You can upload your logo to the system in the profile area of the accountant portal, there are two logo types that can be uploaded.
"Company Logo" which will appear on the front page of the report and in the client portal, and "Mini Logo" which is used in the header of each report page.
Maximum Logo Size: 2,500px
Scaled Logo Size (Portal): 1,075px X 1,075px
File Type: PNG or JPEG