Hi carol12,

Accessing your QuickBooks account simultaneously is possible. All you have to do is log in using your user credentials.

To do so:

1. Go to http://qbo.intuit.com.
2. Enter your User ID and Password.
3. Click Sign in or hit Enter on your keyboard.

Note: There are some tasks that you can't work on simultaneously.

Please refer to this article for more information about: What are usage limits in QuickBooks Online?

I've also added our page about account management for some help articles for your future tasks.

If you have other concerns, don't hesitate to reach out anytime.