No.

transactions are cumulative, if you delete as an example last years banking entries – todays bank balance is wrong, reconciles are wrong, and the expenses or things you bought disappear

and there is no way to make a partial going forward file either, unless you cancel and start all over

Resolution for 'banking entries issue: 'Can I delete certain years out of quickbooks online?' available: Yes.

The banking entries 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 banking entries issue yourself by looking for a resolution described in the article. If it is a complex banking entries issue or you are unable to solve the issue, you may contact us by clicking here or by using other banking entries support options.

For more information about resolving issues related to banking entries in Quickbooks/QBO or to get support for the issue 'Can I delete certain years out of quickbooks online?', click the link below: