Sales tax

How does sales tax affect me?
How is sales tax calculated?
When do I need to charge tax for US orders?
Which states does Printful charge sales tax in?
In which states are Printful products exempt from sales tax?
What are sales tax holidays and how do they work?
What is a resale certificate?
How do I submit a resale certificate or tax exemption certificate?
How do I submit a tax exemption certificate for my non-profit organization?
What are alternative documents?
What do the different product categories on a Resale certificate mean?
Do international sellers have to charge Sales Tax?
How do taxes and customs work for orders in Mexico?
What do I need to know about sales tax in Canada?
What is different about tax in California?