Decedent Interest Income Received on Refund

I am the executor of father's estate.

He died in March 2020. He had a living trust that converted to an irrevocable trust at his passing.  The Irrevocable Trust TIN was created shortly after his passing

Problem 1

His 2020 tax return was filed on time using a 1040 and is SSN.

The 2020 tax return generated a $23 interest on a refund.  The refund was received in 2023.  The refund and the the $23 interest on the refund was issued to his SSN, deposited into the Trust and distributed. 

The IRS has issued a 2023 1099 INT to my Father's SSN

How do I file the interest - use a 1040 and the SSN to align the 1099 and the return?  Or do I file a 1041 and use the TIN?

Problem 2

During 2023 I also received a refund on the 2021 estate 1041 return.  Refund was due to a computational error. The IRS 1099 for the interest on this refund was issued to the Estate TIN.

I believe I handle this by filing a 2023 1041 for the Estate and including the interest issued to the TIN.

 

To be clear, all proceeds for both refunds were deposited into the irrevocable trust and distributed accordingly.  I am one of seven beneficiaries of the trust   I will complete the 2023 estate trust 1041 manually and send by certified mail.  If it is recommended that I file the SSN interest income on a 1040 using my father's name and SSN, I will do so using TTax and file by mail