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Frequently Asked Questions About Year End Magnetic Media Reconciliations

2 - How can I confirm an employee's Maryland Central Registration number?

You can contact Taxpayer Services by telephone at 410-260-7980 from Central Maryland, or 1-800-638-2937 from elsewhere, by e-mail at or by fax at 410-974-2967.

Be prepared to provide the following information:

  • Federal Employer Identification Number (FEIN).
  • Name of company.
  • Name and method of contact for the person inquiring.

Links for Magnetic Media Reconciliations FAQs
Business Tax Types
Income Tax
Employer Withholding
Year End Reconciliation Requirements
Magnetic Media Reconciliations FAQs
  q1 - What is the Maryland Central Registration Number?
  q2 - How can I confirm an employee's Maryland Central Registration number?
  q3 - Who can file paper wage and tax statements?
  q4 - Can I file my corrections on magnetic media?
  q5 - What documents do I need to send with my magnetic media?
  q6 - What if I file both paper returns and magnetic media?
  q7 - Am I required to submit a test file?
  q9 - Can I file back-year data on magnetic media?
  q8 - Is there a filing deadline?
  q10 - Do you return the media after you're done?
  q11 - What if I am having difficulty creating my W-2 file?
  q12 - Where do we send the magnetic media?
  q13 - What are the most common errors associated with magnetic media filing?
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