I'll point you out in the right direction, Marsella.
You'll want to exclude your imported transactions and re-import them. Then, ensure to update the date of your transactions before importing it. I'd be glad to guide you how.
- Log in to your QuickBooks Self-Employed (QBSE) account.
- Go to the Transactions menu and select the transactions you want to exclude.
- Highlight the exclude icon then click Apply.

- Hover to the Add transaction button and click Import from the drop-down.
- Select Import older transactions for the account you want to add transactions to.
- Click Browse and find the file you downloaded from your bank.
- Select the file and click Open to start the import.
- Review the date, column headers, and data.
- Then click Continue to complete the import.
You can also see this article link for more details: Add older transactions to QuickBooks Self-Employed.
Once you're done, you'll want to categorize your transactions on the correct line of your Schedule C for accurate tracking. You can also work with your account for additional guidance and to ensure your books are properly recorded.
If you're not affiliated with one, you can visit our ProAdvisor page and look for one from there.
I'm down if you have other follow-up questions about importing transactions in QBSE. Just leave the details in your reply and I'll get back to you as soon as possible. Have a great weekend!