I do not understand what you are saying. I will explain
"In an app on your Mac, choose Format > Show Fonts or Format > Font > Show Fonts."
What is "an app on your Mac?" Do you mean the Turbo Tax Program purchased on Disc? Do you mean some other random program ("app?") on my Mac? There is no "Format" drop-down menu either in the Turbotax program or in Safari. The topics are : "File Edit View Forms Easy Step Flags Window Help." After looking at each subtopic 4 ties, I am able to say with confidence that there is no "Font" option.
Secondly, you suggest "Make all content larger: Choose Safari>Settings for this website. . . ." Safari does not work for this purpose because Turbo Tax is neither open nor operating in Safari. Turbotax is its own program. No Safari involved.
Are you sure you are conversant with how the Turbotax Disc works in IOS, which is the operating system used in Apple computers. Neither of your proposed solutions is possible on this computer. I'm still looking at the -8 pt. type.
