W2 Bulk Upload Testing

This application allows users to upload and transmit W2's and MW508s in the specified format.

Please keep in mind when testing:
  • No test data will be saved
  • Only text files and zip files will be accepted, test file size must not exceed 50MB
  • After validating the data and the format a status of the upload will display immediately upon the upload (ie. Accepted, Rejected)
For file validation please enter in the 2nd and 3rd number below, click Browse to select your file, and then click Upload to check if the file is valid.

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Upload File

The Comptroller's Web Services Center is available 24 hours a day, 7 days a week from any home office, or public access point. However, data may not be accessible during times of system maintenance.