Can I delete a gst report to do it again

No, you cannot delete a filed GST/HST return in QBO. Once marked as filed in the Sales tax center, the return is locked to protect the audit trail.

However, when you need to correct figures, you can file an amended return directly with the CRA outside of QBO and then manually record any adjustments in QBO. You can use a journal entry or a tax adjustment in the Sales tax center.

Comment below if you have further concerns about managing your GST return.