Mother in law passed away January 2025. Must that info be included in 2024 return? I know that the 2025 final tax return will need to be done.

Sorry for your loss!

 The information will be added in 2025 return as she passed away in 2025 not in 2024. If the death occurred between January 1st and October 31st, you have until April 30th of the following year to file the final return. If it was between November 1st and December 31st, it’s due six months after the date of death.

For more information please review this link: 6 Things You Should Know Before Filing a Loved One’s Final Tax Return

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