I have registered the business as not for GST but still error say that tax code cannot be empty when I set opening balances for accounts payable.

Hi, jliu0330 

Thanks for your post, and welcome to the MYOB Community Forum.

If the business is not registered for GST, you may still need to indicate a tax code. To do this, kindly go to Accounting >  Chart of Accounts > Select the account name and then select the tax code. Once done, hit Save. It should allow you to save when you set an opening balance for accounts payable.

Please let us know if you require any further assistance with this. We are happy to assist.

Best regards,

Doreen