My GST detailed report in some of my entries the balance is xxxx out

Howdy, uservickiper. 

Thank you for reaching out to the Community. Let's double-check the entries if it's specified to the correct account. or it could be attach were "exclusive of tax" & "exempt (sales)." Once done modifying your entries. Let's run the report again to check if the balance still off.  

I encourage you to learn more about Exceptions by reviewing this helpful article: Sales tax exceptions.  

You can also read through this article about set up tax rate for transaction (Inclusive / Exclusive of GST). 

Please let me know if you have other questions. I'm here to help. Stay safe!