Command Codes
IMF Letters
Popular Movies
Acronyms
Breaking the Codes
100

This command code is used to establish control bases.

What is ACTON?

100

THIS TOOL IS A MANDATORY TOOL FOR ACCOUNTS MANAGEMENT EMPLOYEES

WHAT IS THE IAT LETTER TOOL?

100

I'll Be Back.

WHAT IS 

The Terminator?

100

this nine digit number is issued by the IRS to individuals who are required to have a taxpayer identification number and are  not eligible to obtain an SSN.

What is AN ITIN

  INDIVIDUAL TAXPAYER IDENTIFICATION NUMBER

IRM 21.6.1.6.6

100

This reason code is used for Business income (or loss) on Schedule C

             WHAT IS RC 012 ?


               IRM 21.6.7-1

200

This command code is used to research the Centralized Authorization File.

What is CFINK?

200

THIS LETTER IS USED WHEN REFERRING TAXPAYER INQURIY/FORMS TO ANOTHER OFFICE

WHAT IS A 86C LETTER?

200

They're Here

What is

     Poltergeist ?

200

Use this AMS tool for considering penalty relief.

       What is RCA (Reasonable Cause Assistant)

                 IRM 20.1.1.3.6 

200

If an adjustment is the result of a CP 08, CP 09, or CP 27, use this source code

               WHAT IS SC 1?


             IRM 21.6.7.4.1.2

300

This command code is used to provide name, address and other entity information from an input of the taxpayers TIN.

What is ENMOD?

300

YOU WOULD SEND THIS LETTER TO REQUEST A COPY OF A CANCELLED CHECK IN RESPONSE TO A PAYMENT INQUIRY

WHAT IS A 167C LETTER?

300

A Long time ago, in a galaxy far far away

What is Star Wars?

300

Process codes listed under the transaction code (TC) 922 on the account indicate involvement by this program

               What is AUR?

          Automated Underreporter             

300

This is the reason code used when adjusting RRC.

                         What is 096?

                  IRM 21.6.3.4.2.14.1


400

This command code is used to enter requests for original documents.

What is ESTAB?

400

THESE COMMAND CODES ARE USED WHEN THE IAT LETTER TOOL IS UNAVAILABLE

WHAT IS CC LETER/CC LPAGE?

400

Wakanda Forever !!

           What is

    Black Panther ?

400

If correspondence or a loose form is received, research cc Txmod (i.e., TC 971 with any of the following ac 121, ac 124, ac 125 or ac 129) to indicate this

                         What is TPP ?

             Taxpayer Protection Program

400

What blocking series is used to make an adjustment on a superseding return

                WHAT IS BS 00?

                 IRM 21.6.7.4.10


500

 BRINGS THE ACCOUNT ONLINE IMMEDIATELY      

WHAT IS CC MFREQC?

500

CC, TIN, MFT, YEAR, LETTER NUMBER, SIGNATURE CODE

WHAT ARE THE MINIMUM FIELD REQUIREMENTS SUBMITTED FROM CC LETER TO GENERATE CC PAGE INPUT SCREEN?

500

Go Ahead Make my Day !!

What is

Sudden Impact? 4th movie in the "Dirty Harry" series           

500

If the correspondence is can't pay, won't pay, or will pay later, regardless of the account status, route the case to one of these locations

                               ACS

            Automated Collection System 

                            or   CSCO

          Compliance Services Collection Operations

                    IRM 21.3.3.4.9.2.1

500

This credit reference number is used when adjusting RRC

              What is CRN 256?

             21.6.3.4.2.14.1

M
e
n
u