Thanks for joining us here, brianjinsf.
Imported transaction in QuicckBooks Self-Employed is by defaulted categorized under Cash account. You can read through this article to learn more about Categories in QuickBooks Self-Employed.
Also, here's a guide about manually adding transactions in QBSE: Manually add transactions in QuickBooks Self-Employed.
For additional reference, you may find this article helpful in the future: QBSE Overview
If there's anything else you need, just drop me a comment. I'm still here to offer more help.
