Rental income during estate - Taxes

[Charles H.]

Hello,

so I am in the middle of my mother's estate. This is under a trust, so no probate.

She passed on september 4th, the trust administration should take 2-3 months until all the assets are under my name.

Question: when tax returns must be done, there is an option to say the person passed. But who gets taxed on the income occurring during the 2-3 months until it's titled to me? Will it be part of my mother's final income tax?

Thanks for your help.

-Charles