Selling my house and do I need to report it

I live in South Carolina. I will selling my house (I live in it.) I have lived in this house my whole life but bought it from my mom 4 years ago. I understand the federal tax laws when it comes to selling my house and reporting. But when it comes to the rules of reporting it in SC I am confused. I know I will have a gain on my house as I bought the house for a $1. But still confused on where I will owe taxes on it at the state level or not.