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IMRF Pay Period Report - File Layout and Data Mapping

The default file name for the IMRF Pay Period report is IL IMRF Pay period Report_<Report creation date>_<Report creation time>.csv.

The report file contains one record per employee per month, irrespective of whether the employee received multiple checks that month.

The report reflects the monthly dates based on the Report Date selected on the IL IMRF Pay Period Report-Report page. If the report date falls in May 2024, then the Payment Date, Period Start, and End Dates are 05-31-2024, 05-01-2024, and 05-31-2024, respectively.

Do not tamper with the .csv electronic file by opening it in Excel and saving it, as this might cause the date formats, etc., to change and not in the order that IMRF is expecting. It is recommended that you open it using Notepad.

The following table outlines the field names, descriptions, data types, lengths, and whether they are required for the IMRF Pay Period report.

Field Name

Description

Data Type

Length

Required?

SSN

Social security number without hyphens. 

Integer

9

Yes

MemberID

The employee's unique member ID.

Integer

11

No

FirstName

The employee's first name.

Character

50

Yes

LastName

The employee's last name.

Character

50

Yes

Plan

The pension plan.

Code

7

Yes

PeriodStartDate

The beginning date of the wage reporting period.

Date

10

Yes

PeriodEndDate

The ending date of the wage reporting period.

Date

10

Yes

PaymentDate

The date when the employee was paid.

Date

10

Yes

ReportableWages

The wage amount reported.

Decimal

21

Yes

Overtime

The overtime wage amount reported.

Decimal

21

No

Contributions

The employee contribution amount reported.

Decimal

21

Yes

VoluntaryAdditionalContributions 

The voluntary additional contribution amount reported.

Decimal

21

No

FinalWages

Indicates whether reported amounts are the final wages.

Code

1

Yes

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