How do I set up and additional company

I can help you with creating another company for your QuickBooks Online (QBO), @patriciaheisler4.

You'll need to sign-up for a new QuickBooks Online account to create another company. One company file is equivalent to one subscription.

To put this company under your existing Intuit ID, log into your current company when creating a new account. Simply click on the Add another company button when creating another account (I'll be adding a screenshot for reference). From there, you'll only be asked for an Email address and Password (you should be using the same email address).

Please utilize this article for more details: Create or add another company file to QuickBooks Online.

Additionally, discover the basics of managing your QuickBooks Online subscription, whether you need to examine your billing history, change the card, or update the card. Refer to this article: Manage billing, payment, and subscription info in QuickBooks Online.

Let me know if you need further assistance in creating a new company by leaving a comment below. I'm always glad to help in any way I can. Have a great rest of the day. 

@patriciaheisler4 

One QBO account is for one company file. Consider using QB Desktop to manage multi company files with a single license.

I have QB Desktop and every time I select New Company, it closes...

@SindiW 

Which QB Desktop year version?

Can you open the sample file without any issue?

Thanks for bringing this issue to our attention, @SindiW. I'll make sure to take care of it. 

I understand the importance of resolving the issue where QuickBooks Desktop closes unexpectedly when selecting a new company. I'd be more than happy to help you how to fix this. We can fix this issue by using QuickBooks Desktop Tool Hub since this is designed to help repair common issues you're facing when working with your QBDT account. 

To get started, download and install the program. For the best experience, we recommend using Windows 10 (64-bit) and closing QBDT before using it. To do so, here's how:

1. Close your QBDT.
2. Download the latest version of the QuickBooks Tool Hub and save the file somewhere you can easily find it.
3. Open the file you've downloaded.
4. Follow the on-screen steps to install. Agree to the terms and conditions.
5. When the installation finishes, double-click the icon on your desktop or search it on Windows when you're unable to find it to open the file.

After downloading it, you can use it to fix the issue you're having since each tab has a set of tools to help with different types of problems. Like the following: 

• Company File Issues
• Network Issues
• Program Problems
• Installation Issues
• Password Reset
• Help & Support
• Advanced Tools

Moreover, I recommend running the Program Problems since it supports the restoration of problems when you open or work in the program. You can also use this section to resolve typical PDF and print-related issues.

For reference, you can check this article: Fix common problems and errors with the QuickBooks Desktop Tool Hub.

Also, you can visit this article if you want to start over a new company file with the data from your previous file: Start a new company file with data from your existing file.

Don't hesitate to get back to us by replying to this post if you have further concerns about how QBDT closes when you choose New company. The Community space is always available at any time to assist you.