I'd be pleased to help you recover your missing transactions in QuickBooks Self-Employed, 660car.
You can manually enter the missing transactions from June to September in QuickBooks Self-Employed or download them via Excel/CSV file. Here's how:
- Click the Profile ⚙ icon and choose Imports.
- Select Import transactions.
- Follow the onscreen steps to upload the CSV file.
- Hit Import.
For the detailed steps and instructions, check out this article: Add older transactions to QuickBooks Self-Employed. Once imported, I recommend editing, assigning, and categorizing your transactions. Doing so will help you ensure the accuracy of your financial records.
Additionally, you can visit the following write-up regarding how Schedule C categories show up on your financial reports: Schedule C and expense categories in QuickBooks Self-Employed.
Let me know the result of this troubleshooting in the comment below. I need to make sure you're able to retrieve your missing transactions. I'll be around to help if you need additional assistance.