According the the T4011 article netfile is allowed for a death return. Why then does Turbo Tax not give this option. Please check under Chapter 2 in the following link:
https://www.canada.ca/en/revenue-agency/services/forms-publications/publications/t4011/preparing-ret...
Chapter 2 - Final return
This chapter explains how to complete and file the final return. The final return can be filed electonically or on paper. For more information on these filing methods, see "How to file your return" in the Federal Income Tax and Benefit Guide.
