If two or more people operate a business together, they are a partnership, whether or not they form an LLC. The partnership must file a form 1065 partnership tax return. This is due March 15 (not April 15) and the late penalty is $200 per month per partner. The partnership return will issue a K-1 statement to each partner, that is included on the partner's tax return along with any other income, deductions, credits and dependents. The K-1 passes through the partner's share of income and expenses to their personal tax return. To prepare a 1065 with turbotax, you need Turbotax Business, which is a separate program only available as a CD or download to install on your own PC. There is no Mac or online version.
(Alternatively, your daughter could be a W-2 employee of your business, or she could be a 1099-NEC subcontractor. That would be two other ways of recognizing her participation without making her an equity partner. If she is a partner, you have to go the route of the 1065.)
