When people search for a "MD tax ID number," they are usually looking for a property account ID for a piece of real estate, rather than an Employer Identification Number (EIN). The SDAT Real Property Data Search provides this as a combination of a district code and an account identifier (referred to as "account ID" below).
Which ID are you looking for?
| Target |
ID |
Where to grab it |
| Look up property tax details |
Property account ID — district + account identifier |
SDAT record, county tax portal, prior tax bill |
| Check a company’s Maryland registration record |
State entity ID — listed as “Department ID” |
Maryland’s business entity search |
| File federal taxes for a business |
EIN |
IRS notices or prior federal returns |
How do you find a property MD tax ID number by address?
- Go to the SDAT Real Property Data Search & pick your county
- Select “Street Address” then type the street number & name
- Click the correct match from the results
- Copy the property account ID from the page
- Paste that ID into the county portal or compare it to an old bill
What if the address search shows more than 1 match?
Look at an extra detail — like a unit number or deed book/page — to confirm the correct parcel record before proceeding.
What if you meant a Maryland business tax ID instead?
For companies, an "MD tax ID" might mean a state entity ID, a state account number or a federal EIN.
- Department ID (SDAT) — look up the company name in the Maryland official entity search & copy the Department ID
- Maryland state accounts — sales, withholding) — Maryland Tax Connect lets taxpayers link a profile & view the numbers attached to it
- CRN for employer withholding — the state employer withholding guide states that the CRN will show up on official forms & letters
Watter CPA stands ready to help
If this ID lookup is connected to a property sale, rental reporting, or an estate & business setup, Watter CPA can present assistance in tying the record to the right tax work.
Contact us for:
- Property and business record review
- State account setup support
- Reporting support for ownership changes
