Can I search/sort by password age?

Thanks. That option does sound feasible. Ideally a few extras would make it super useful like turning it on/off globally or per vault, setting a default time frame like 1 year out globally or per vault, allowing individual entries that override the default (so maybe finance-based passwords are expiring every 3 months versus everything else 1 year, or my work password every 30 days), and having the expiration reset automatically per password change.

Right now I do not have a good method in 1Password as I am new to the tool. But the other password managers I've used also don't have a good method. Historically I've maintain a small python script with sqlite DB that I import a vault export into. If the entry name does not exist, it gets added along with a default last password changed date, and a default expiration date in days, otherwise it is ignored and skipped. Only those 3 columns are in that database. Then a small script just shows me the expired entries (if change date + expiration days < today type of filter), lets me reset the changed date to today, and will let me change the default days. Fairly easy but manual and external to the password manager (that I am/was currently using, not 1Password) and has the risk of the vault exports I need to do just to get the entry name also seems to export the passwords.

(I assume I could have done all that in a spreadsheet easier now that I've typed this all out. HA!)

thanks again for the quick response and submitting the idea!