Maryland Combined Registration explains how Maryland Business Owners and Employers obtain a State Tax Identification Number using the Combined Registration Application.
This guide covers prerequisites such as a FEIN and SDAT number, how To apply online, by mail, or by phone, and what to expect after submission.
1. Overview of Maryland Combined Registration
Maryland requires most businesses operating in the state To register for a State Tax ID before selling taxable goods, withholding employee wages, or engaging in regulated activities.
The Combined Registration Application, or CRA, centralizes registration for sales and use tax, employer withholding, and other Maryland tax accounts into a single process.
Who Needs To Register
Any individual or entity conducting business in Maryland must register, including Sole Proprietors, Partnerships, Corporations, and LLCs.
Register if you will sell goods or services subject to sales and use tax, withhold Maryland income tax from employee wages, operate as a Transient Vendor, sell tires, or collect admissions and amusement tax.
What Is the Combined Registration Application (CRA)?
The CRA is a single form used by the Comptroller of Maryland To establish multiple state tax accounts at once.
It reduces duplicate data entry and speeds up account setup for Sales and Use Tax, Withholding Tax, Tire Recycling Fee accounts, and selected special accounts.
2. Prerequisites Before You Apply
Gather required federal and state identifiers To avoid delays when completing the CRA.
Most businesses need a Federal Employer Identification Number (FEIN) from the IRS; Sole Proprietors without employees may use a Social Security Number.
You should also have a Maryland Department of Assessments and Taxation SDAT Identification Number if your business is an entity registered with SDAT.
Additional Preparation Tips
Ensure the business legal name and trade name are consistent across filings To prevent processing issues.
Prepare ownership information including names, titles, addresses, and Social Security Numbers for responsible parties before starting the application.
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3. How To Apply For a Maryland State Tax ID
Maryland offers three registration methods: online, paper, and telephone.
Online Registration via Maryland Tax Connect
Visit the Maryland Tax Connect Portal and create an account or log in if you already have one.
Select Apply for a Maryland Business Tax Account - Combined Registration Application and follow the prompts to submit the CRA electronically.
Online registration is available 24 hours a day and provides immediate confirmation upon submission.
Paper Application
Download and complete the CRA form from the Comptroller of Maryland website if you prefer to mail your application.
Mail the completed form to: Comptroller of Maryland, Revenue Administration Center, 110 Carroll Street, Annapolis, MD 21411-0001.
Processing for mailed applications may take up to two weeks so plan accordingly.
Telephone Registration
If you already have an existing Maryland business tax registration you can add certain accounts by phone.
Call 410-767-1300 for Baltimore area assistance or 1-800-492-1751 toll free for long distance support.
Telephone registration is useful for adding accounts such as Sales and Use Tax, Admissions and Amusement Tax, or Tire Recycling Fee accounts.
4. Information You Will Need To Provide
Be prepared To enter business details including legal name, trade name, and physical address.
Provide ownership and responsible party information with Social Security Numbers and contact details for each named individual.
Describe your business activities and indicate which tax accounts you are requesting such as Sales and Use Tax, Employer Withholding, or Unemployment Insurance accounts.
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5. After You Submit Your Application
Online applicants receive an immediate confirmation number after submitting the CRA.
Paper applicants should expect up to two weeks for processing and will receive account numbers and any required coupons or certificates by mail.
Once processed you will receive your Maryland State Tax ID and instructions for filing and payment frequencies where applicable.
Special Accounts and Follow Up Registration
Businesses engaging in Motor Fuel, Alcohol, or Tobacco activities must complete additional registration requirements with the appropriate division of the Comptroller’s Office.
Expect the Comptroller’s Office to contact you with forms and instructions for those specialized tax accounts.
6. Best Practices and Employer Responsibilities
Keep copies of all submitted forms and confirmation numbers in your business records for compliance and audits.
Update registrations promptly if your business structure, ownership, or address changes To avoid penalties or missed communications.
Consult an Accountant or Payroll professional if you are unsure about which accounts To request or appropriate filing frequencies for withholding and sales tax.
Common Mistakes To Avoid
Do not use inconsistent business names across federal, SDAT, and Comptroller filings as this can delay processing.
Do not wait To obtain a FEIN if your business will hire employees or operate as a corporation or partnership.
7. Quick Reference Table of Accounts and Agencies
| Account Type | Agency | How To Register |
|---|---|---|
| Maryland State Tax ID | Comptroller of Maryland | Apply via Maryland Tax Connect online or submit the Combined Registration Application by mail |
| Federal Employer Identification Number (FEIN) | Internal Revenue Service | Apply online at the IRS EIN application for immediate issuance |
| SDAT Identification Number | Maryland Department of Assessments and Taxation | Register your business entity with SDAT to receive the identification number |
| Sales and Use Tax | Comptroller of Maryland | Request on the Combined Registration Application or add via Maryland Tax Connect |
| Employer Withholding Tax | Comptroller of Maryland | Request on the CRA when you will withhold Maryland income tax from employees |
8. Additional Resources For Registration and Forms
- Maryland Tax Connect Portal
- Comptroller of Maryland - Combined Registration Application
- Maryland Business Express - Apply for Maryland Tax Accounts and Insurance
- IRS - Apply for an Employer Identification Number (EIN) Online
- Maryland Department of Assessments and Taxation
Maryland Combined Registration: Conclusion
Using the Combined Registration Application simplifies getting a Maryland State Tax ID and associated tax accounts for new and existing businesses.
Prepare your FEIN and SDAT number, choose the registration method that fits your timeline, and keep records of confirmation numbers and account details for compliance and smooth operations.
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