How can I share a Task list in Reminders?

Log into iCloud.com from your computer and set up the sharing from there.

I found the problem, for some reason after mav install my sidebar was hidden ( reguardless if i selected show/hide sidebar) i had to slide it open, Thx for reply

What are you talking about? I believe you posted this to the wrong thread.

First you can share Task List from Mac Reminder app or from icloud.com (Reminders app) (needs to login under your apple id).

Then you should login to icloud.com under apple id of acceptor for accepting inviting of your Task List.

That's all.