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In QuickBooks Online Accountant, accountants will be able to take over their clients who pay their own subscriptions. That said, you'll be paying your subscription straight to your account once you're under on his accounting firm.
In this case, you won't be losing your data. You'll still be able to work with the same company file. The only difference is that your billing subscription has been taken over to your accountant.
When it comes to transferring your account to your accountant's bucket, they'll need to perform steps 1-3 in this article: Transfer clients to your wholesale billing plan. This reference contains data your how your accountant can invite you to their firm.
Please let me know if you have any other questions about this or with QuickBooks. I'd be happy to assist you further. Keep safe!
