Gross receipts tax is entered on Schedule C, line 23, Taxes and licenses.
We'll automatically complete Schedule C or C-EZ when you set up your self-employment work in TurboTax or when you enter what the IRS considers self-employment income (it’s often reported on a 1099-MISC).
Schedules C and C-EZ are supported in TurboTax Self-Employed (both online and in the mobile app) and in all personal 1040 versions of the TurboTax CD/Download software.
To set up your business:
If your return only requires Schedule C-EZ, we'll generate Schedule C for calculation purposes. It won't be filed with your return.
Source: TurboTax FAQ
[Edited 2-12-2020|12:30 P.M. PST]