1099-INT income question for deceased relative

Hello,

We had a family member pass away in Aug 2023. She earned interest throughout 2023 from her primary credit union account (both before and after her passing). This account was held in a revocable trust (now irrevocable). We received a 1099-INT from the credit union which has 100% of the amount under the EIN we created upon her passing (prior 1099-INT used her SSN). The credit union has confirmed that they have not issued any other 1099-INT (ie another one under her SSN) for 2023.

I am filing a 1041 (w/ Section 645 election) by November 2024, but trying to get her final personal return sorted. Is the best option to simply include it in the 1041 w/ other trust income (the trust has earned >$600 in 2024) or somehow prorate the amount based on before/after death? Just looking for the option that will generate the least chance of potential questions/follow-up, so that we can close both out efficiently.

Many thanks!

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