Thank you for posting here in the Community, @hello72.
I'd be glad to give you insights on when the tax payment flow in your payment history log.
The payments you've created in QuickBooks will show in your Quarterly Taxes page depending on the bank's time frame. These transactions may immediately show or can take up to 2-3 days to reflect in QuickBooks Self Employed.
For additional information about the tax payments, please visit this article: Pay Federal Estimated Quarterly Taxes.
Please visit this article: Estimated taxes. This link will explain to you on what types o taxes that QuickBooks don't calculate.
Feel free to post any other concerns, hello72. I'm always here to help