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Preparatory Bookkeeping for DATEV

DE Vorbereitende Buchhaltung für DATEV

Introduction

This article describes how JustOn Billing & Invoice Management can support you in preparing bookkeeping data for invoices if you do your accounting in DATEV.

JustOn Billing & Invoice Management can generate booking details from invoices and invoice line items and transfer them to DATEV. The specific configuration depends on the type of G/L accounts you use in DATEV and how you want to transfer the data.

Bookkeeping data creation: Basic principles

Generally, JustOn Billing & Invoice Management adheres to the following principles when generating bookkeeping data:

  • Postings are separated by statement (that is, invoices for revenue or expense bookings).
  • Revenue postings are made with the debtor account (AR account) as the contra account.
  • Expense postings are made with the creditor account (AP account) as the contra account.

    Offsetting expenses against earnings is expressly excluded ("prohibition of set-off" in accordance with § 246 (2) of the German Commercial Code).

  • Cancellations are handled through general reversal.

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Data Transfer Options

JustOn Billing & Invoice Management supports two methods for transferring bookkeeping data to DATEV:

Method Description Target System
JustOn Connector for DATEV Direct integration that transfers booking details to DATEV Unternehmen online DATEV Unternehmen online
CSV Export Export in DATEV CSV (EXTF) format for manual import DATEV Kanzlei-Rechnungswesen

Info

For invoice-related booking data, the JustOn Connector for DATEV is the recommended option as it provides a seamless, automated data transfer.

For payment-related booking data or account master data, the CSV export is the only option.

For details, see DATEV Support.

Booking Approaches

JustOn Billing & Invoice Management supports two fundamental approaches for generating booking data, depending on the type of G/L accounts configured in DATEV:

Using Automatic Accounts

DATEV automatic accounts (Automatikkonten) are G/L accounts that are configured to automatically calculate and post taxes based on the gross amount. When using automatic accounts, JustOn Billing & Invoice Management creates one booking detail that includes both the net revenue and the tax.

Characteristics:
  • Single posting: Debtor to Revenue (gross amount including tax)
  • DATEV automatically calculates and posts the tax to the appropriate tax account
  • Requires target G/L accounts with the AM function (Automatische Mehrwertsteuer) enabled in DATEV
Required configuration:
  • Global settings Create Bookkeeping Data and Enable Accounting in Gross Values selected
  • G/L accounts for revenue bookings – the corresponding target accounts in DATEV must have the AM function
  • Debtor account numbers using the Account field ON_DebtorNo or the Invoice field DebtorNo
Expected postings:
Debit Credit Posting Record Amount
Debtor Revenue Debtor → Revenue (gross) Gross amount (net + tax)
Resulting booking details:
Amount Debit/
Credit
Flag
Booking Account Contra Booking
Account
Is Gross Type
Gross amount (net + tax) H Revenue (gross) Debtor Revenue

For detailed configuration steps, see Enabling Gross Value Bookings.

Using Standard Accounts

With standard accounts (accounts without the AM function), JustOn Billing & Invoice Management creates separate booking details for the net revenue and the tax amount. This approach provides more control over the booking process and is required when using accounts that do not support automatic tax calculation.

Characteristics:
  • Separate postings: Debtor to Revenue (net) and Debtor to Tax
  • Tax codes (Steuerschlüssel) can be configured to control the tax posting
  • Works with any G/L account, regardless of the AM function setting
Required configuration:
Expected postings:
Debit Credit Posting Record Amount
Debtor Revenue Debtor → Revenue Net amount
Debtor Tax Debtor → Tax Tax amount
Resulting booking details:
Amount Debit/
Credit
Flag
Booking Account Contra Booking
Account
Is Gross Type
Net amount H Revenue Debtor Revenue
Tax amount H Tax Debtor Tax

For detailed configuration steps, see the bookkeeping data creation use cases, like Enabling Revenue Bookings for SaaS Businesses or Enabling Revenue Bookings With Monthly Revenue Recognition.

Choosing the Right Approach

The choice between automatic accounts and standard accounts depends on your DATEV configuration and business requirements:

Criterion Automatic Accounts Standard Accounts
Tax calculation Handled by DATEV Handled by JustOn
Postings per invoice line item One (gross) Two (net + tax)
Target G/L account requirement AM function required Any account
Tax code configuration Not required Required
Complexity Lower Higher
Flexibility Lower Higher
Recommendations:
  • Use automatic accounts if your DATEV chart of accounts is configured with AM function accounts and you prefer a simpler setup with fewer postings.
  • Use standard accounts if you need more control over tax postings, work with multiple tax rates, or your chart of accounts does not include AM function accounts.
Booking data creation:
Data transfer:
Booking account configuration:
Use cases: