Do I have to pay income tax as a Non-US Resident?

hi dears All,

Do I have to pay income tax as a non-US resident and owner of a US corporation or LLC?
Since I have no employees in the U.S., what taxes will my company have to pay? How do I make this payment?
If I decide to employ? What is the procedure to follow (for the state of Florida for example)? What documentation is required for the payment of all related taxes?

Thank you for your answers and insights.