Unfortunately, TurboTax has changed the date to 3/7/19 that the amendment form will be available. Hopefully, that date will not change. Amended returns must be mailed.
You have 3 years from the date you filed your return (or 2 years after you paid the tax due, whichever is later) to file an amended return, which means you don't have to get it done by the April 15 filing deadline.
