Adding a standard user is billable as it says in my manage users. How much will it be? How many managers I have on my standard subscription?

Hello there, @mnsh-varshney. 

Thanks for visiting the Community today. A billable user could be a standard and/or company admin user. It is counted from the number of allowable users you can add in QuickBooks Online. Thus, you will not be billed with this since it's a feature that comes along with your subscription. 

Here are the following user types you can use according to your QuickBooks Online plan: 

For more information, you can also check out this article: User types and user permissions in QuickBooks Online.

Check out this article to help you learn about managing your existing users if you've already reached your user limit: Add, delete, or change user access. 

Should you have more questions, feel free to message us again. We're always delighted to help you some more.