Maryland Payroll Setup

Last updated: July 21, 2026

Overview

The Maryland Payroll Guide provides state tax information for employers. Select a tab below to view agency contact information, supported tax filings, tax setup requirements, and Third Party Administrator (TPA) instructions for each tax type.

Maryland Tax Information

Withholding

Agency Information

Website: Maryland Comptroller(opens in new tab)
Phone: (800) 638-2937

New employers: Register HERE(opens in new tab) or follow the registration guide(opens in new tab)
Registered employers: Access account HERE(opens in new tab)

Supported Tax Filings

  • Employer’s Return of Income Tax Withheld (MW506)

  • Wage and Tax Statement (W-2)

Required for Tax Setup

  1. Withholding Account Number (8 digits, 12345678)

  2. Filing frequency (3 Day Rule, monthly, quarterly or annually)

Unemployment Insurance

Agency Information

Website: Maryland Department of Labor(opens in new tab)
Phone:  (800) 492-5524

New employers: Register HERE(opens in new tab)
Registered employers: Access account HERE(opens in new tab)

Supported Tax Filings

  • Quarterly Contribution & Employment Report (DUI-15/16)

Required for Tax Setup

  1. Unemployment Account Number (10 digits, 1234567891)

  2. Unemployment Insurance Base Tax Rate (X.XX%)