Lawyer profile
Frank Diehl
Certified specialist in tax law (Fachanwalt für Steuerrecht), Cologne
- Checked in the official register of the German Federal Bar (BRAK) on 12 October 2026
More Tax law specialists in Cologne
- Dr. Patrizia Antoni
- Dr. iur. Eric Hoeveler
- Sven Schützler
- Dr. jur. Ingo Heuel
- Kai Martin Nickel
- Jan Niklas Rehorst
At a glance
- Languages
- English
- Focus areas
- Stock corporation law (Aktienrecht), Company law (Gesellschaftsrecht), Commercial law (Handelsrecht), Tax law (Steuerrecht)
Sources: Deutsche Anwaltauskunft des Deutschen Anwaltvereins, retrieved on 12 October 2026. Focus areas and opening hours are the lawyer's or firm's own words. Focus areas from the directories' fixed lists have an English label with the German term in brackets; all others stay in German.
Location of the firm
Details from the official lawyer register
- Name
- Frank Diehl
- Professional title
- Lawyer (Rechtsanwalt)
- Specialist titles
- Certified specialist in tax law (Fachanwalt für Steuerrecht)
- Regional bar association
- Köln
- Admitted since
- 28 February 1996
- Law firm
- Frank Diehl
- Firm address
- Dürener Str. 295-297, 50935 Köln
- Further office
- Französische Str. 47, 10117 Berlin
- Phone
- 0221-4743305
- Mobile phone
- 0172-2635642
- Fax
- 0221-4743499
- RADIEHL@KANZLEI-DIEHL.DE
- Identifier in the special electronic lawyer mailbox (beA)
- DE.BRAK.6afd7cbc-addf-49e0-8918-a062335fa433.dd99
Source: Official lawyer register of the German Federal Bar under section 31 of the Federal Lawyers' Act (BRAO). The register is kept in German. We show names and addresses as the register gives them and add an English description to German professional titles.
Is something wrong? Request a correction. We change details from the register only when they change there.
Not sure who fits your case?
Describe your case in English. Our assistant asks a few questions, writes a German summary for the lawyer and shows matching lawyers.