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After forming the LLC, we had to get an EIN to open a checking account for the LLC. When the IRS sent the EIN, there was a note saying, "Based on the information received from you or your representative, you must file the following form(s) by the date(s) shown:   Form 1065    03/15/2022"

Is that form part of the TurboTax business filing, and are business taxes normally due in March instead of April? Thanks.