Where do we report sales tax collected and paid to state on retail/business sales??

The sales tax I collected from the customers is already included in my 1099-K, so it looks like the income I earned. I know I should deduct it somewhere because I already paid it back to the state. So in this situation, where should I enter collected sales tax from retail/business sales?

Under Tax and Licenses? (If so, should I word it as "sales tax paid" or else?)

or 

Misc expenses?

Thanks!