Home Tax Professionals Information for Tax Professionals The Comptroller of Maryland wants to effectively assist tax preparers so they can serve taxpayers who rely on them to prepare their tax returns in accordance with the state's most recent tax laws and regulations. In this section, Maryland tax professionals can find current tax information in order to service their clients in an accurate, transparent and efficient manner. What's New for the 2023 (2022 Tax Year) Filing Season? Register for webinar: “Private Letter Ruling Regulations Preview,” Thursday, September 21, 2023 Draft Private Letter Ruling Regulations Final Regulations: Cannabis Sales and Use Tax Notice of Proposed Regulations: Alcohol and Tobacco Tax Tax Pro Helpline Tax Calculators Tax Credits Filing Deadlines & Due Dates Bfile Ifile IFTA Efile Alcohol Efile Gas Tax Holiday Information Wynne Case FAQs Wayfair Decision RELIEF Act Forms & Instructions Power of Attorney Individual Forms Individual Instruction Booklets Individual Estimated Payments Business Forms Business Instruction Booklets Business Tax Refund Forms Business Estimated Payments Change of Address Offers in Compromise Bulk W-2 Download Unclaimed Property Request Copy of Return Tax Law and Regulations Starting A Tax Preparation Business in Maryland? Federal Tax Code, Regulations, and Guidance COMAR Annotated Code of Maryland Alcohol, Tobacco, and Motor Fuel Legislative Updates State Legislative Summaries MSATP Tax Updates Identity Protection Caught in the Web Assistance Programs Taxpayer Bill of Rights and Consumer Guide Tax Publications What's New for the 2022 filing Season? Revenews Revenews Podcast Sales and Use Tax Guide Business Tax Tips Individual Tax Tips Tax Bulletins Tax Alerts Administrative Releases Tax Facts Collections Notices Admissions & Amusement Tax Notices Sales and Use Tax Notices Motor Fuel Tax Notices Tax Professional FAQ's Tax Compliance & Enforcement FAQ's Individual Tax Info Individual Income Tax Estate and Inheritance Tax Fiduciary Tax Individual Tax Credits Individual Tax Compliance Notices Tax Calculators Individual FAQ's MVA Tax Certification Where is my refund? Individual Payment Agreement Request Maryland Online Hearing Appeal Request Extension Request Business Tax Info Digital Advertising Gross Revenues Tax Business Income Tax Extension Request Sales and Use Tax Motor Fuel Tax Alcohol Tax Tobacco Tax Admissions & Amusements Tax Boxing & Wrestling Tax TNC Assessments Business Personal Property Tax Bay Restoration Fund Fee Tire Recycling Fee Business Tax Credits Employer Withholding Tables & Guides Business Tax Compliance Notices Tax Calculators Business FAQ's IFTA IFTA Decal Request Motor Fuel License Inquiry Alcohol & Tobacco Licenses and Permits Alcohol & Tobacco Credit Control Reporting Direct Debit BillPay Sales Tax Exemption Verification Combined Registration Application Vendor/Developer Info eFile for Providers Substitute Paper Forms Approved Vendors for eFile Software and Substitute Paper Tax Forms Contact Information for Vendors and Developers