Official Comptroller of Maryland Website
Marylandtaxes.gov
bServices Online Service Center

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)

Attention: The W2 Bulk Upload Application is moving to the Maryland Tax Connect Portal starting January 1, 2025. As of 12/11/2024, no more filings will be accepted on bFile. The option to "View History of Filings Only" will be available at a later date. Additional information regarding filing of W2/1099/508 electronically will be posted at www.mdtaxconnect.gov. Under Quick Links, click on User Guides and Tutorials.

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.

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