[header] How to report sales tax [title] Contact your state's tax authority. [step] Sales taxes are collected by your state's department of revenue. Search online for the department's website, which typically will have information on how to register for a sales tax permit. 
[substeps] You may also be able to drop by a local office if you want to speak to someone in person about registering your business to collect sales tax. You can also get help from the small business association.