Maryland Employer Tax Information
To sign up for Square Payroll in Maryland, you must be registered with the Comptroller of Maryland and the Maryland Department of Labor, Licensing and Regulation.
| Agency | Tax ID | Tax ID Format |
|---|---|---|
| Maryland Central Registration Number | XXXXXXXX (8 digits) | |
| Maryland Department of Labor, Licensing and Regulation | Maryland Division of Unemployment Insurance Employer Number | XXXXXXXXXX (10 digits) |
Maryland New Employer Registration
Comptroller of Maryland
Allow approximately 5-7 business days to receive your Central Registration Number.
If you need to receive your Central Registration Number more urgently or wish to speak with the Comptroller’s office, call 800-MD-TAXES.
Maryland Department of Labor, Licensing and Regulation
Online registration with the Comptroller of Maryland will automatically register you with the Maryland Department of Labor, Licensing and Regulation for state unemployment insurance taxes.
Maryland Unemployment Insurance Tax Rate
Once you receive your Maryland Division of Unemployment Insurance Employer Number, you can look up your tax rate online. See additional instructions below on how to locate your rate.
Find Your Maryland Tax ID Numbers and Rates
Maryland Central Registration Number
Look up your Central Registration Number online by logging into the Comptroller of Maryland’s website.
Locate your eight digit (XXXXXXXX) Central Registration Number on any previously filed Annual Reconciliation Return (Form MW-508).
Call the Comptroller’s office: 800-MD-TAXES
Maryland Division of Unemployment Insurance Tax Rate
Locate your ten-digit (XXXXXXXXXX) Unemployment Insurance Employer Number on any previously filed quarterly report (Form DLLR/DUI 15/16).
Call the Maryland Department of Labor, Licensing and Regulation: 410-767-2413
Maryland Unemployment Insurance Tax Rate
Look up your UI tax rate online.
Call the Maryland Department of Labor, Licensing and Regulation: 410-767-2413
You are responsible for ensuring Square Payroll has the correct tax rate on file for your business. If you need to update your rate, you can do so from the Tax Info tab in your online Square Dashboard.
Maryland State Tax Details
Square Payroll processes the following per the frequency below to the listed state agencies:
| Agency | Name | Frequency |
| Comptroller of Maryland | Withholding Tax Payments (Form MW506) Note: The withholding tax payment made by Square Payroll services as both the payment voucher and filing. This form will not appear under Tax Forms in Dashboard. | Per Pay Run |
| Annual Employer Withholding Reconciliation Return (MW508) | Annually | |
| Wage and Tax Statement (W-2) | Annually | |
| Division of Unemployment Insurance | Unemployment Insurance Quarterly Contribution Report Payment | Quarterly |
| Unemployment Insurance Quarterly Wage and Contribution Report (DLLR/DUI 15/16) | Quarterly | |
| State Directory of New Hires | New Hire Registry Report | Per New Employee |
Learn how to locate or obtain an EIN.