I need to amend my 2018 taxes. I tried to do it online, but I have a Google Chromebook, not a Mac or PC. How can I solve my issue?
2018 (or earlier) cannot be amended online.
Amended returns can only be mailed. It is suggested that it be mailed certified with return receipt (or other tracking service) to verify that the IRS receives it.
See this TurboTax FAQ for detailed amend instructions:
-- Amended returns can only be mailed - allow 8-12 weeks - can take up to 16 weeks (4 months) for processing.
You can check the status of the amended return here, but allow 3 weeks after mailing.
but I have a Google Chromebook, not a Mac or PC. How can I solve my issue?
The CD/download 2018 software can only be installed on a PC or Mac computer that meets the system requirements.