Business & farm

OK, thanks. 

This makes me wonder if I should do any of the following:

1) file a 'final return' with no monetary data for the JMFT trust with the 'old'EIN (ie, 123) to 'close it out'

2) file the 2021 tax return with the new name (ie FFT) and the new EIN (ie, 789) and ask anyone who sent a 1099 to the trust with the 'old EIN' to submit an amended 1099 with the new EIN? one of those who sent a 1099 is a brokerage firm so that might be tricky.

3) just file the 2021 tax return with the new name (ie FFT) and with the new EIN (ie, 789) 

More questions:

A) Is there an IRS form that can be used to tell them that an EIN is being replaced with another EIN? in this case replace the EIN 123 with the new EIN 789? this would be helpful to connect the initial tax return filed in 2020 to the future tax returns that use the new EIN 789.

B) Do I need to be concerned with the 2020 return (the first & inital tax return) that used the FFT name and the old EIN (ie, 123) now that 123 will no longer be used and is just 'in limbo-land'?

C) Also, do I need to be concerned with the old trust name (JFMT) and the old EIN (ie, 123) now that 123 will no longer be used and is just 'in limbo-land'?

Thanks, again, for your time and expertise on this.