Why Austrian companies underestimate German VAT
Shared language is the trap. Austrian businesses can speak directly to German customers, ship cross-border under EU rules, and read all the German tax forms without a translator. So the German VAT obligation often goes unnoticed until something concrete triggers it — usually Amazon FBA inventory or a 3PL contract. Three points to be clear about:
- Austria and Germany are separate VAT jurisdictions. Your Austrian UID-Nummer (ATU + 8 digits) is valid in Austria. For German VAT supplies you need a German Steuernummer plus a German USt-IdNr. (DE + 9 digits). They are different registrations issued by different tax authorities.
- OSS does not cover German-stored inventory. If you place stock in a German warehouse — Amazon FBA, 3PL, consignment — local German registration is mandatory regardless of whether you also use OSS for direct AT-to-DE B2C shipping.
- The Austrian Steuerberater rarely files German UStVA. Cross-jurisdictional tax practice is rare. Most Austrian Steuerberater partner with a German firm or hand off the German leg entirely. Vaytax takes only that German leg.
Typical triggers for Austrian companies
- Amazon FBA on .de. Whether you stay national to .at or join Pan-EU, Amazon will allocate inventory to German warehouses. Registration must be in place before stock arrives.
- German 3PL or fulfilment partner. Using a German warehouse for faster delivery to DACH customers triggers immediate registration.
- B2B German enterprise contract requiring DE USt-IdNr. Some German buyers reject foreign VAT IDs on invoices to keep their own bookkeeping clean. Having a DE-prefixed USt-IdNr. removes friction.
- Cross-border B2C past €10k EU-wide. Once you cross the OSS threshold, you need OSS via FinanzOnline AND — if you have any German-located inventory — local German registration.
OSS or local German registration?
| Austrian seller setup | OSS (via FinanzOnline)? | Local DE registration? |
|---|---|---|
| Ship from AT only, direct B2C to DE | Yes (if >€10k EU-wide) | No |
| Amazon FBA AT only | Yes | No |
| Amazon Pan-EU FBA (inventory in DE) | For AT-sourced sales | Yes (for DE-sourced sales) |
| German 3PL or warehouse | Where applicable | Yes |
| B2B services with German place of supply | No | Often required |
Reverse-charge nuance: Most cross-border B2B services between Austrian and German businesses are governed by §13b UStG reverse charge — the German customer accounts for VAT, no German registration required for the Austrian supplier. Exceptions exist (real-estate-related services, certain digital services, etc.), so confirm before assuming reverse charge applies.
Finanzamt München: the office for Austrian companies
Austrian companies registering for German VAT are routed to Finanzamt München under the Bundeszentralamt für Steuern (BZSt) routing per §20a UStG. Munich is the natural assignment given Bavaria's role as Germany's primary trade gateway with Austria.
What Finanzamt München requires:
- Firmenbuchauszug (Austrian company register extract), typically dated within 3 months
- UID-Nummer (ATU + 8 digits) for VIES verification
- Statuten / Gesellschaftsvertrag if requested
- Passport copies of all Geschäftsführer / handlungsbefugte Personen
- Completed Fragebogen zur steuerlichen Erfassung — straightforward for German-speaking applicants but we still file it for you
- SEPA direct debit mandate from your Austrian business bank
As EU member-state documents, Austrian corporate records are accepted without Apostille or sworn translation.
Monthly filing for Austrian-DE sellers
- You: Enter German-sourced sales totals into the Vaytax dashboard. Austrian-sourced sales continue with your Austrian Steuerberater + OSS via FinanzOnline.
- We: Import into DATEV, generate the USt-Voranmeldung, file via ELSTER.
- Finanzamt: SEPA-debits your Austrian EUR account for VAT owed.
- You: Filing confirmation in dashboard. Austrian UVA (Umsatzsteuervoranmeldung in Austria) and OSS continue through your Austrian Steuerberater.
First two years: monthly filing is mandatory. From year three: quarterly becomes possible if annual VAT owed is under €7,500. Dauerfristverlängerung (permanent filing extension) gives you an extra month per deadline.