| Number |
Title |
Description |
| 500 |
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. |
| 500LU |
Maryland Legislative Updates Addition/Subtraction Modifications |
This Form may be used to report income modifications applicable to tax year 2020 that are enacted during the 2021 legislative session, including changes from the Recovery for the Economy, Livelihoods, Industries, Entrepreneurs, and Families (RELIEF) Act of 2021 (SB496/Ch.39). |
| 500CRW |
Business Income Tax Credits |
Form used to claim selected business tax credits against corporation or personal income tax. An electronic return must be submitted to claim a business tax credit on Form 500CR. Maryland Form 500CRW Waiver Request for Electronically Filing Form 500CR must be submitted in order to file a paper version of Maryland Form 500CR. |
| 500D |
Declaration of Estimated Corporation Income Tax |
Form used by a corporation to declare and remit estimated income tax for tax year 2020. |
| 500DM |
Decoupling Modification |
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. |
| 500E |
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. |
| 500UP |
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. |
| 502S |
Maryland Heritage Structure Rehabilitation Tax Credit |
502S is used to calculate allowable tax credits for the rehabilitation of certified rehabilitation structures completed in tax year 2020. You must file your tax return electronically to claim a Heritage Structure Rehabilitation Tax Credit on a corporation or PTE return. |
| Number |
Title |
Description |
| 510 |
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 2020. |
| 511 |
Maryland Pass-Through Entity Election Income Tax Return |
Form used for filing pass-through entity electing income tax return for the calendar year or any other tax year or period beginning in 2020 |
| 510C |
Maryland Composite Pass-Through Entity Income Tax Return |
Pass-Through entities may use Form 510C to file a composite income tax return on behalf of eligible nonresident individual members. Nonresident members other than individuals may not participate in the composite return. |
| 510D |
Declaration of Estimated Pass-Through Entity Tax |
Form used by a pass-through entity to declare and remit estimated tax for tax year 2020. |
| 510E |
Application for Extension to File Pass-Through Entity |
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. |
| 510 Schedule K-1 |
Maryland Pass-Through Entity Members Information |
Use Form 510 (Schedule K-1) to report the distributive or pro rata share of the member's income, additions, subtractions, nonresident tax and credits apportioned to Maryland. |