Let me address your concern, GrahamM26.
For now, QuickBooks Online is unable to support IR35. I suggest reaching out to your tax adviser on how to record this in our program.
You can check our QuickBooks Online Blog. This way, you'll be updated and aware of the latest feature releases and product improvements.
Feel free to get in touch with us if you have other payroll concerns. We're just one post away. Keep safe!