I'm filing 2018 tax returns for my mother-in-law and father-in-law who are now both deceased. Can I file their tax returns under my username and password?

[clbloom94]

I'm filing tax returns for my deceased father-in-law and mother-in-law. Can I sign in on my account to file their taxes, or do I need to create a separate account for them?

[JulieR]

You should create a new/separate account for them. 

[macuser_22]

You might want to read this IRS publication - it tells you how the return must be signed and what might need to be attached.

Suggest that you read IRS Pub 559 (Survivors, Executors, and Administrators) for a lot of good information about filing the final return and estate return and other requirements.

<a rel="nofollow" target="_blank" href="https://www.irs.gov/pub/irs-pdf/p559.pdf">https://www.irs.gov/pub/irs-pdf/p559.pdf</a>