An AI suggestion. See if it succeeds...
"Yes — on Mac, Express Accounts appears to follow macOS date/region settings for displayed dates, so changing the system date format is the most likely way to get the Journal to show 05-28-26 instead of 2026-05-28.
What to change
Go to System Settings > General > Language & Region, then adjust the Date format to a month-day-year style, or choose a region that uses that format by default. macOS says this setting can affect how apps display dates, times, numbers, and currencies.
Important caveat
NCH’s Mac help for Express Accounts shows that some fields and report inputs still require dates entered in YYYY-MM-DD format, so the app may use ISO style in certain places even if the display changes elsewhere. In other words, you may be able to change the display format, but not every date field inside the app may honor it.
Practical test
Try changing macOS to a U.S.-style region or custom date format, then quit and reopen Express Accounts to see whether the Journal display updates. If the Journal still stays on ISO format, that usually means the field is hard-coded by the app and can’t be changed separately."