Important Reminders for Corporations

Use FEIN

Remember to enter your federal employer identification number (FEIN) on the Maryland corporation tax return and other forms.

Use Activity Code

Be sure to enter the business activity code number on Form 500.

Correspondence

Indicate the following on all correspondence and payments:

• Corporate name
• FEIN
• Tax type
• Tax year

Tax credits

Businesses that claim a credit for the rehabilitation of a heritage structure must complete Form 502H for the Heritage Structure Rehabilitation Tax Credit. For more information about tax credits, see Business Tax Credits.