||Maryland Corporation Income Tax Return
||Form used by a corporation and certain other organizations to file an income tax return for a specific tax year or period.
||Business Income Tax Credits
||Form used to claim selected business tax credits against corporation, personal or fiduciary income tax, or employer withholding tax (tax-exempt organizations only).
|500D - 2009
500D - 2010
|Declaration of Estimated Corporation
||Income Tax Form used by a corporation to declare and remit estimated income tax when the preprinted Form 500DP is unavailable.
||Form used to determine the amount of addition and subtraction modifications that are required as a result of Maryland's decoupling from certain federal provisions listed on the form.
||Application for an Extension to File Corporation Income Tax Return
||Form used to apply for an extension of time to file the corporation income tax return, and to remit any tax that may be due.
||Report of Maryland Multistate Manufacturing Corporation
||Form used by corporations that have more than 25 employees, apportion their income under the single sales factor, and are required to file information reports with the Comptroller of Maryland. The form serves to provide the comparison between using a single-factor apportionment formula and the three-factor formula that was required prior to January 1, 2001, as described in statute and regulation.
||Job Creation and Recovery Tax Credit
||Form and instructions used to apply for a tax credit for businesses that operate or conduct business in Maryland and hire certain workers for newly-created or certain vacant positions in Maryland.
||Underpayment of Estimated Income Tax by Corporations and Pass-Through Entities
||Form and instructions used by corporations or pass-through entities to calculate the amount of interest and penalty for failure to pay the required amount of estimated income tax when due.
|500X - 2007
||Amended Corporation Income Tax Return (For tax years beginning prior to January 1, 2008)
||Form used by corporations to correct an error in a Form 500 filed for tax years beginning prior to January 1, 2008, or to claim a net operating loss (NOL) deduction.
|500X - 2008
||Amended Corporation Income Tax Return (For tax years beginning in 2008)
||Form used by corporations to correct an error in a previously filed 2008 Form 500, or to claim a net operating loss (NOL) deduction.
|500X - 2009
||Amended Corporation Income Tax Return
||Form used by corporations to correct an error in a previously filed 2009 Form 500 or to claim a net operating loss (NOL) deduction.
||Pass-Through Entity Tax Return
||Form used for filing pass-through entity income tax return for the calendar year or any other tax year or period beginning in 2009.
|510D - 2009
510D - 2010
|Declaration of Estimated Pass-Through Entity Tax
||Form used by a pass-through entity to declare and remit estimated tax.
||Application for Extension to File Pass-Through Entity
||Income Tax Return Form used to apply for an extension of time to file the pass-through entity income tax return, and to remit any tax that may be due.
||Distributable Cash Flow Limitation Worksheet (for Form 510)
||Form used by pass-through entity filers to determine the distributable cash flow limitation for nonresident members.