Finance and accounting decision

Invoice Ninja

A single developer can build a useful, self-hosted invoicing workflow (invoices, PDF, Stripe payments, email) in about a week, but matching Invoice Ninja's full feature set (bank sync, e-invoicing/PEPPOL, native apps, integrations catalogue, enterprise features) is larger and not practical to fully replicate.

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You pay

$14/mo

$168/yr

Read off the official pricing page.

You’d pay instead

$50one-off30 h to build

$0/mo6 h/mo upkeep

On cash alone, building overtakes the subscription at 1 seat.

Open-source builds that already do this

Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need - the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship. All Invoice Ninja alternatives, with the arithmetic →

Code Invoice Ninja publishes itself

Not a way out of the subscription - these are the vendor’s own repositories. Worth a look for how they build, and for anything you would have to integrate with.

What a replacement has to do

  • Create and send invoices, accept online payments, record payments and view invoice status

What it still won’t have

  • Bank account sync (Yodlee / GoCardless)
  • e-Invoicing / PEPPOL network access
  • Branded client portals and hosted subdomains
  • Mobile & desktop native apps
  • Built-in integrations catalogue (Zapier/Make) and many prebuilt connectors

What remains hard

  • Brand trustTrusted by 200,000+ businesses · Free forever · No credit card
Read the build prompt

First-year cost

Keep paying

Paying is—cheaper in year one.

On cash alone, building overtakes the subscription at 1 seat.

Paid seatsseats

Money you would actually spend

Keep paying
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Subscription price × seats × 12

Build it
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AI build —APIs + hosting —

Time you would spend

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What you would spend

What we assumed

The verdict above measures whether you could build it. This one is only about money.

Runnable build prompt

Not run yet
Build a minimal self-hosted invoicing app using Django + React + Postgres. In scope: user account, client CRUD, product/service library, invoice CRUD with real-time HTML preview and PDF generation, email invoices via SMTP, Stripe checkout link integration and webhook handlers to record payments, simple dashboard showing outstanding/paid invoices, and a REST API for invoices. Out of scope: bank sync (Yodlee), PEPPOL/e-invoicing, native mobile apps, extensive marketplace integrations, and multi-tenant enterprise user permissions. Include input validation, error handling, webhook signature verification, unit tests for core business logic, and basic end-to-end tests for invoice creation and payment flow. Provide Docker Compose for local dev and a systemd-deployable production setup with instructions for TLS, database migrations, and backups.
How we checked5 sources · 3/3 runs agreed · evidence score 67

How the score was reached

  • Partly verdict base52
  • An open-source build was found+5
  • 5 cited sources+3
  • Price verified on pricing page+3
  • 3/3 assessment runs agreed+4
  • Evidence score67

The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.

How scoring works →

Cited sources · 5

Every page the run actually retrieved.

Integrity checks

What held up, and what did not.

✓ Price read off the page✓ 3 independent runs, one answer✓ Citations limited to fetched pages! 1 moat quoted from the page