I recently received a letter from my credit union regarding my Taxpayer Identification Number aka Social Security Number that I used for my trust account. They said that the IRS sent them notification that the TIN # did not match its records. This sent me in to a tailspin. All information on the internet and the credit union told me to use one of our SS# as TIN for trust. What's was going on. A call to a rep said no worries and said that they get random batch letters from IRS and they just want a back up form saying the same thing that I filled out when opening account. Does anybody know anything about this practice. And am I doing the right thing using our SS# for the TIN for the trust account.