I mailed my federal tax form in 4 months ago. (TurboTax Online would not allow me to efile). Now, I want to amend a mistake. But, "2024" is not an option in the Amend menu, below: 
I mailed my federal tax form in 4 months ago. (TurboTax Online would not allow me to efile). Now, I want to amend a mistake. But, "2024" is not an option in the Amend menu, below: