Top 10 Best Self Hosted Invoice Software of 2026

Bigcapital covers the core invoice artifacts needed for accounts receivable work, including tax rate configuration, invoice numbering sequences, and PDF output per invoice. It adds operational support for payment reminders and recurring invoice generation so the system can drive repeat billing cycles without manual retyping.

A key tradeoff is that the setup must be aligned to each business’s document and tax rules before production use, since invoice outputs depend on configured templates and numbering. Bigcapital fits situations where organizations want a self-hosted invoice record and want external systems to push and pull invoice state via API automation.

SolidInvoice fits organizations that want invoice creation, sending workflows, and AR tracking inside their own hosting boundary. The core document set includes standard invoice flows plus support for credit note and debit note operations to correct prior line items. Recurring invoice creation reduces operational load for subscription-like billing schedules.

A practical tradeoff is that automations and system integrations depend on the available API and import/export paths rather than out-of-the-box accounting connectors. SolidInvoice works best when invoicing data originates in CSV feeds or when an internal tool can push changes through the API, rather than when teams require broad marketplace-style integrations.

Kill Bill’s core value is its invoice lifecycle management tied to subscriptions and events, which reduces manual reconciliation when charges change. Invoice numbering sequences, tax rate configuration, and PDF invoice output support day to day invoicing tasks, while CSV export supports bulk handoff. Kill Bill’s API and webhook surface enables automated generation and downstream updates when invoices are created, paid, or corrected.

A key tradeoff is that teams need to model customers, subscriptions, and adjustments in Kill Bill’s domain concepts rather than treating it as a simple invoice template tool. Kill Bill fits best when invoice activity is driven by recurring billing rules and when invoice events must propagate to accounting systems with auditability.

Standout fit appears in multi system environments where the invoice source of truth must remain consistent across provisioning, billing, and accounting updates. If invoice creation is mostly ad hoc and template driven, the domain modeling overhead can outweigh the workflow gains.

Invoice Ninja is a self hosted invoicing system built for multi-user invoice workflows with configurable templates and numbering. It supports core billing documents like invoices, recurring invoices, credit notes, and pro forma documents, plus PDF generation and CSV import and export.

Management features cover tax rate configuration, client profiles, payment records, and invoice status tracking through a repeatable accounts receivable workflow. API access and automation options help connect invoice events to external systems.

InvoiceShelf generates and tracks invoices with a workflow built around invoice numbering, PDF output, and document status changes. The system supports client and product records and can handle recurring invoicing so invoices can be produced on schedule.

It also provides export and import paths for moving invoice data during setup migrations or ongoing reconciliation. InvoiceShelf is designed for self-hosted operation with an API surface that supports automation and external system handoff.

Akaunting is a self-hosted invoicing and accounting system that manages customer records, invoice numbering, and document templates in one place. Invoicing covers standard and recurring invoices, PDF generation, and accounts receivable workflows like payment status and reminders.

The data stays inside the installation, with imports for customer and invoice data and an API for integrating external systems. Governance is handled through the app’s built-in user roles and audit trail for accounting actions.

InvoicePlane differentiates itself with a mature, self-hosted workflow for invoices and recurring billing in a single application. The system models customers, products or service lines, taxes, invoice numbering, and payment reminders while generating PDF invoices from templates.

It supports recurring invoices and credit notes, plus import and export workflows that reduce manual data handling. A REST API and webhooks let external systems synchronize invoices and react to invoice lifecycle events.

Dolibarr is self-hosted invoicing software that also covers core back-office workflows like contacts, contracts, and order handling under one administration. It manages invoice numbering sequences, document generation to PDF, and common tax setups for invoice totals.

Recurring invoice generation and credit note documents support day-to-day accounts receivable adjustments. Integration depth is built through REST endpoints plus optional modules that attach to external systems for extended document and accounting workflows.

Odoo creates and sends invoices from a unified ERP workflow instead of treating invoicing as a standalone document tool. It supports customer invoicing and accounting posting with configurable tax rates, invoice templates, and recurring invoice creation for repeated billing cycles.

Document management includes PDF invoice outputs, invoice numbering sequences, and credit notes for reversals within the same accounts receivable process. Odoo also ties invoice status to payments and automates downstream accounting tasks through its server-side business logic.

Fakturama is self-hosted invoice software built for running invoicing workflows on-premises. It covers invoices, recurring invoices, credit notes, and customer payment reminders with document numbering and tax rate configuration.

The system supports multi-currency invoicing, PDF invoice generation, and CSV import and export for bulk data movement. Fakturama also exposes a REST API and supports webhooks for automation around invoice lifecycle events.