The primary admin on the account is the only person who can add, remove, or edit the permissions of the other admins.  In order to add Salt & Main as the accountant on your Gusto account, follow these steps:

• Sign into Gusto as the Primary administrator.
• Head to the Settings section.
• Click the Permissions tab.
• Click Add or edit admins in the “Gusto Admins” card.
• Click Add new admin.
• Select the following options on the next screen:
  • Set our employment status as not an employee
  • Select Accountant from the drop down menu under “Who are they?”
  • Select the best option under the “What will they help you with?”
  • Enter the First and Last name of your account manager
  • Enter our email of Admin@SaltAndMainAccounting.com
  • Select Full Access under “Which roles will the admin need…?”
• Click Add Admin at the bottom.

And that’s it!  We will receive an email to finish setting things up on our end.

Reference: Gusto Help Center – Manage administrator permissions