@mlm522 wrote:
What online version of TurboTax supports 2017 form 1099-S amendment?
A 2017 tax return cannot be amended using the TurboTax online editions.
See this TurboTax support FAQ for amending a 2017 tax return originally completed and filed using TurboTax - https://ttlc.intuit.com/community/amending/help/how-do-i-amend-a-return-in-turbotax/01/27372
