Online accounting · hosted & built in Germany · made in Germany

Your accounting. Entirely in the browser.

Cloud accounting for freelancers and small to mid-sized businesses: Write invoices, capture receipts, reconcile payments automatically, automated dunning and reporting — with DATEV export for your tax firm. GoBD-compliant, e-invoicing included.

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14 days free · no credit card · GoBD-compliant · servers in Germany

At a glance
Everything in one placeInvoices, receipts, banking, reports
FinTS payment matching5-stage, every TAN method
GoBD-compliant from day one10-year audit log, AES-256-GCM
True multi-entity supportSeveral legal entities, one account

Mandatory B2B e-invoicing from 01 Jan 2027? Already taken care of.

Every Accountix invoice can be a native e-invoice (Factur-X / ZUGFeRD) — no add-on, no surcharge, in every plan.

Features

Six reasons businesses choose Accountix

From your first invoice to the handover to your tax advisor — all in one place.

Invoices in minutes — e-invoicing included

Reusable presets, your own templates and numbering series. Every invoice optionally as an EN 16931-compliant e-invoice (Factur-X / ZUGFeRD, PDF/A-3) — validated and ready to send by email.

FinTS payment matching

Bank accounts connected natively via FinTS/HBCI. A 5-stage matching algorithm reconciles incoming payments automatically.

True multi-entity support

Several legal entities in one account: separate logos, letterheads, bank details, numbering series and VAT IDs.

Import instead of migration

Import existing invoices via drag and drop. Factur-X extraction or heuristic recognition. Three years of history in minutes.

GoBD-compliant from day one

Ten years of tamper-proof retention. Immutable audit log, PII encryption (AES-256-GCM), original-document preservation.

Automated dunning

Four-stage dunning with configurable deadlines and statutory default interest. Reminders are generated and emailed automatically — legally sound and always on time.

Solutions

Who Accountix is made for

Four typical use cases — backed by real features, not promises.

Membership fees that bill themselves

  • Fees as recurring invoices: set up once, Accountix creates the next invoice automatically every period.
  • Payments reconciled via FinTS — the board sees at once which fees are outstanding.
  • Tamper-proof audit log and separate logins for treasurer and board — your auditors will thank you.
Try it free More for clubs →

German small-business VAT rule? Accountix knows the difference

  • Small-business invoices automatically without VAT — with the correct § 19 UStG note on every invoice.
  • Free entry: line and amount, done. No mandatory fields you don’t need.
  • From quote to payment in one tool — instead of juggling Word, Excel and online banking.
Try it free More for freelancers →

Overdue invoices chase themselves

  • Four-stage dunning with deadlines and statutory default interest — reminders and demand letters go out automatically and on time.
  • Several companies under one roof: separate letterheads, numbering series and bank details per entity.
  • Mandatory B2B e-invoicing erfüllt: every invoice optionally as an EN 16931-compliant Factur-X/ZUGFeRD PDF.
Try it free More for SMEs →

Clients do the data entry — you receive clean books

  • DATEV export on demand or automatic: posting batches (EXTF) plus receipts, straight to your firm’s address.
  • Supplier invoices via email inbox: receipts land in the system automatically — original PDF included.
  • SKR 03/04 charts, debtor numbers, cost centers already maintained — no queries about missing allocations.
Try it free More for tax firms →
Integration & interfaces

Fits into your existing software landscape

Accountix doesn’t replace your tools — it connects to them. DATEV for the tax firm, an open API for everything else.

DATEV-Export

Posting batches in DATEV format (EXTF) for outgoing and incoming invoices. Your tax advisor imports directly — no media breaks, no retyping. GoBD and CSV export on top.

Standard from Business · DATEV Pro from Pro

REST-API & Webhooks

Connect Accountix to the software you already use today — CRM, ERP, online shop or your own tools. Create invoices programmatically, receive payment and status changes via webhooks.

Webhooks from Business · REST API from Pro

Open formats, no lock-in

Factur-X / ZUGFeRD (EN 16931), PDF/A-3, CSV and DATEV. Your data is yours: full export at any time — even when you leave.

Preise

Transparent, fair, no surprises

All plans include free updates and support from Germany.

Try Business free for 14 days — full feature set, no credit card required.
Request a trial →
Monthly
Annually save 20 %
Tier 1
Solo
€ 15 / month
  • 1 user
  • 1 company / issuer
  • 50 invoices per month
  • Native ZUGFeRD / Factur-X
  • CSV bank import
  • DATEV CSV export (basic)
  • 2 GB document storage
  • Email support (48 h)
Try it free
Recommended
Tier 2
Business
€ 39 / month
  • Up to 5 users
  • Up to 3 companies / issuers
  • 500 outgoing + 200 incoming invoices
  • 1 FinTS bank connection
  • 4-stage dunning + payment matching
  • DATEV export (EXTF posting batches)
  • Webhooks (events)
  • 20 GB document storage
  • Support within 24 h
Try it free
Tier 3
Pro
€ 99 / month
  • Up to 15 users
  • Unlimited companies / issuers
  • Unlimited invoices
  • 3 FinTS bank connections
  • REST API (read + write) + webhooks
  • DATEV Pro — SKR03/04, KOST1/2, posting keys, receipt-image export
  • GoBD export & 10-year audit log
  • Custom templates & logo · 200 GB
  • Support with 4 h SLA
Try it free
Tier 4
Enterprise
from € 299 / month
  • Unlimited users
  • SSO (SAML / OIDC)
  • Raised API limits + dedicated webhook quotas
  • White-label available
  • Dedicated instance
  • 99.9 % SLA guarantee · TB storage
  • DATEV interface-partner path on request
  • Custom integration
Request a trial
Optional add-ons
Additional FinTS bank connection+15 €/mo
Additional user+5 €/mo
+100 invoices / month+10 €/mo
+50 GB storage+5 €/mo
Onboarding (1×60 min)149 €
Frequently asked questions

Everything you need to know

Who is Accountix for?
Accountix is online accounting for freelancers and small to mid-sized businesses. The Solo plan (15 €/month) covers sole proprietors with modest invoice volumes; growing companies use Business or Pro with DATEV export, automated dunning, FinTS bank reconciliation and several companies in one account. You can switch plans at any time.
What is an e-invoice under EN 16931?
An e-invoice is an electronic invoice in a structured, machine-readable format. Germany uses the Factur-X profiles (ZUGFeRD 2.x): a PDF/A-3 document with an embedded XML file. Since January 2025 every business must be able to receive e-invoices; from January 2027, sending them becomes mandatory in B2B as well.
How does Accountix differ from lexoffice or sevDesk?
Accountix was built specifically for professional service providers and businesses. The core differences: native Factur-X generation (not a retrofit), true multi-entity support without surcharges, FinTS-based payment matching with every TAN method, and a deliberately professional aesthetic. The Pro plan includes unlimited legal entities.
Is Accountix GoBD-compliant?
Yes. Ten years of tamper-proof retention at the database level, an immutable audit log, AES-256-GCM encryption of personal data, and original-document preservation for imported receipts. This is not retrofitted compliance — it is the base architecture. (GoBD are the German principles for orderly digital bookkeeping.)
How does FinTS payment matching work?
Accountix connects directly to your bank via FinTS/HBCI, the German banking standard. All TAN methods are supported (chipTAN, smsTAN, photoTAN, VR-SecureGo+). Incoming transactions are matched by a 5-stage algorithm; at 85 % confidence the invoice is automatically marked as paid.
Can I import existing invoices?
Yes. Drop existing PDFs into the app. Factur-X/ZUGFeRD invoices have their XML data extracted automatically; conventional PDFs go through heuristic recognition. Your last three years of invoice history are in the system within minutes.
Where is my data stored?
All data lives on servers in Germany (Hetzner, Falkenstein/Nuremberg). Personal data is encrypted with AES-256-GCM. GDPR- and GoBD-compliant, with regular backups and no data transfers to third countries.

Request your free trial

Try Accountix with no strings attached. Leave your contact details — we’ll activate your trial and get back to you within one business day.

Phone030 76 73 67 41