Supported Filing Formats through Aatrix

When submitting a filing through your payroll software, the filing will first come through our eFile Center. If the Agency requires a specific format, such as Magnetic Media, the eFile Center will file in that format to the appropriate agency.

As part of the Aatrix Guarantee, we guarantee to file in the appropriate format that the agency requires. Please note that your requirements may differ outside the Aatrix system due to Aatrix’s bulk filer status.

Related Pages:

Replacing / Resubmitting an eFiling

Learn how to replace and resubmit an eFiling.

Merging

Learn more about merging

Account Number Formatting

Read how to adjust Account Number Formats.

Social Security Number Information

Learn about valid Social Security Numbers.

eFiling Cutoff Dates

Learn about Aatrix eFile's Cutoff Dates.