When do I need to charge tax for US orders?
A CPA or tax specialist should be consulted in order for you to have a full understanding of your tax obligations.
General Information If you as a seller will pass an economic threshold for a state, you are required to collect and remit sales tax to that state. The thresholds describe the total revenue or numbers of transactions in a state. Read more about the thresholds for the different states here Sales Tax by State: Economic Nexus Laws - TaxJar
If you as a seller is located in the US, you are physically present in a home state, meaning you probably need to register for a sales tax permit in your own state. You may have a physical presence in several states if you have an office, inventory or an employee working in a second state.
Will I have to charge Sales tax as an international seller?