Choice B. You cannot prepare a 3115 for 2023. It is too late. But, if your income was lower in 2023, it would probably not be advantageous to file a 3115 for a favorable change. Instead, generally, you will want to take more deductions in years of higher income, when possible.
Form 3115 is due by the due date of the return that the accounting method change is being made for, including the extension.
