My accountant isn’t registered with QuickBooks so I can’t add him via invitation how can he access my QuickBooks? Thanks

Hello Lancasvintagechin, 

Welcome to the Community page, 

There are 2 options you can either 

give your accountant your log in details for your account and they log that way

or

your accountant can get the accountant's product and then you will be able to invite them so they can see your accounts.