If you didn't file Form 8832 to be treated as a corporation when you set up your single member LLC, the IRS considers your LLC as a “Disregarded Entity”. For additional information, review the IRS website: Single member limited liability companies.
You’ll report your LLC business income and expenses on Schedule C as self-employment income or Schedule F if it’s for farming.
Refer to the TurboTax article: LLC Tax Filing Rules.