🏛️ Keystone Accounting Lite

The Self-Hosted Financial Suite for Professionals

Take control of your business finances with a robust, secure, and feature-rich accounting system designed for simplicity and power.

Keystone Accounting Lite is a production-ready, PHP-based web application that puts you in the driver's seat. Whether you are a freelancer, a small agency, or a developer looking for a solid foundation, Keystone delivers professional invoicing, inventory management, and client self-service without the monthly subscription fees of SaaS platforms.

🌟 Key Features

💰 Smart Invoicing & Quoting

• Professional Estimates: Create beautiful quotes and instantly convert them into invoices with a single click.
• Recurring Billing: Set up automated recurring invoices (Weekly, Monthly, Quarterly, Annually) for retainers and subscriptions.
• Income Projection: Visualize your future cash flow with the Projected Recurring Income chart.
• Multi-Currency Support: Bill clients in their local currency while tracking your base revenue.

👥 Client Management & Portal

• Dedicated Client Portal: Give your clients a professional login area to view their invoices, quotes, and payment history securely.
• Statement Generation: Generate and email detailed Statements of Account (PDF) directly to clients.
• 360° Client View: Track outstanding balances, active quotes, and lifetime value per client.
• Impersonation Mode: Admins can securely view the portal exactly as the client sees it for easy support.

📦 Inventory & Expense Tracking

• Stock Management: Track physical stock levels with automatic deductions upon invoicing.
• Low Stock Alerts: Get notified instantly when items dip below your re-order levels.
• Stock Valuation: Real-time reports on the total value of your current inventory assets.
• Expense Manager: Log business expenses, attach receipts, and categorize spending for accurate profit calculation.

📊 Powerful Reporting & Analytics

• Executive Dashboard: Get a bird's-eye view of your business with "Top 5" performers, new customer trends, and overdue alerts.
• Financial Reports: Comprehensive reports including Sales (P&L), VAT/Tax, Aged Receivables, and Quote Conversion rates.
• Visual Data: Interactive charts and data tables with Dark Mode support for easy reading in any environment.

⚙️ System Control & Security

• Audit Trails: Every critical action is logged. Know exactly who changed what and when.
• Email Auditing (BCC): automatically BCC your admin address on all outgoing system emails to keep your own paper trail.
• Auto-Updates: A built-in update system that handles database migrations and file patching automatically.
• Role-Based Access: Secure Admin and User roles to control sensitive data access.

🚀 Why Choose Keystone?

✅ Your Data, Your Server

Host it on your own Local AMPPS server or any standard Linux C-Panel hosting. You own your financial data 100%.

✅ Production Ready

Built on a strict MVC (Model-View-Controller) architecture using native PHP 8.2 and MySQL. It's fast, secure, and easy for developers to extend.

✅ Modern Experience

Features a sleek, responsive UI built with Bootstrap 5. Includes a system-wide Dark Mode, responsive tables, and interactive toasts for a smooth user experience.

🛠️ Technical Specs

• Backend: PHP 8.2+ (Native/Vanilla MVC Pattern)
• Database: MySQL / MariaDB
• Frontend: Bootstrap 5 Framework
• Reporting: Chart.js & DataTables
• PDF Engine: DomPDF for high-quality document rendering

📢 New in Version 1.0.7

• Cash Flow Forecasting: New projection tools for recurring revenue.
• Enhanced Stability: Improved routing logic for Linux environments and smarter session handling.
• Visual Polish: Unified dark-mode styling across all reports and grids.

Keystone Accounting Lite — Simple enough for freelancers, powerful enough for business.