<prompt> Human: State sales tax is deductible instead of state income tax, and this is a benefit when the sales tax is higher than the state income tax. An easy way to estimate your sales tax is to download your credit card annual statements. You can remove non-taxable spend, like groceries, and then take the remaining number to backwards calculate what portion goes to sales tax. If this sales tax estimate is greater than your state income tax, you now have a higher deductible! In states without an income tax, you can use this sales tax estimation on your return or the IRS has an estimator tool.  <response>: This only helps if you itemize deductions. 