6-file handoff

At the end of every closed period, KanzleiSynchron produces a handoff pack for the tax advisor. It consists of exactly six files — everything the firm needs to book and audit, in one sealed bundle.

The six files

File	Content	Purpose
UStVA preview	Advance VAT return, as a preview	The period’s tax liability at a glance
BWA	Business analysis (Betriebswirtschaftliche Auswertung)	The period’s earnings position
ZM	Recapitulative statement (Zusammenfassende Meldung)	Intra-EU sales
DATEV-EXTF	Verified booking batch (`EXTF*.csv`)	Direct import into DATEV
Audit log	Complete record of all actions	Traceability / GoBD
manifest.sha256	SHA-256 checksums of all files	Proof of immutability

Why a manifest

The manifest.sha256 file contains a SHA-256 checksum for each of the other five files. The tax advisor can therefore verify themselves that the pack was not altered after handover — a single changed byte changes the checksum.

Build the pack

Go to Handoff (/handoff).
Select a closed period (open exceptions block the export — see DATEV-EXTF validation).
Check the DATEV preview and pick the chart of accounts (SKR03/SKR04). You can download draft variants for proofreading first: KS_DATEV_Entwurf_*.csv and KS_EXTF_Entwurf_*.csv.
Use the HandoffPackCard to build the 6-file pack.
On closed periods, two separate cards appear:
- AuditPackCard — a standalone audit pack,
- SendStbCard — dispatch to the tax advisor.
Send → dispatch goes out via the configured channel.

A full walkthrough of the handoff page is on Handoff to the tax advisor.

Verify checksums

The tax advisor can check integrity locally, e.g. with:

sha256sum -c manifest.sha256

If all checksums match, the pack is unaltered.

Next step

Background on immutability and the close process: GoBD & period close.