Wondering the exact same thing. I even asked Square when I did my change in September, and they said go ahead and change the name and EIN, and I did NOT need to create a new account. Most places in the account still show the old EIN/name btw. So now I have received a 1099K with the old name, and the new EIN. I asked Square Help on Saturday (I was cold transferred 3 times in Chat), and they said I will not receive two 1099Ks, and to request a correction. I'm pretty frustrated that the original Help person did not explain any of this. My tax accountant said get an updated 1099K (in the old name) and start a new Square account. For you, it's one month, so it may not make much difference, but a quarter of my year is going to be screwed up now and reported under the old business. Square has been next to useless. Might be time to find a new payment processor who will actually support us.
