Congrats on making your first post in the Community, @michaelmitchell.
I'd be glad to see what options we have for you. At this time, the option to add another person to your self employed account isn't available. However, you can look into our Small Business accounts.
If you desire to add another user to an account, I recommend looking into our Essentials account. You can have up to three users with this product.
Note: Only the master admin can track vehicle mileage in QuickBooks.
Below are two links that can give you additional insight into tracking mileage and other types of accounts that QuickBooks offers.
I'm only a couple of clicks away if you need me. Thanks for allowing me to help you today. Have a splendid day!
