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OSS Account Mapping

One-Stop Shop Tax Compliance

The Challenge

Since July 2021, online retailers selling to consumers in other EU countries must charge the VAT of the respective destination country and report it through the One-Stop Shop (OSS) procedure. For a retailer with sales in 18 EU countries, this meant 18 different VAT rates, separate general ledger accounts per country and quarterly OSS returns.

Manual mapping was error-prone and extremely time-consuming.

Our Solution

We implemented an automatic OSS account mapping:

Smart Country Detection

Automatic assignment of every transaction to the correct EU country:

  • Detection via the end customer's delivery address
  • Distinction between B2B (reverse charge) and B2C (OSS)
  • Special rules for digital services
  • Threshold monitoring (€10,000 de minimis threshold)

Account Mapping

Automatic posting to the correct general ledger accounts:

  • Separate revenue account and tax account per EU country
  • Support for reduced VAT rates (e.g. 5.5% in France for certain goods)
  • Automatic adjustment when VAT rates change
  • DATEV-compatible account numbers

OSS Return

Automated preparation of the quarterly return:

  • Aggregation of all OSS-relevant sales per country
  • Export in a format compatible with the BZSt (German Federal Central Tax Office)
  • Reconciliation with financial accounting
  • Archiving of the return data

The Result

  • 18 EU countries taxed correctly and fully automatically
  • OSS return in 15 minutes instead of 2 days
  • Zero errors in the first 4 quarters
  • DATEV export at the push of a button

Highlights

✓ EU One-Stop Shop (OSS) rules
✓ Automatic country assignment
✓ 27 configurable EU VAT rates
✓ Account mapping per country and tax type
✓ Quarterly OSS return
✓ DATEV export of OSS postings