Invoice Ninja

Invoice Ninja

Powerful and flexible invoicing with robust automation for seamless financial workflows—tailored for SMEs, available cloud or self-hosted.

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Invoice Ninja is a powerful platform for invoicing, quotes, expenses, tasks and time tracking. It can be used as a hosted SaaS solution or as a self-hosted open-source system. The application is extremely flexible and very suitable for small and medium enterprises (SMEs). Quickly ready for use via cloud or Docker installation. With powerful automations and integrated reports for liquidity and financial analysis.

Main functions

  • Professional invoice creation & sending with fully customizable templates
  • Recurring invoices & automatic payment reminders for liquidity optimization
  • Client portal for viewing invoices, payment status, documents and payments
  • Integration with 45+ payment gateways & PEPPOL e-invoicing network (Enterprise plan)
  • Supports multiple currencies, languages and tax requirements – including EU VAT
  • Management of expenses, suppliers, project costs & purchase orders (convert PO to expenses)
  • User and role management, activity notifications, API & Zapier integration
  • Project management with tasks, time tracking and direct billing options

Advantages

  • Cost-effective & scalable: free version for small projects, scalable Pro/Enterprise plans for growing needs
  • Full control over data: achievable through self-hosting, ideal for data protection requirements and government users (incl. xRechnung support via add-on)
  • Flexible customizations & automation via API access and webhooks (e.g. for paid or overdue invoices)
  • Strong community support and active development, stable release cycles (e.g. v5.x)

Your desired app for invoicing?

Missing a specific function or integration? Contact us — we support you with:

  1. Consulting: Determining the best configuration for your requirements
  2. Installation: You can use SaaS or we professionally implement your self-hosted Docker installation
  3. Onboarding & Support: Training your team and managing your system
  4. Integrations: PEPPOL e-invoicing, accounting systems, CRM, automations

With Invoice Ninja you rely on a modern, professional invoice management tool - individually tailored and automated.

FAQ

  • Invoice Ninja is a versatile invoicing and financial management platform suitable for freelancers, small and medium enterprises (SMEs). It offers invoicing, quotes, expenses, tasks, and time tracking, available as hosted SaaS or self-hosted open source for full data control.

  • Key features include professional invoice creation with customizable templates, recurring invoices, automatic payment reminders, client portals, multi-currency and tax support (including EU VAT), integration with 45+ payment gateways, project management with time tracking, and automated financial reporting.

  • Invoice Ninja offers a free tier for small projects and scalable Pro and Enterprise plans for growing businesses, with flexible API access and webhook automation to customize workflows and integrations such as PEPPOL e-invoicing, accounting systems, or CRM tools.

  • The platform offers a free plan allowing up to 100 clients with unlimited invoices, a Pro plan at around $12/month billed annually, and an Enterprise plan for more advanced features and users starting at about $16/month billed annually. Discounts are available for yearly payments with some plans offering extra months free.

  • Yes, Invoice Ninja supports self-hosted Docker installations for organizations needing full control over data and compliance. Custom integrations, add-ons, and white-labeling options are supported to tailor the experience to specific business needs.