Hi there, italianbird811.

Thanks for stopping by the Community, the steps provided above are for QuickBooks Desktop. Unfortunately, at this time the ability to change the font size in QBO reports is unavailable. However, I can see how this would be beneficial, for that reason I'm going to reach out to our product engineers to see about implementing this in a future update. You can keep an eye on our blog, as that's where you can find information on changes and updates applied. The fastest way to get get changes like this made is to submit feedback. You can do so by clicking this link and following the steps there. If there's anything else I can do to help, feel free to post here anytime. Thanks and I hope you have a lovely day