code provides a solid foundation for businesses seeking to automate their billing operations. While it offers a range of essential features, its scalability and integration capabilities are limited. However, for small to medium-sized businesses with simple billing requirements, this software can be a cost-effective solution.

Recommendations

Evaluate Business Requirements: Before implementing the software, carefully evaluate your business requirements to ensure that the software meets your needs.
Customize and Test: Customize the software to meet your specific requirements and thoroughly test it to ensure that it functions as expected.
Consider Upgrades: Consider upgrading the software to a more modern technology stack or integrating it with other business systems to enhance its functionality and scalability.

Rating

Based on our in-depth review, we rate the VB.NET billing software source code as follows:

Features: 7/10
Technical Analysis: 8/10
Pros and Cons: 6/10
Overall: 7.5/10

This rating reflects the software's potential as a cost-effective billing solution for small to medium-sized businesses, while also highlighting its limitations in terms of scalability and integration.

In the quiet hum of the "Old Port General Store," sat behind a cluttered desk, his eyes reflecting the blue glow of a cathode-ray monitor. He wasn't just a shopkeeper; he was a self-taught architect of logic. For years, the store’s billing was a mess of carbon-copy receipts and manual tallies that never quite added up. Tired of the chaos, Elias opened a new project in Visual Studio

He started with the skeleton, dragging buttons and text boxes onto a Windows Form . He called it the "Horizon Billing System." Designing the Face

: He meticulously arranged labels for "Customer Name," "Item Price," and "Quantity". He styled the labels to look like sleek text boxes, giving the interface a professional, modern feel. The Logic of Trade : He dove into the Visual Basic code , writing functions to handle the arithmetic of commerce.

' Simple calculation logic Elias wrote Dim total As Double = Val(txtPrice.Text) * Val(txtQty.Text) txtTotal.Text = total.ToString("C") Use code with caution. Copied to clipboard Connecting the Past

: To ensure no sale was ever lost again, he linked the software to an MS Access database

. Every transaction—from a single fishing hook to a bulk order of grain—was now etched into digital stone, tracking monthly bills and generating instant receipts.

One rainy Tuesday, a local fisherman named Silas walked in for his usual supplies. Elias typed the name, scanned the items, and with a single click, the "Horizon" system calculated the tax, added a loyalty discount, and printed a crisp receipt.

Silas stared at the paper, then at the monitor. "Fancy stuff, Elias. Where’d you get it?"

Elias just smiled, knowing that beneath the buttons and labels lay thousands of lines of source code

he’d built himself, transforming his humble shop into a digital landmark. He later shared his creation on

, hoping other small-town architects might find a use for his "Horizon".

Here’s an interesting, slightly opinionated review of VB.NET billing software source code — written from the perspective of a developer or small business owner evaluating such a solution.

🔍 Sample Feature Check (From an Average VB.NET Billing Project)

| Feature | Typical Quality | Notes | |--------|----------------|-------| | Invoice creation | ✅ Good | Usually works out of box | | Tax calculation | ✅ Good | Fixed formulas, may lack special cases | | Customer management | ✅ Basic | Works for small scale | | Inventory tracking | ⚠️ Basic | Often deducts stock locally, no batch/lot | | Backup/Restore | ❌ Rare | Often missing or manual file copy | | Multi-user support | ❌ Risky | No transaction handling in most free code |

Table: tbl_Products

CREATE TABLE tbl_Products (
    ProductID INT PRIMARY KEY IDENTITY(1,1),
    ProductCode NVARCHAR(20) UNIQUE,
    ProductName NVARCHAR(100),
    UnitPrice DECIMAL(18,2),
    StockQuantity INT,
    GST_Percent INT DEFAULT 0 -- 0, 5, 12, 18, 28
);

Core Features of the Billing System

Our billing software will include:

User Login & Role Management (Admin/Cashier)
Product/Inventory Management (Add, Edit, Delete, Search)
Customer Management (Walk-in vs Regular customers)
Point of Sale (POS) / Billing Module
Invoice Printing & Preview
Sales Report (Daily/Monthly)
Backup & Restore Database