@gowen the 2018 version of TT is no longer supported, so you can't download the updates from the TT website. TT supports 3 years back, so 2022, 2023, and 2024. (and of course 2025). I suspect 2021 support is about to end.
Even if you did not file on time, TT has made a business decision not to support these back years.
Why would you need to update your 2018 tax return in any event? just curious.
