Accounts, and income generated post death.

For non-retirement type accounts, there’s a basis adjustment to date of death FMV. So when an asset like real estate is sold, only post death appreciation is taxed. All predeath appreciation is ignored.

If the estate or trust is named as beneficiary of a traditional tax deferred account, then there will be taxes out.

And if the estate generates income post death, that is taxable.

But that is just about it normally.

By the time the K-1s have been prepared, I doubt there’s much you could do to avoid any of the taxes, including gifts to grandchildren. They likely won’t help.