Anyone who has a personal TikTok account can create a TikTok Business Account. To upgrade your account:
Open the TikTok app and log in to your account
Go to your profile homepage by tapping Me
Open your Settings and privacy page by tapping the three dots icon on the top right corner of your profile homepage.
From the Account module, tap Manage account.
Then under the Account control options, tap Switch to Pro Account
Tap Business under Select an account type
Select a category that best describes your account, then tap Next, which will complete the process.
Once you've switched to a Business Account, you can edit your profile with newly available options, like adding your website or email address to your profile.
For a full list of features supported by TikTok Business Accounts, see TikTok Business Account Features.
Note: If you wish to switch to a personal account, go to Settings, and privacy > Manage account > Account control and tap Switch to Personal Account.