Support CenterHow do I locate the MD 504 county codes? - How do i locate the MD 504 county codes?
REQUIRED
Subdivision code, incorporated subdivision, or county as of 12/31/2016. If part-year resident, enter the information as of your last day of residence if not 12/31/2016. Military who is a MD resident should fill in the physical address and county based on the address used to claim Maryland as the Home of Record with Defense Finance and Accounting Service for 2016.
See F1 help. The correct format is the 4-digit subdivision code, one space, then the name of the political subdivision, city, or town. If not in subdivision, city, or town, enter the county name.
Locate the county name and taxing area in which the taxpayer resided on the last day of the taxable period. Enter the 4-digit subdivision code, one space, then the name of the political subdivision, city, or town. If not in a subdivision, city, or town, enter the 4-digit code and county name. For example, if the taxpayer was a resident living of Allegany county, you would enter: 0100 Allegany County.
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