How can I set up a business account on Instagram?
You may switch your profile to a business account:
Go to your profile and tap in the upper right corner. Tap Settings. For some accounts, the Switch to Professional Account option will be listed directly under Settings.
Tap Switch to Professional Account.
Select a Category for your business and tap Done.
Tap OK to confirm.
Add Contact details and tap Next. Or tap Don’t use my contact info to skip this step.
If you'd like, you can follow the steps to connect your business account to a Facebook Page associated with your business. This step is optional, and will make it easier to use all of the features available for businesses across the Facebook family of apps. At this time, only one Facebook Page can be connected to your business account.
Tap X on the top right corner to return to your profile.
For more details about converting your account to a business account please click this guide.