My client have 4 bank accounts, as some accounts have confident info that not all employees are allowed to see I would like to know is there an option to split access?

Hi, ilana-veritasinc. 

Yes! QuickBooks Online allows you to control user access rights to any of your employees. You can use the Standard user type and you can set different levels of access for this user. 

They do not have an option to access your bank register and not be able to see the connected accounts on the banking page. Please check out this article for details: User roles and access rights in QuickBooks Online. 

We also have a few more user access type. In case you'll want to add another type of user, you can check them in this article: Add and manage users in QuickBooks Online. 

Get back to me anytime if you have other questions about managing user your QuickBooks account. Thanks!​​​​​​​