Small business please help tax question?

so im starting a cleaning company and i have no idea on how to do any of the taxes. do i pay every month or do i just pay once a year? do the offices i clean for give me the tax form or do i have to get it? im completely lost. please if someone could explain how to do taxes for a small business that would be great. its llc and im the only one if that helps..... Thank you so much :)