In order to update this information within your HandiTax programs you will need to do the below:
Log in to HandiTax, then go to Options, then Front Cover Defaults.
Edit the address as required.
Click Save and Close.
The address will then reflect the changes made in your tax returns.
Note: If Use these settings for all is selected, only one user needs to make this change in your firm for it to reflect for all users. If this setting isn't selected, each user will need to make this change when logged in with their relevant username.