Maryland
Last Updated August 22, 2017
Agency Information
Comptroller of Maryland, Revenue Administration Division – Withholding Tax
Maryland Department of Labor, Licensing, and Regulation, Division of Unemployment Insurance – Unemployment tax
Add to existing company setup
Submit a request to your service team to add MD (withholding) and/or MDSUI (unemployment) to your company setup. Please include the below with your request:
Comptroller of Maryland, Revenue Administration Division
- Withholding – Withholding account number and Deposit Frequency. If you’re unsure of your deposit frequency or account number you can call the agency at 410-260-7980.
Maryland Department of Labor, Licensing, and Regulation, Division of Unemployment Insurance
- Unemployment – Account Number and Tax rate. This can be found on a Tax Rate Notice or the Quarterly contribution report. If you’re unsure of your tax rate or account number, you can call the agency at 410-767-2414.
Power of Attorney – POA is required, please obtain the prefilled form from your client service representative.
Register a new company
Comptroller of Maryland, Revenue Administration Division &
Maryland Department of Labor, Licensing, and Regulation, Division of Unemployment Insurance
Employers can register for both withholding and unemployment accounts online at https://interactive.marylandtaxes.com/webapps/comptrollercra/entrance.asp. Select Begin Registration at the bottom of the page. Follow the prompts to register your business. Once completed you will receive your account number and deposit frequency 5-7 days after registering. Contact taxhelp@comp.state.md.us after 5 days to receive your account number earlier.
Third Party Registration and/or Power of Attorney Instructions
Power of Attorney is required, please obtain the prefilled form from your client service representative.