State tax filing

@PatriciaV The 511-NR packet I obtained from Oklahoma's website says that any nonresident with GROSS income over $1000 is required to file. The rents I received total substantially more than that, and I assume that is considered gross income. However, after depreciation deductions on the equipment, the net income is a loss. It will continue showing a loss for 5 years while it depreciates. Even if I am not required to file, I would assume that something would have to be filed with Oklahoma to establish the losses to be carried forward to future years. In this situation, considering the requirement than any nonresident with Oklahoma-sourced GROSS income of more than $1000 is required to file an Oklahoma return, do you still think I don't have a filing requirement?