Raisin Bank and withholding tax

Thx, I'll stick with Irish banks going forward I think as I'm none the wiser as to exactly what tax I will owe Irish revenue at the end of the deposit.
 
I don't understand why Revenue don't provide clear instructions on these type of issues. Simple step-by-step instructions to assist the citizen in paying their taxes. Surely it would assist with compliance and cut down on queries to members of their staff.
 
It might not take ages.
I sent the letter to Revenue on 20/04/2023 and got it returned stamped on 25/04.
The form is valid for 5 years from signature date, so you can request it now.
I've just received mine today, so it took 3 months.

Also the cert I received isn't valid for 5 years it just confirms that I'm tax resident in Ireland for year ended 31.12.23...are we talking about the same thing?