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Bank account or EMI that lets a freelancer / sole proprietor use a business name (trade name) instead of personal name?

Actually, there is one more option which works if you are German. There was this guy Gregor Janecke. You can see his bank cards here:
https://www.deutscheskonto.org/de/bank/meine-privaten-konten/
He was such a good bank client that he decided to use Richard Banks as Künstlername (alias) as he explains here:
https://www.deutscheskonto.org/de/fan/markenname/
And see, he now has cards with his new name:
https://www.deutscheskonto.org/de/dauerauftrag-dkb-visa-card/

In case you are German, you may want to get a new passport with Bella Italia or Fleus Fabuleux or whatever as Künstlername.

@JohnnyDoe it is not possible to use Deutsche Telekom as alias.
https://praxistipps.focus.de/kuenstlernamen-eintragen-lassen-das-sind-die-voraussetzungen_162525
 
Google says you may be able to register a company name even as a sole proprietorship, it's called "Eingetragenen Kaufmann":

https://lawyersgermany.com/setting-up-a-sole-trader-in-germany/

Maybe you can use this? Not sure if there are any tax implications, you'll want to check with your accountant.
Yes, exactly this! You are able to use any business name. Notice that there is a difference between sole proprietorship without a registration in the official business registry, and being a "Eingetragener Kaufmann (e.K.)", which needs a notary appointment in order to be listed in the official business registry.
Seems like the perfect solution for you.

Please notice that all other options will be limited in the upcoming months because of mandatory SEPA Name checks on outgoing transfers. Your clients will then see the name of the bank account you are using, so just using a different name on the invoice wont be enough.
 
Please notice that all other options will be limited in the upcoming months because of mandatory SEPA Name checks on outgoing transfers. Your clients will then see the name of the bank account you are using, so just using a different name on the invoice wont be enough.

Does that also affect the Dutch EMI account another user recommended in this thread? They allow to use an alias. And the new SEPA name check seems to be only checking against the name an account is registered to, if it is matching. And if that Dutch EMI ("Yoursafe") opens and operates your account under the chosen alias name, a transfer made to the alias name's account should pass the new name check, as it would match ..
 
Does that also affect the Dutch EMI account another user recommended in this thread? They allow to use an alias. And the new SEPA name check seems to be only checking against the name an account is registered to, if it is matching. And if that Dutch EMI ("Yoursafe") opens and operates your account under the chosen alias name, a transfer made to the alias name's account should pass the new name check, as it would match ..
That one and the e.K. one works.

If you want my personal advice, leave Germany and be happy elsewhere.
 
Normally these things are possible as long as there is some documents supporting you using that business name. A sole proprietor also registers as such and in many countries around the world you can then add a name. On your bank statements and on the statements of the other parties it most often shows up as "John Smith doing business under XYZ.com" or something similar.