Standard IRS Letters

The IRS corresponds very largely with standard form letters, pulled by some clerk from their computer database. Here is some info about those most commonly received.

References ISMIS Found Among T-F-N Posts:

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LT-11, 1058c & 3172DO

Message #8957
Message #8978
Message #22798

4840 & CP-501, 502, 503, 504

Message #7610
Message #8406
Message #8436
Message #10118
Message #11894
Message #16641
Message #20032

3176(SC) & PRE-6640

Message #4247
Message #7701
Message #11301