Sales tax has to be paid based on when it actually got paid by the customer. There is no report that shows the sales tax collected in a given period regardless when the job/invoice was created, scheduled or completed etc. The sales report does not show "collected amounts." The sales tax report, if you check off paid only, can show you only paid amounts, but only for jobs "created, scheduled or closed" in the selected period, and not if it's a payment for something a year old. The easiest will be putting it by the payment report, which is cash basis, where you just have to add a column "sales tax paid." This should give you sales tax actually paid in the selected period.