Maryland CRN

If you’re doing business in Maryland, you may need a Combined Registration Number (CRN) to register for various state tax and insurance accounts.

What does the CRN cover?

Maryland’s Combined Registration Application (CRA) lets you register for:

• Sales & Use Tax

• Employer Withholding

• Unemployment Insurance

• Admissions & Amusement Tax

• Tire Recycling Fee

• Alcohol & Tobacco Taxes

• Transportation Network Company

• Motor Fuel Tax

• Transient Vendor License

You can apply online through Maryland Business Express, or by paper using Form CRA.

What you’ll need:

• A Federal EIN is required—unless you're a sole proprietor applying only for a sales & use tax license.

Heads up:

Your CRN is an 8-digit number, but don’t confuse it with your SDAT Department ID, which includes a letter followed by 8 digits. They’re not the same!