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Guide · Section 123 AO

Authorised recipient for the German tax office (Empfangsbevollmächtigter, § 123 AO)

By PortoDoc · Updated · 8 min read

Illustration: a letter from a German tax office drops into the PortoDoc letterbox at a Hamburg brick warehouse and travels on along a dotted line to a globe.

An authorised recipient receives the tax office's letters for you in Germany. If your company is based outside the EU and the EEA, the tax office can ask for one (§ 123 AO); marketplace sellers name one when they register. The letters are in German; many set a deadline.

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What is an authorised recipient?

An authorised recipient is a person or company in Germany that receives the tax office's letters for you. They need your power of attorney to do so. Your company remains the taxpayer: the authorised recipient does not file returns and does not pay tax for you.

The tax office can ask for an authorised recipient if your company has neither its seat nor its management in Germany, another EU country or an EEA country. That applies, for example, to businesses from the UK, the US, Turkey, Canada or Australia. You can also name one without being asked, for example right away in the VAT registration form.

What does § 123 AO say word for word?

  • Who: anyone without a residence, habitual abode, seat or management in Germany, the EU or the EEA (sentence 1).
  • When: when the tax office asks, within a reasonable period (sentence 1).
  • Where: the authorised recipient must be in Germany (sentence 1).
  • Warning first: the tax office must tell you what happens if you name nobody (sentence 4).

What happens if you name nobody?

If you name nobody after the request, sentence 2 applies: a letter to you counts as delivered one month after it was posted, and an electronic document on the fourth day after it was sent, unless it is established that it arrived later or not at all (sentence 3).

From that day on, deadlines run. You can only object to an assessment within one month after it was notified to you (§ 355 AO).

Estimates and surcharges can follow. If returns are missing, the tax office may estimate your tax (§ 162 AO). An unnoticed letter can therefore lead to an estimated assessment or a late filing surcharge (§ 152 AO).

German address, authorised recipient, fiscal representative or tax adviser?

Four terms, four different jobs. If you look for a German address for your VAT registration as a company outside the EU and the EEA, you will meet all four:

German address, authorised recipient, fiscal representative and tax adviser compared
TopicWhat it isReceives tax office letters for you?
German address (no legal basis of its own)An address in Germany where post can be delivered, for example with a mail serviceOnly if you have authorised the holder of the address and named them to the tax office
Authorised recipient (§ 123 AO)A person or company in Germany that you authorise to receive the tax office's letters for youYes, that is its job
Fiscal representative (§ 22a UStG)Represents you for VAT and takes over your VAT obligations; only for exclusively tax-exempt sales without input tax deductionAs your representative, but only in this narrow case
Tax adviser (§ 80 AO)Advises you, files returns and represents you towards the tax officeIf you also authorise them to receive letters; the registration form has its own box for this

An address is not yet an authorised recipient. What counts is the power of attorney and naming the recipient to the tax office.

It does not have to be a tax adviser: § 123 AO only requires that the authorised recipient is in Germany. A typical seller with stock in a German warehouse does not qualify for a fiscal representative.

How do you name an authorised recipient?

  1. 01Choose a person or company in Germany you trust with your tax office post.
  2. 02Sign a power of attorney that allows them to receive your letters from the tax office.
  3. 03Give the tax office their name and address: in the VAT registration form, section „Empfangsbevollmächtigte(r)“ (Authorised recipient), or later in a letter of your own. Enclose the power of attorney.
  4. 04From then on, the tax office writes to that address in Germany.

Which tax office is responsible depends on where your company is based (§ 1 UStZustV):

How PortoDoc solves it

  1. 01Address: You sign up and get your postal address in Ahrensburg near Hamburg with your personal PD number. It is a delivery address for letters, not a business, registered-office or imprint address.
  2. 02Naming us: You sign the power of attorney that includes § 123 AO. Under “For the tax office”, your account shows exactly what to enter. You name PortoDoc to the tax office yourself, for example in the VAT registration form.
  3. 03Scan: The tax office writes to us. We scan each letter and you get a notification. The letter appears in your account as a PDF.
  4. 04AI summary: Every plan includes an English AI translation; depending on your plan, you also get an AI summary: non-binding aids, not tax advice; the original letter counts.
  5. 05Your reply: You or your tax adviser reply to the tax office. We do not file returns, give tax advice or monitor deadlines.

PortoDoc is operated by Postuvio UG (haftungsbeschränkt), Am Tiergarten 10-12, 22926 Ahrensburg, Germany. Letters arrive in Ahrensburg (Schleswig-Holstein); data is stored on servers in the EU (Hetzner, Finland).

Common questions

Where do I find an authorised recipient, and who can be one?

Any person or company with an address in Germany that you trust with your post, for example a tax adviser or a mail service such as PortoDoc. § 123 AO only requires an authorised recipient in Germany.

Is a virtual address or a PO box in Germany enough?

An address alone is not enough. The tax office needs a person or company that you have authorised and named. Ask the provider of your address whether they take on this role; with PortoDoc, this works with the power of attorney under § 123 AO.

Do I need an expensive fiscal representative?

Usually not. Under § 22a UStG, a fiscal representative is only for businesses that make exclusively tax-exempt sales in Germany and cannot deduct input tax. A typical seller with stock in a German warehouse does not fall under this.

A German letter demands tax, but I hardly sell in Germany. Is it a scam?

It can be a real estimated assessment: if returns are missing, the tax office may estimate the tax (§ 162 AO). Compare sender, tax number and bank details with the details on the tax office's official website. You can object to an assessment within one month (§ 355 AO).

Do I have to wait until the tax office asks for one?

No. You can also name one yourself, for example right away in the VAT registration form. Marketplace sellers based outside the EU and the EEA must even do so with the registration (§ 22f (1) sentence 2 UStG).

Does the authorised recipient file my VAT returns?

No. An authorised recipient receives letters. Filing returns is a separate service, usually provided by a tax adviser or a VAT service provider.

Next step

GUIDES · 7 MIN READ

German VAT registration form for non-resident businesses: how to fill in the authorised recipient section →

Field by field through the authorised recipient section of the German VAT registration form: what to enter, typical mistakes and an example.

PortoDoc is your authorised recipient in Germany.

We receive your tax office letters in Ahrensburg near Hamburg, scan them and send you a notification; the address is not a business, registered-office or imprint address. Every plan includes an English AI translation; depending on your plan, you also get an AI summary: non-binding aids, not tax advice; the original letter counts. Starter costs €19.95 a month; if you pay monthly, you can cancel at the end of any month.

Sources and legal basis

Last checked on · How we check our information

This guide explains the rules in general terms. It is not tax advice. For your individual situation, ask a tax adviser.