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Level 2

Turbo Tax error message

Forum|Forum|3 months ago
February 28, 2026
1 reply
3 views

I am running Turbo Taz Deluxe for Desktop (Win 11) 2025. I have enter all of my Federal data. Now when opening Turbo Tax I get the following error message:

System.Runtime.Serializaton.SerializationException:...

When at the point of reviewing my Federal forms, TT again checks for software updates, gets the same error message, and It won't go any further. I have seen this error posted from others, but have not seen a solution.

PaulNad

Level 2

I followed the link suggested, asked the question there and found another forum entry with the same question. I followed the steps details and it seems to have fixed the issue.