Home Business Taxes Business Income Tax Employer Withholding 2021 Withholding Forms 2021 Employer Withholding Forms Instruction Booklets Note: The instruction booklets listed here do not include forms. Forms are available for downloading in the Employer Withholding Forms section below. Booklet Title Description 2021 Maryland Employer Reporting of W-2s Instructions and Specifications Instruction and Specifications Booklet for 2021 Maryland Employer Reporting of W-2s To be used as a companion to the Social Security Administration Publication No. 42-007 EFWS Tax Year 2021. This booklet highlights the special requirements of the Maryland program. 2021 Maryland Employer Reporting of 1099s Instructions and Specifications 2021 Maryland Employer Reporting of 1099s Instructions and Specifications To be used as a companion to Publication 1220 for tax year 2021 including specifications for filing forms 1098, 1099, 5498 and W-2G magnetically or electronically, and highlights the special requirements of the Maryland program. Employer Withholding Guide Maryland Employer Withholding Guide Instructions for complying with the requirements for withholding Maryland income tax as required by law. Employer Withholding Forms Number Title Description MW508 Annual Employer Withholding Reconciliation Return Form used by employers to reconcile their withholding accounts and W-2 and 1099 data. MW506A Employer's Return of Income Tax Withheld - Amended Form used by employers to amend their employer withholding reports. MW506AM Employer's Return of Income Tax Withheld for Accelerated Filers - Amended Form used by employers filing on an accelerated basis to amend their employer withholding reports. MW506FR Maryland Employer Withholding - Final Return Form used by employers who have discontinued or sold their business. To be mailed with the MW506 or MW506M. Mail separately if filed electronically. MW507 Employee's Maryland Withholding Exemption Certificate Form used by individuals to direct their employer to withhold the correct amount of Maryland income tax from their pay. MW507P Annuity and Sick Pay Request for Maryland Income Tax Withholding Form used by recipients of annuity, sick pay or retirement distribution payments that choose to have Maryland income tax withheld from each payment. MW508CR Business Income Tax Credits Form and instructions for non-profit 501(c)(3) organizations only to claim any business income tax credits for which they may be eligible.