Freelancers and self-employed professionals need a tool that is fast, reliable, and keeps their focus on client work, not administration. The best invoicing software for freelancers is one that offers easy billing for self-employed individuals without the complexity of full accounting suites.

Key features to look for:
- Time Tracking Integration: Convert tracked hours directly into billable line items.
- Expense Tracking: Easily add reimbursable expenses to the invoice.
- Client Management: A simple database to store client contact and billing details.
- Mobile App: Create and send invoices immediately after a project is completed.
Ailit is a top contender for invoicing software for freelancers because it combines powerful invoicing with simple inventory management, making it a comprehensive tool for product-based and service-based freelancers alike.