I need to amend my 2016 and 2017 tax returns but I don't have a computer with Windows (I have a Mac). The SW available is only for Windows. What other options do I have?

[DoninGA]

See this TurboTax support FAQ for requesting a Mac installation file so you can amend a tax return originally completed and filed using the online editions - https://ttlc.intuit.com/community/amending/help/how-to-amend-change-or-correct-a-return-you-already-...