Where do I file my small business taxes

[MichaelL1]

single member LLC?  Sch C? or separate 1120 return?

[viktoriyab11]

Independent contractor, freelance, consultant, etc  - How do I report income from self-employment?

Single-member LLC (sole proprietorship)
If you're a sole proprietor who formed an LLC with just yourself as a member, you'll file Schedule C with your Form 1040 and include all LLC income and deductions there.   What Is a Schedule C IRS form?
TurboTax Home & Business  has everything you need to file your personal return along with your Schedule C. It's available as a CD/Download for Windows and Mac or Online as TurboTax Self Employed.

Multi-member LLC (partnership)
A multi-member LLC will need to use TurboTax Business to prepare and file Form 1065 (U.S. Return of Partnership Income).
TurboTax Business (Windows only) contains everything you'll need to prepare Form 1065 and the associated Schedule K-1 forms.
It also lets you prepare W-2 and 1099 forms for employees and contractors that work for your LLC.

LLC Tax Filing Rules https://turbotax.intuit.com/tax-tips/small-business-taxes/llc-tax-filing-rules/L39E29kPR