Windows Desktop Invoicing Software
Summary
Freelancer Client is hiring: Windows Desktop Invoicing Software.
Location: Remote
I need a standalone Windows desktop application that lets me create and manage invoices, store a searchable client database, and track incoming payments from issue to settlement—all in one place and without relying on a web browser. The program should install cleanly on modern Windows machines, load quickly, and keep all data safely on the local drive (a lightweight file-based database such as SQLite is fine, but I am open to your suggestion).
What you'll do:
• brief setup/build instructions so I can recompile if needed in the future
Benefits & perks:
• mark invoices as paid or partially paid and view real-time outstanding balances
Skills: .NET, Windows Desktop, C# Programming, Software Architecture, WPF, Software Development, SQLite, Database Management
Budget: $30–$250 USD
Source: Freelancer Client via Remote / Online. Apply on the source website.
Original
I need a standalone Windows desktop application that lets me create and manage invoices, store a searchable client database, and track incoming payments from issue to settlement—all in one place and without relying on a web browser. The program should install cleanly on modern Windows machines, load quickly, and keep all data safely on the local drive (a lightweight file-based database such as SQLite is fine, but I am open to your suggestion).
I want an intuitive interface where I can:
• add or edit client records and immediately pull them into a new invoice
• generate invoices with automatic numbering and basic tax or discount fields
• mark invoices as paid or partially paid and view real-time outstanding balances
Please deliver:
• a compiled 64-bit Windows installer (.exe or .msi)
• complete, well-commented source code
• brief setup/build instructions so I can recompile if needed in the future
I’m comfortable with C#/.NET (WPF or WinForms) or similar desktop frameworks; feel free to recommend another Windows-friendly stack if it achieves the same smooth user experience.
For acceptance, I will install the application on a fresh Windows machine and verify that invoice creation, client lookup, and payment status updates work exactly as described above without errors or external dependencies.
Location & Details
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