Collmex
6.1/10German cloud accounting, invoicing and lightweight ERP software for small businesses, freelancers and associations, with DATEV export and ELSTER VAT filing.
Data last updated November 2026 · Our methodology
Overview
Collmex is a browser-based accounting and business software suite from Collmex GmbH, based in Saarbrücken. It has been on the market since 2003 and is aimed at German small businesses, freelancers and clubs. It is sold as separate modules: Buchhaltung for bookkeeping, Rechnung for invoicing, Verein for association management, and complete packages that add inventory, purchasing, a simple CRM, project time tracking and an online shop interface. The bookkeeping module uses the SKR03 and SKR04 charts of accounts. It covers balance sheets, profit and loss statements, income surplus accounting (EÜR), BWA reports, fixed assets and travel expenses, and it files VAT advance returns via ELSTER. Bank transactions come in through HBCI online banking and are matched to booking suggestions. Data can be exported to DATEV for tax advisors, and a read-only auditor role supports tax audits. Pricing is monthly, billed by direct debit, and you can cancel at the end of any month. Free tiers exist for bookkeeping and invoicing. Paid modules start at 8.95 EUR a month, and complete packages run from 16.95 to 46.95 EUR a month, all excluding VAT. Most plans have a fixed number of users. Only the pro package and Buchhaltung basic let you add users, at 11.95 EUR each per month. Third-party sources report connections to DATEV, Shopify, WooCommerce, Stripe and PayPal, plus an HTTP API and CSV and XML interfaces. Data is hosted in an ISO 27001-certified data center in Cologne. The main drawback is that the software is German-only and its interface is plain and dated. It suits companies of up to about 30 employees rather than growing or international businesses.
Our Rating
Who Collmex is best for
Good fit
Built for German small firms, and a third-party review gives its typical user size as 1 to 30 employees.
The free tiers and EÜR support suit sole traders.
- Nonprofits7/10
A dedicated Verein package covers member management, dues billing and SEPA direct debit.
Less suited
- Enterprise2/10
Third parties advise moving to a larger platform beyond about 30 employees.
Pros & Cons
Pros
- Free bookkeeping and invoicing tiers, with paid modules from 8.95 EUR a month, put it among the cheapest German options.
- Covers German requirements: SKR03 and SKR04, ELSTER VAT returns, DATEV export and GoBD-compliant archiving.
- HBCI bank import with automatic booking suggestions, which one reviewer said were accepted about 75% of the time.
- A dedicated association package handles members, dues and SEPA direct debit.
- Hosted in a German ISO 27001-certified data center, with monthly cancellation.
Cons
- The interface is plain and dated, according to reviewers, and the many booking templates take time to learn.
- German-only, and not suited to international or multi-currency businesses.
- Support is reportedly email-only.
- Most plans have fixed user counts that cannot be expanded.
- Not a full ERP: it is weak for complex warehouse or production needs and is not recommended beyond about 30 employees.
Key Features
Collmex Pricing
Buchhaltung light
- Users not expandable
- Up to 500,000 bookings
- 1 admin, 1 bookkeeper, 1 auditor
Buchhaltung basic
- Up to 500,000 bookings
- 25 employee portal users
- Extra users 11.95 EUR/month
- 1 admin, 1 bookkeeper, 1 auditor
Komplettpaket basic
- Users not expandable
- 1 admin, 1 bookkeeper, 1 auditor
- 100,000 documents included, up to 500,000
Komplettpaket plus
- Users not expandable
- 1 admin, 1 bookkeeper, 1 auditor
- 100,000 documents included, up to 500,000
Komplettpaket pro
- 50 employee portal users
- Extra users 11.95 EUR/month
- 1 admin, 1 bookkeeper, 1 auditor
- 100,000 documents included, up to 500,000
Frequently Asked Questions
Yes. There is a free, non-binding 30-day trial, and free tiers exist for the bookkeeping and invoicing modules.
No. Billing is monthly by direct debit, and you can cancel at the end of any month. No annual prices are listed.
Yes. Collmex exports to DATEV and offers bookkeeper and read-only auditor roles.
In a data center in Cologne, Germany, certified by TÜV SÜD to ISO/IEC 27001:2022.
Bookings, quotes, orders, invoices, deliveries, supplier orders, production orders, addresses and products all count as documents.
A third-party review reports support for the ZUGFeRD and XRechnung formats.
Similar Tools
See all alternatives
Cloud accounting software from Zoho for small and growing businesses, covering invoicing, bank reconciliation, bills, inventory and financial reporting.
Pleo is a European spend management platform that gives small and mid-sized businesses company cards, receipt capture, reimbursements and supplier invoice payments.
A German cloud tool for bookkeeping, invoicing, receipt capture, VAT filing and optional payroll, made for freelancers and small businesses.