Use reminders from your Internet accounts on Mac
If you keep your reminders in Internet accounts — for example, iCloud, Exchange, Yahoo or AOL — you can use the accounts in Reminders on your Mac, and access all your reminders in one place. Set up your iOS devices to use the same account, so that your reminders stay up to date across all your devices.
Add a reminder account
In the Reminders app
on your Mac, choose Reminders > Add Account.Select the account type, click Continue, then follow the onscreen instructions.
Each account you add is listed separately in the sidebar. If the sidebar isn’t showing, choose View > Show Sidebar.
Stop using an account for Reminders
You can temporarily stop using an account so that its reminder lists and reminders no longer appear in Reminders on your Mac.
In the Reminders app
on your Mac, choose Reminders > Accounts.Select the account you want to stop using, then deselect the Reminders tickbox.
To use the account again with Reminders, select the Reminders tickbox. The account’s reminder lists and reminders reappear.
Remove an account
If you no longer want to use an account in any app, including Reminders, you can remove the account.
Note: If you use iCloud Keychain and you remove an account (other than your primary iCloud account), you’re asked whether to remove the account from your other Mac computers that use iCloud Keychain, or just turn off all the account features on this Mac.
In the Reminders app
on your Mac, choose Reminders > Accounts.Select the account you want to remove, then click the Remove button
.
You can view, add and modify reminders in the Reminders app on all your devices that use the same accounts. You can also view, add and modify your iCloud reminders on iCloud.com. Changes you make show up everywhere, so you always have your most current reminders at hand. Reminder notifications also appear on your Mac and other devices that use the same accounts.
If you use Handoff, you can switch between your Mac and other devices while viewing reminders. To open a reminder list handed off to your Mac, click the Handoff Reminders icon that appears on the left side of the Dock.