USCIS Receipt Number - How to Decode The Characters & Numbers


Each of the 13 digits in a USCIS receipt number has a specific purpose. Here’s how to read a USCIS receipt number.

Let’s take an example receipt number to explain it: WAC 18 012 50960

USCIS Service Center ( WAC 18 012 50960)

Every receipt number begins with three letters that represent the service center that received the case. There are several codes for USCIS service centers. They include:

  • CSC – California Service Center
  • EAC – Eastern Adjudication Center (now known as Vermont Service Center)
  • IOE – ELIS (efile)
  • LIN – Lincoln Service Center (now known as Nebraska Service Center)
  • MSC – Missouri Service Center (now known as National Benefits Center)
  • NBC – National Benefits Center
  • NSC – Nebraska Service Center
  • SRC – Southern Regional Center (now known as Texas Service Center)
  • TSC – Texas Service Center
  • VSC – Vermont Service Center
  • WAC – Western Adjudication Center (now known as California Service Center)

The Fiscal Year (WAC 18 012 50960)

The second set of digits represent the fiscal year that the case was received.

Government agencies use a fiscal year that is different from the calendar year. It begins on October 1 and ends on September 30. So our example case number was opened between October 2010 and September 2011.

Computer Workday (WAC 11 012 50960)

The third set of digits indicates the computer workday when the case was opened.

The computer workday is basically the same thing as a workday. Therefore it excludes most weekends and holidays.

Our example case was opened on the 12th workday of the 2011 fiscal year (October 18, 2010).

The Case Number (WAC 11 012 50960 )

The final set of five digits is the case number. Each case is assigned a unique number as the USICS facility process the income case for a specific day.

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