K-1 needed when income threshold not met

I am the fiduciary for a personal Trust whose assets were fully distributed in 2023, and a final return was filed for that year. The entity had a refund on its 2023 taxes. In that the IRS took a bit of time issuing the refund, they paid an additional $474 in interest. I received a letter from the IRS indicating this interest could be taxable.

In that the Trust was fully distributed in 2023, this $474 was its only income in 2024. I know this amount is below the $600 threshold for needing to file a 2024 return for the Trust, but I distributed this amount to the two U.S. beneficiaries, who I presume will need to report this on their personal returns.

If this is so, it seems the I will need to file a 1041 for the Trust even though the income threshold was not met, so I can produce the K-1 forms for the beneficiaries.

Am I correct in this line of thought?
Thank you.