Comptroller of Maryland. Serving the People. Peter Franchot, Comptroller
Maryland Taxes
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Frequently Asked Questions from Tax Professionals

15. How do I provide copies of other states' returns with my client's electronic return?

You are required to attach (PDF) a copy of the other states’ return with an electronic submission.

If the required documentation is not attached, the credit will be denied and a notice sent.



 
Links for Tax Professionals FAQs
Taxpayer Assistance
Tax Professionals FAQs
  q1 - How do I know when Maryland will decouple from federal tax law?
  q2 - How do I register for the annual Federal-State Tax Institutes?
  q3 - How can I arrange for a speaker to come talk to my organization?
  q4 - Where can I find Maryland tax laws and regulations?
  q5 - What is the best way to contact you when I have a technical question?
  q6 - Can I obtain Maryland forms on compact disc?
  q7 - How can I set up an electronic funds transfer?
  q8 - Where can I review recent court decisions affecting Maryland tax law?
  q9 - I'm thinking about becoming an e-file provider. How do I get started?
  q10 - How can I establish power of attorney for state tax purposes?
  q11 - Can Maryland fiduciary returns be electronically filed?
  q12 - How does Maryland monitor compliance among tax practitioners?
  q13 - If my clients electronically filed return is rejected and must be filed on paper how do I document this?
  q14 - If my client opts out of electronic filing how do I document this so that there is no penalty under the electronic filing mandate for preparers?
  q15 - How do I submit copies of other states returns with my clients electronic return?
  q16 - How do I submit required attachments with my client's electronic return?
 
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