For questions about an incorrect 1099-G, contact the Benefit Payment Control unit at 410-767-2404. Complete your Maryland return through the line labeled "Maryland Tax." Complete Form 502CR, following the instructions provided. You will first need to sign in to your BEACON portal using the link employer.beacon.labor.md.gov. Gov or complete the online inquiry form here. Where's My Refund Make a Payment Make an Estimated Payment File an Extension Individual Tax Forms and Instructions DOL-Unemployment Insurance. If you believe that your information has been used to fraudulently file a Unemployment Insurance (UI) claim, contact the Maryland Department of Labor. This chapter deals with state law provisions for identifying, establishing, and collecting Unemployment.