How do you increase the font size on the display?

Hello bill-hood,

Welcome to the Community. QuickBooks Online is a versatile that's designed to help you streamline your accounting. I'll be glad to assist you so you're on the right track with achieving your QuickBooks goals. 

The ability to increase the display font in QuickBooks isn't available. The good news is you can increase the font on your computer or on the browser you're using. You can even increase the font size on a mobile device. Depending on which device/platform you're using, I encourage you to google the steps on how to increase the font size on your device/platform. You're more than welcome to send feedback to our engineers so this features can be included in the future QuickBooks update. To send feedback, click on the Gear icon and look for Feedback. 

Let me know if this info helps. I'll be on standby in case you need anything else. Otherwise, I wish you a great rest of the day.