Your Finance Tool. Start Free. Grow Without Limits.

Invoices, quotes, time tracking, taxes — all in one app. Start free on your device. Grow with cloud sync, AI and tax advisor portal.

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100% Open Source GDPR Compliant Made in Germany

Freelancers have it hard enough

Expensive subscription tools you don't need

Your financial data on someone else's servers

Hours spent sorting receipts and estimating taxes

There's a better way.

Everything you need. Nothing you don't.

Invoices & Quotes

Create professional documents in seconds and send them as PDF.

Time Tracking with Timer

Track working hours and transfer them directly to invoices.

Client Management

Contacts, projects and communication in one place.

PDF & XRechnung/ZUGFeRD

Generate e-invoices in the legally required format.

EPC QR Code

Clients pay by scan — faster payments guaranteed.

Business Expenses + OCR

Snap a photo of receipts, AI reads everything automatically.

Dashboard & Analytics

Revenue, expenses and profit always at a glance.

Tax Tips & Checklist

AI-powered suggestions so you never leave money on the table.

Recurring Invoices

Set up once, generate automatically.

Payment Reminders

Send payment reminders with a single click.

Deadline Calendar

Never miss tax deadlines and due dates again.

GoBD Audit Trail

Tamper-proof records for tax authorities.

DATEV & EUeR Export

CSV export for your tax advisor. SKR04 compatible.

Keyboard Shortcuts

Navigate and work at lightning speed. Press ? for the overview.

AI Receipt Scanner

Upload a photo, AI reads date, amount and VAT automatically.

Why Penunz?

Data Privacy

All data stays on your device. No servers, no tracking, no third parties. Period.

AI Power

Snap receipts, AI reads everything. Tax tips tailored to you. Smart alerts before it gets expensive.

No Vendor Lock-in

Open source, JSON backup, CSV export. Your data belongs to you — forever.

Tax Advisor Ready

All data ready for your tax advisor — DATEV export, EUeR, receipts. No more shoebox accounting.

Transparent. Fair. No Fine Print.

Free

0 EUR / forever

Local, offline, all core features

  • All core features
  • Unlimited invoices
  • PDF + XRechnung export
  • Local on your device
  • JSON backup/restore
Get Started Free
Popular

Starter

9 EUR / month

Cloud, sync, email delivery

  • Everything in Free, plus:
  • Cloud sync & multi-device
  • Send invoices via email
  • Automatic backups
  • DATEV & EUeR export
Choose Starter

or 90 EUR/year (2 months free)

Pro

19 EUR / month

AI features + tax advisor portal

  • Everything in Starter, plus:
  • AI receipt scanner (OCR)
  • Tax advisor portal
  • Encrypted invoice links
  • Custom email templates
Choose Pro

or 190 EUR/year (2 months free)

Business (39 EUR/mo): Multi-user, partner API, priority support — Contact us

Frequently Asked Questions

Is the tool really free?
Yes, all core features are free and always will be. Optional Starter and Pro features (cloud sync, AI receipt scanner, tax advisor portal) start at 9 EUR/month.
Where is my data stored?
On the Free plan, locally in your browser. With Starter or Pro, securely encrypted in the cloud — synced across all your devices. You decide.
What happens if I clear my browser cache?
On the Free plan: local data will be lost — that's why you should create regular JSON backups. With Starter/Pro: your data is safe in the cloud, just log in again.
Is the tool compliant with tax regulations?
Yes. All invoices contain the required information per Section 14 UStG. XRechnung (EN 16931) and ZUGFeRD are supported. The GoBD audit log documents all changes in a tamper-proof manner.
Can my tax advisor work with this?
Yes. DATEV export (SKR04) and EUeR CSV can be imported directly into common accounting software.
Does the tool work offline?
Yes, after the first load everything works offline. The only exception: AI receipt scanning (optional, requires internet).
What professions is the tool suitable for?
For all self-employed professionals and freelancers: IT, consulting, design, trades, coaches, therapists and more. Tax tips are currently optimized for IT freelancers.
Can I use multiple tax rates?
Yes. Each invoice line item can be individually set to 19% or 7% VAT. The tax breakdown is generated automatically.
How does the AI receipt scanner work?
Upload a photo or PDF — the AI automatically recognizes the date, amount and VAT. Offline via Tesseract.js (free) or optionally via Claude Vision API (more accurate, requires API key).
Is there a mobile app?
Not yet as a native app, but the tool is responsive and works in the mobile browser. A PWA version is planned.

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