Hello there. Allow me to route you to the appropriate support for Form 1120.
Please know that QuickBooks Online can't generate Form 1120. However, we have Turbotax and ProConnect that can. With this, I suggest getting in touch with them to get further assistance.
Here's how:
TurboTax Community
ProConnect Community and Support
In the meantime, you can check out these helpful articles about the taxes in QuickBooks Online:
Furthermore, you can always visit our QuickBooks Blog to learn about our product updates and innovations.
I'll be around if you need further assistance or have additional QuickBooks-related concerns. Keep safe.