
VAT (UID) and Tax Registration for an Austrian GmbH
The notice to the tax office, your GmbH's tax number and, where it qualifies, its UID.
- Notice within one month
- UID not automatic
- Finanzamt Österreich
The tax number and the UID are both issued by Finanzamt Österreich, the Austrian tax office.
What this service covers
When a GmbH starts business, Finanzamt Österreich (the Austrian tax office) must be notified of the start of business activity and the business location within one month (Business Service Portal). An informal written notice suffices. We prepare and file it with the request for the company's tax number (Steuernummer) and, where EU trade is planned, its VAT identification number (UID-Nummer).
This service covers the registration filings, not tax advice. Tax advice and tax returns are reserved in Austria to licensed tax advisers under the WTBG 2017, so a licensed Steuerberater handles the company's ongoing tax matters. What the company pays afterwards is set out in how an Austrian GmbH is taxed.
What's included
The notice and the tax number
The notice of the GmbH's start of business activity and business location to Finanzamt Österreich, with form Verf 15, the tax-registration questionnaire, for its Steuernummer.
The UID application, where the GmbH qualifies
Where EU trade is planned, the request for the UID-Nummer, with a description of the business the company carries on or is about to start.
The VAT rates, as the statute sets them
The rates in § 10 UStG 1994 are set out below for reference. Which rate your supplies carry, and the returns that follow, is work for a licensed Steuerberater.
Who it is for
Tax registration is one of the GmbH formation steps. Still to form the company? You can register a GmbH in Austria with us first. Bought one ready-made? See what a Vorrats-GmbH does and does not include.
A GmbH starting business
Any GmbH about to start business activity: the start and the business location go to Finanzamt Österreich within one month, with the request for a tax number.
A GmbH planning EU trade
A GmbH that plans trade within the EU and is trading or credibly about to. The tax office issues a UID-Nummer to an entrepreneur, not to every registered company.
How registration works
No statutory processing time is published for these steps, so none is given here.
Notify the tax office
Within one month of the start of business activity, Finanzamt Österreich is told of that start and of the business location. An informal written notice suffices (Business Service Portal).
File form Verf 15 for the tax number and UID
A GmbH files form Verf 15, the tax-registration questionnaire. When the tax number is assigned, the UID is issued ex officio; otherwise form U 15 applies (Business Service Portal).
Hand ongoing tax matters to a licensed adviser
Which of the rates in § 10 UStG 1994 your supplies carry, the returns and any tax advice are handled by a licensed Steuerberater; the WTBG 2017 reserves that work to the profession.
Tax registration of a GmbH, in order
- Notify the tax officeStart of business activity and business location to Finanzamt Österreich; an informal written notice sufficesWithin one month
- File form Verf 15The tax-registration questionnaire: the tax number is assigned and the UID issued ex officio, to an entrepreneur only; otherwise form U 15
- Licensed SteuerberaterOngoing tax matters, returns and tax advice, reserved to the profession by the WTBG 2017
Not sure how this applies to your GmbH?
Send us your question before you commit to anything.
Documents you will need
What the notice and the UID request draw on.
- The date the GmbH starts, or will start, its business activity
- The GmbH's business location
- A written notice to Finanzamt Österreich; an informal one suffices
- Form Verf 15, the tax-registration questionnaire for an AG or GmbH
- Form U 15, where the UID is applied for separately
- A description of the business activity, for the UID request

Austrian VAT rates
The rates § 10 UStG 1994 sets, for reference; which one applies to a given supply is a question for a licensed Steuerberater.
| Rate | Applies to |
|---|---|
| 20% (§ 10 Abs. 1 UStG 1994) | Standard rate for taxable supplies |
| 13% (§ 10 Abs. 3 UStG 1994) | The categories listed in § 10 Abs. 3 |
| 10% (§ 10 Abs. 2 UStG 1994) | The goods in Annex 1, restaurant supplies of those goods, residential letting, hotel accommodation and camping |
| 4.9% (§ 10 Abs. 1a UStG 1994) | Only the goods listed in Annex 3 (Anlage 3); for those goods it takes precedence over the 10% and 13% rates |
Source: § 10 UStG 1994, consolidated text in the Austrian Federal Legal Information System (RIS). Law as at 28 September 2026.
VAT rates in § 10 UStG 1994
For the goods in Annex 3, the 4.9% rate takes precedence over the 10% and 13% rates.
Problems we solve
"I have a Vienna address, but the tax office won't give me a UID"
An address alone is not what the tax office looks at. It issues a UID to a business that is trading or credibly about to, so the request describes that activity.
"The GmbH is registered, so where is its UID?"
A UID is not automatic on incorporation. Published case law confirms it is refused where the applicant is not an entrepreneur (Findok, Federal Ministry of Finance), so it is requested separately.
Ready to register your GmbH with the tax office?
Tell us what the company does and whether it will trade within the EU.
Why work with us
Prepared and reviewed by the gmbh-austria.com team. Updated 28 September 2026.
From our practice. Founders abroad often expect the UID to arrive with the register entry or with a Vienna address. What decides the request is the description of the business: it has to show a company that trades or is about to.
Related services
FAQ
I have a Vienna address, but the tax office will not give me a UID. Why?
A Vienna address alone does not carry a UID request. The tax office issues a UID-Nummer to a business that is trading or credibly about to, and published case law confirms the refusal of a UID where the applicant is not an entrepreneur. The request therefore describes the business the GmbH carries on or is about to start.
Is a UID issued automatically when the GmbH is registered?
No. The Steuernummer and the UID-Nummer are requested from Finanzamt Österreich, and the UID can be requested with the first notice where EU trade is planned. Published case law confirms that a UID is refused where the applicant is not an entrepreneur, so the registration of the company alone does not produce one.
Do you give tax advice or prepare VAT returns?
No. This service covers the registration filings: the notice to the tax office, the tax number request and, where it applies, the UID request. Tax advice and tax returns are reserved in Austria to licensed tax advisers under the WTBG 2017, so a licensed Steuerberater handles the company's ongoing tax matters.
Can the tax number and the UID be requested together?
Yes. According to the Business Service Portal, the UID can be requested with the first notice to Finanzamt Österreich, the one that reports the start of business activity and the business location and asks for the tax number. The UID is requested where EU trade is planned, and it is refused where the applicant is not an entrepreneur.
Is there a deadline for registering with the tax office?
Yes. The start of business activity and the business location must be notified to Finanzamt Österreich within one month, according to the Business Service Portal's GmbH formation roadmap. The tax number, and the UID where EU trade is planned, can be requested in that same notice, so one filing covers the registration.
Which form does a GmbH file for its tax number and UID?
Form Verf 15, the tax-registration questionnaire for an AG or a GmbH; Verf 16 is for other companies and Verf 24 for natural persons. The UID is issued ex officio when the questionnaire is filed and the tax number is assigned. Form U 15 is the separate UID application where the questionnaire route does not apply.
How long does tax registration take?
No statutory processing time is published for the tax number or the UID, so we do not quote one. What is fixed is the notifying side: the start of business activity and the business location go to Finanzamt Österreich within one month. A UID request is decided on whether the applicant is an entrepreneur.
What is a GmbH in Austria?
A GmbH (Gesellschaft mit beschränkter Haftung) is the Austrian limited liability company; the GmbH explained covers the form itself. For tax registration, the company notifies Finanzamt Österreich of its start of business activity and business location, and the tax office issues its tax number and, where it qualifies, its UID.
How much tax will I pay in Austria?
That depends on the company's own figures, and working it out for a specific company is tax advice, reserved to a licensed Steuerberater. The VAT rates are fixed by § 10 UStG 1994: 20% standard, 13% and 10% reduced, and 4.9% for the goods in Annex 3. The company's other taxes are covered in our tax guide.
How do I find a tax ID number in Austria?
A GmbH's tax number (Steuernummer) is issued by Finanzamt Österreich on the request made with the notice of the start of business activity. The VAT identification number (UID-Nummer) is issued by the same office on request, where EU trade is planned, and only to an applicant who is an entrepreneur.
What is the VAT rate in Austria?
The standard rate is 20% (§ 10 Abs. 1 UStG 1994). Reduced rates are 10% for the goods in Annex 1, restaurant supplies of those goods, residential letting, hotel accommodation and camping (Abs. 2), and 13% for the categories in Abs. 3. A 4.9% rate applies only to the goods listed in Annex 3 (Abs. 1a).
What does the 4.9% rate cover?
Only the supply and import of the goods listed in Annex 3 (Anlage 3) of the UStG 1994. Under § 10 Abs. 1a it takes precedence over the 10% and 13% rates for those goods, and it reaches nothing else. Whether a particular product falls within Annex 3 is a question for a licensed Steuerberater.
Want your GmbH registered with the tax office?
Send the start date, the business location and the planned activity, or write to info@gmbh-austria.com.