How do you set up a 2nd quickbooks account for a 2nd company but use one app?

Hi, philfoxuk-yahoo-.

One company file in QuickBooks Online (QBO) is equivalent to one subscription. Thus, you need to sign-up for another QBO account to create a second account for your business. The good news is, you can use your existing Intuit ID or login credentials for multiple accounts.

To add your second account:

1. Open this link https://quickbooks.intuit.com/choose-country/.
2. Select your country and choose the version of QuickBooks that fits your business.
3. Select Buy Now or SignUp for a free 30-day trial.
4. Follow the on-screen instructions to complete the process.

I'm also adding this article for more tips about managing multiple company files in QuickBooks: Create or add another company file to QuickBooks Online.

Once done, you can simply switch from one company to other quickly. See this link as your guide: How do I switch companies?.

If you have any other questions about setting up your second company file, let me know by adding a comment below. I'm more than happy to provide additional assistance. Keep safe!

@philfoxuk-yahoo- 

You may purchase the second QBO account with the same email address. Did you encounter any error message?

https://quickbooks.grsm.io/UK

So no matter which “level” of qb eg “essential” or “quick start” , you must pay 2 subscriptions for each company?

Good to see you in the thread. @kwikb is qrap.

Yes, you're right, since one company file is equivalent to one subscription. If you want to add another account to your QuickBooks Online (QBO), you can follow the steps provided by my colleague @Angelyn_T.

You can also read this article on how to manage your billing & subscriptions to assist you in managing your QBO account.

If you have other questions about your QBO subscription, feel free to leave a comment. I'm here to lend a hand.