Idaho Code § 28-22-106
The notice of dishonor shall be sent either:
(2) By regular mail, supported by an affidavit of service by mailing, to the address printed or written on the check.
(c) The affidavit of service shall be substantially in the following form:
STATE OF ) AFFIDAVIT OF SERVICE
) BY MAIL
COUNTY OF )
……………….., being first duly sworn on oath, deposes and states that he/she is of legal age and that on (date)………., …., he/she served the attached Notice of Dishonor, by placing a true and correct copy thereof securely enclosed in an envelope addressed as follows:
…………………………
…………………………
…………………………
…………………………
and deposited the same, with postage prepaid, in the United States mail at ………………….., ………………….
Subscribed and sworn to before me this …. day of …………, …..
(3) The notice of dishonor shall be substantially in the following form:
NOTICE OF DISHONOR OF CHECK
A check drawn by you and made payable by you to ………. in the amount of ………. has not been accepted for payment by ………., which is the drawee bank designated on your check. This check is dated ………., and it is numbered, No. ………
You are CAUTIONED that unless you pay the amount of this check within fifteen (15) days after the date this letter is postmarked, you may very well have to pay the following additional amounts:
(2) Interest on the amount of the check which shall accrue at the rate of twelve percent (12%) per annum from the date of dishonor.
You are advised to make your payment to ………. at the following address: ………..
[28-22-106, added 1994, ch. 185, sec. 2, p. 605; am. 2002, ch. 288, sec. 3, p. 835.]