I'm ready to enter my estimated tax payments, and can't find the place to enter them. I only find PAYMENTS WITH EXTENSION

[SamiaI · Accepted solution]

You will enter estimated tax payments, under Estimates, in the Estimates and Other Taxes Paid section. 

You'll find this section in Deductions & Credits under either the Federal Taxes tab or the Personal tab, depending on the product. For a shortcut, type “estimates paid” in the search box and use the “Jump to” link.

Or, you can follow the detailed instructions here:

https://ttlc.intuit.com/replies/6510492