https://ttlc.intuit.com/questions/1900791-how-do-i-find-my-local-sales-tax
https://ttlc.intuit.com/questions/2566624-how-much-sales-tax-did-i-pay-last-year
Sales tax is an itemized deduction. Unless you have enough other itemized deductions to exceed your standard deduction the sales tax will have no effect on your tax due or refund.