Apply for a Maryland Business Tax Account - Combined Registration Application
Before proceeding to the combined registration application to apply for or update a business, you have the option to view our instructional user guide and video tutorial found at the links below.
Before proceeding to the Maryland Tax Connect account registration, you have the option to view our instructional user guides and video tutorials found at the links below.
Before proceeding to Register as a Government User, you have the option to view our instructional user guide and video tutorial found at the links below.
Maryland Sales and Use Tax Exemption Certificate Application
Before proceeding to complete a Sales and Use Tax Exemption Certificate Application, you have the option to view our instructional user guide found at the link below.
Maryland Tax Connect will be unavailable on Wednesday, October 22, 2025, from 9:00 PM to 11:00 PM for scheduled maintenance. During this time, you will be unable to perform any Maryland Tax Connect functions. Important Notice: If you recently experienced technical difficulties when filing a return or attempting to make a payment, you will not be charged penalties and interest on returns with a due date falling between October 15, 2025 and November 11, 2025 if the returns and payments are received by November 12, 2025. We are actively working to resolve the recent technical issues and appreciate your patience while we work through them.
New to filing Maryland Sales tax? Visit our 2025 Tax Updates webpage for all you need to know about filing. Attention Businesses requesting a Multiple Points of Use Certificate! You can now apply for an MPU certificate by clicking the Apply for a MPU Certificate link located in the Quick Links box below. If this is your first time applying for an MPU certificate, you must have an active sales tax account in good standing and you must use the application link located in the Quick Links box. For step-by-step instructions visit our Multiple Points of Use Certificate (MPU) Application User Guide.