Thank you for posting here in the Community, @Rodora. I’ve come to provide some insights regarding this concern with your bank register in QuickBooks Online
To get around this query, you'll want to double-check the reporting period of your report. This way, you'll be able to review and locate those transactions that are causing the amount to be different in the accrual accounting method in your report.
Please see this sample screenshot for reference:
Moreover, it would be best to consult your
accountant for further guidance about the best process to sort this out to ensure that your books are accurate and to avoid messing up the data.
In addition, you can find out more about managing reports in QBDT through the following articles:
Feel free to get back to me here if you have further questions about managing your reports in QBDT. I'm very eager to help. Take care!