You can claim either Income Tax withheld on your earned income, or a Sales Tax deduction based on your family size and income, whichever is greater.
If you had no State Tax withheld on wages (or a small amount), TurboTax will give you this table amount if that amount is larger.
If you had purchased a large item, you can add that amount of tax to the table amount.
Here's more info:
https://ttlc.intuit.com/replies/3302003
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