Solved
I have stop paying their rent with funds from the trust but have no idea what if any taxes they will have to pay in 2021 because I used funds from their grantor trust to pay their rent. My dad has dementia so he did not tell me not to use the trust money to pay their rent? I am sick over this so any help would be greatly appreciated
You need to consult with your attorney and also with a local tax professional.
See https://taxexperts.naea.org/listing/service/estates-gifts-trusts
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