"DATEV-Compatible" vs. "Official Schnittstellen-Anbieter": What the Difference Means in Practice

In Germany, digital accounting is built on clear standards and shared responsibility. At the center of this ecosystem is DATEV, enabling collaboration between companies, tax advisors, and auditors.

As more software solutions connect to DATEV, two terms appear frequently: "DATEV-compatible" and "official DATEV Schnittstellen-Anbieter". Both describe valid ways of working with DATEV, but they differ in how the connection is governed and validated.

What "DATEV-Compatible" Usually Describes

A DATEV-compatible solution is software that can prepare or transfer data in a form that DATEV systems can process.

This often includes:

• Creating exports or documents for DATEV upload
• Supporting manual or semi-automated handovers
• Working alongside existing DATEV workflows
• Providing flexibility for specific operational setups

These solutions can be effective and widely used, especially where processes are clearly defined and well controlled.

What Makes an "Official DATEV Schnittstellen-Anbieter" Distinct

An official DATEV Schnittstellen-Anbieter uses interfaces that are officially provided and supported by DATEV, such as Rechnungsdatenservice 1.0.

What distinguishes this model is not only the interface itself, but the formal technical and security validation behind it.

How DATEV Reviews and Approves Interfaces

To be recognized as an official Schnittstellen-Anbieter, a software provider must pass a DATEV-defined technical and security review, which typically covers:

Correct use of DATEV interfaces

The solution must use the API exactly as specified — including data structures, field mappings, and validation rules.

Data integrity and traceability

DATEV verifies that documents and data are transferred without alteration and remain clearly traceable from source to DATEV.

Process logic and status handling

The interface must reflect how DATEV systems expect documents to be handed over, processed, and updated.

Security and access control

Authentication, authorization, and data transmission must meet DATEV's security standards.

Operational stability

The integration must behave predictably under normal and error conditions.

This review ensures that the interface is not just technically functional, but reliably aligned with DATEV's operational model.

What This Means for Audits and Compliance

In day-to-day work and during audits, this validation becomes tangible.

With official Schnittstellen:

• The data path into DATEV is clearly defined and documented
• Original documents remain linked and accessible
• Status changes are understandable and reproducible
• Questions from tax advisors or auditors can be answered transparently

This does not mean that other approaches are non-compliant — rather, official interfaces are designed to fit seamlessly into audit and documentation expectations from the start.

When the Difference Becomes Relevant

The distinction typically matters more when:

• Invoice volumes increase
• Multiple stakeholders (finance, Steuerberater, auditors) are involved
• Documentation and traceability requirements grow
• Processes are expected to scale over several years

In such cases, standardized and reviewed interfaces reduce coordination effort and uncertainty.

Choosing with Clarity

Both DATEV-compatible solutions and official DATEV Schnittstellen-Anbieter have their place. The key is understanding how the connection to DATEV is governed and what level of standardization best supports your processes.

A helpful guiding question is: