What version are you using? You can type sales taxes paid in the search box at the top of your return and click Find and it will give you a link to Jump To it.
OR
Enter Sales Tax under
Federal Taxes or Personal (Home&Business)
Deductions and Credits
Then scroll down to Estimates and Other Taxesl
Sales Tax- click the Start or Update button
You might see a screen saying
Sales Tax and Income Tax - Click Continue with Sales Tax
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