Maryland State Tax Guide

State tax registration guide for Maryland. 

REQUIRED REGISTRATIONS

  • Unemployment Insurance: Comptroller of Maryland

  • Income Tax Withholding: Comptroller of Maryland

REQUIRED INFORMATION

  • SIT ID # (format: XXXXXXXX)

  • SIT payment frequency

  • SUI ID # (format: XXXXXXXXXX)

  • Current year SUI rate

Required Client Information for Localities in Maryland:

  • Note: regardless of the locality, all Local MD Withholding taxes have the same ID # as SIT (listed above).

  • Maryland local tax, also known as piggyback, amounts are included with Maryland withholding.

 

REGISTERING FOR STATE UNEMPLOYMENT AND INCOME TAX

You'll need to register with the Comptroller of Maryland to get both your Central Registration Number (CRN) and your Employer Account Number. 

Tip:

Future-date registration is possible for this state's income tax withholding!

Once registered, you will receive both an Unemployment Account Number (UI) (called “MD Employer Account Number”), Unemployment Rate (%) and Withholding Tax Account Number (WH) (called “CRN”) which you will need to enter into Namely Payroll under Company > Tax (UI & WH tax).  

If you've run payroll in Maryland previously, you can find your ten digit MD Employer Account Number on any notice received from the MD Department of Labor, Licensing and Registration, Division of Unemployment Insurance. You can also find it on your Unemployment Insurance Quarterly Contribution Report (FORM DLLR/OUI 15).

If you've run payroll in Maryland previously, you can find your eight digit CRN on your Withholding Tax Return (Form MW506) which you would have received from the Comptroller of Maryland.


Contact:

For additional information on registering for taxes, read Employment Tax Registration Overview.

 

POWER OF ATTORNEY FORMS

Please note, Namely does not require a Power of Attorney for this state at this time. It is not required to file or remit payments on your behalf. If one is needed to resolve a tax matter, the tax notice team will request one from you at that time.

If a Power of Attorney is requested from you, you should email completed copies of the forms namelyPOA@Namely.com with the CID in the subject line for processing. We will update our system and maintain a copy of each form for record-keeping purposes

For additional information on Power of Attorney, read Completing the Power of Attorney Package.
 

STATE INCOME WITHHOLDING FORMS

Namely uploads Federal and State W-4 documents to your HRIS site for use during Onboarding, or if you need to send W-4s to employees who need to make withholding adjustments. 

Tip:

The most up to date W-4 documents can be found in the Namely section of the Document dropdown menu in Onboarding and Manage eSignature. 

Form Name: MW 507 

Accepts Fed W-4: No

Comments: A new employee must give an employer a Form MW 507, Employee's Withholding Exemption Certificate, showing the number of exemptions claimed. The certificate is effective upon the first payment of wages and remains in effect until an amended certificate is furnished. Employers that do not have an MW 507 form must withhold on the basis of one withholding exemption.

 

PAYROLL + TAX FACTS

Refer to this document for more information:2022-2023 Federal and State: Payroll and Tax Fact Sheet.