XRechnung and suitable ZUGFeRD profiles are checked against the European invoice standard.
Check e-invoices. Clarify the next step.
Receive XRechnung and supported ZUGFeRD invoices in one place, review technical findings and prepare approved documents for your tax adviser.
from €9.99 per month · 14-day free trial
Register for free, confirm your email, enter your company details and choose a plan – your invoice inbox is then activated automatically.
Check an e-invoice for free
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What exactly is checked
One invoice address for all suppliers. The KoSIT validator checks XRechnung and ZUGFeRD in the EN 16931 profile, and we explain common findings in plain language; plain PDF invoices are accepted but not checked with KoSIT. Your tax advisor receives a package with the posting batch, originals and check reports of your approved e-invoices; plain PDF receipts are not included.
The technical check supports, but does not replace, your own review of the invoice.
- No system migration required
- The original file remains unchanged
- Traceable review path
Understand the issue. Know the next step. Prepare the handover.
One possible workflow for a technical issue. You retain responsibility for the substantive review and decide what goes to your tax adviser.
- 01
See the issue
A supported e-invoice is not ready for export yet. Its invoice data, report and reason remain together in the same record.
- 02
Prepare the clarification
Read the report and request a corrected file from the supplier if needed. Review and copy the message template; you send the message yourself.
- 03
Hand over with control
Check the corrected invoice again and approve its content. Prepare eligible e-invoices as DATEV CSV/EXTF or an adviser package; your adviser imports the files.
What the handover includes
- Plain PDF receipts are accepted, but are not checked with KoSIT and are not part of the adviser package.
- Starter includes individual invoice exports. Bulk export and archive ZIP are included from Standard.
- Direct transfer to DATEV Unternehmen online and the sevdesk connection are in preparation. The available handover uses files.
Does the Inbox fit your current workflow?
I collect invoices through email and folders
The Inbox may help when questions, approvals and preparation for your tax adviser are scattered. Agree on the CSV/ZIP import with your adviser first.
I use DATEV Unternehmen online
If your workflow already works well, another inbox is not automatically necessary. Look for a specific unmet need, such as resolving invoice issues within your company. A direct DUO connection is not available yet.
I use sevdesk or other accounting software
If your software already covers invoice intake, your existing workflow may be sufficient. Consider the Inbox for a specific unresolved issue; a direct sevdesk connection is not available yet.
From receipt to handoff
Every invoice stays in a clear state. Move through the process to see how intake, review, approval and export fit together.
Receive
XRechnung and ZUGFeRD arrive where your team expects them, regardless of which supplier sends them.
- A dedicated intake address for each organisation
- One view of new and outstanding invoices

Keep original files and review history
Original storage is available during active membership, followed by 30 days to export. You are responsible for subsequent statutory retention.
Production data is processed on European infrastructure in the Frankfurt region.
What still needs attention before handover?
See the processing status of received invoices: which are approved, which are blocked and which have already been exported.
How invoice intake works
Everything at a glance
Invoices, statuses and ownership remain in one shared workspace.
Spot gaps early
Outstanding reviews and missing steps become visible before handoff is due.
Keep the history
The path from intake through export remains traceable in the invoice record.
Clean handoffs instead of loops of questions.
Clients deliver more than files: they provide a prepared, traceable invoice intake process.
- Clients and periods remain clearly separated
- Approval status is visible before handoff
- A package for approved, eligible e-invoices
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The important evidence stays within reach.
Security and privacy do not belong in the small print. The relevant foundations are directly reviewable and deliberately separated from sales copy.
Security approach
Technical and organisational safeguards, access controls and operational foundations.
Review securityData protection
Transparent information about processing, legal grounds and the rights of data subjects.
Read privacy detailsDPA template
The data processing agreement is available for your organisational review.
View DPAPractical knowledge
Practical guidance on XRechnung, ZUGFeRD, receiving duties and DATEV handoff.
Open knowledge baseQuestions before you start
Isn't a PDF also an e-invoice?
Do I need to forward my existing email?
We use DATEV. Does this fit?
What about Kleinunternehmer?
Can I write invoices with this?
Where is my data stored?
Manage invoices in one place
Set up the central intake and guide the first e-invoice all the way to handoff with a traceable process.
The photographic work scenes are AI-generated illustrations, not depictions of actual customers. The product views show the real application with sample data. DATEV is a registered trademark of DATEV eG; mentioning it does not imply approval of this product.