When you're already using our QuickBooks Self-Employed (QBSE) software by 2018, you can find your self-employment tax data in the Taxes menu. This section lets you view your annual and quarterly taxes. It also shows you the Total Schedule C Deductions and its breakdown.
Go to the Taxes menu.
In the Taxes section above, click the drop-down arrow.
Click the Annual tab to view annual taxes.
Choose the Quarterly tab to show your quarterly taxes.
I've attached screenshots below for your reference.
The Taxes menu lets you perform other tasks such as Email tax details, Download tax details, and Download tax summary.
We've collected the most commonly asked questions about taxes and forms in QuickBooks Self-Employed. You can refer to this article to know more: Manage taxes and forms with QuickBooks Self-Employed FAQ. It also contains details on how you can share your reports with your accountant.
Please let me know if you have other concerns. I'm just around to help.