It is not unusual for the QB bank balance to be different than the statement balance – generally speaking

the statement is a snapshot as of a certain date, any transactions entered after that date in QB will not show on the statement but do affect the current bank balance.  Similarly, […]

Resolution for 'bank filter issue: 'how can my bank balance be off if the statement reconciled correctly' available: Yes.

The bank filter issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the bank filter issue yourself by looking for a resolution described in the article. If it is a complex bank filter issue or you are unable to solve the issue, you may contact us by clicking here or by using other bank filter support options.

For more information about resolving issues related to bank filter in Quickbooks/QBO or to get support for the issue 'how can my bank balance be off if the statement reconciled correctly', click the link below: