There is no charge for filing an amended return with TurboTax. The amend function will not be available in TurboTax until late March. When it is available your reinstalled software will have an amend option on it. Just follow the directions in TurboTax to correc the W-2. The W-2 should have the corrected box checked. Go through the screens until you are done with the amend and then refile your returns.
You generally must file an amended return within three years of the date you filed the original return or within two years after the date you paid the tax, whichever is later.
