I am a self employed online model generating roughly $4000 (it varies) a month in profit. I have already registered to pay federal taxes and paid the overdue and current estimated quarterly taxes through Quickbooks.
I would like to know, what other taxes am I liable for and how do I register or pay for them? I live in Allegheny County, Pittsburgh, PA. Please can somebody help me? My income is exclusively online so does City tax even apply to me? Is all that I have left to pay, State taxes? What about earned income tax, or is that paid through federal tax?
Please can someone give a simple explanation of what taxes I am liable for as an online model where I live, I'm having trouble finding out.