Maryland Office of the Comptroller

Mar 21, 2025

Access the Maryland Office of the Comptroller here.

The Maryland Office of the Comptroller is a state agency responsible for overseeing tax collection, revenue management, and financial reporting in the state of Maryland. As a key player in ensuring compliance with state tax laws and regulations, the Comptroller's office plays a crucial role in maintaining the financial stability and integrity of Maryland.

Agency Accounts

Maryland Withholding Tax Account

Access your online accounts:

The Maryland Withholding Tax Account allows you to set up and manage the following information:

  • Withholding Tax Account Number (same as CRN)
  • Initial Withholding Tax Filing Frequency

Find out more on how to stay compliant with the Maryland Office of the Comptroller:

Review your compliance risks, free.

More from the blog

Learn how to keep your business compliant in all 50 states across payroll, HR, Secretary of State, and tax.

The Convenience of the Employer Rule and COE States

In recent years, remote work has transitioned from a niche option to a mainstream work mode, supercharged by the COVID-19 pandemic. This shift has changed where we work and how states collect taxes, introducing new challenges for employers and employees. Enter the “convenience of the employer” rule, a regulation that, while aiming to simplify tax issues, has introduced the potential for double taxation for remote workers. Let’s discuss this rule’s impact and what it means for the modern workplace.

Kaitlin Edwards | May 9, 2024

CCPA Compliance Checklist for Consumer Data Rights 2024

As a business owner, you have a responsibility to protect sensitive customer information. Data is very valuable, and people have serious concerns about the safety and privacy of their data. The CCPA was created to empower consumers by giving them better control over the usage of their data that may be collected, used, stored, shared, or sold. Here’s what your business should know about CCPA compliance and how Mosey can help you keep your data collection practices above board.

Alex Kehayias | Jul 16, 2024

Ohio CAT Tax: Rates, Filing, and Due Dates (2024)

The business world moves fast, and Ohio isn’t standing still. If you’re running a business in the Buckeye State or have employees there, you’ve probably heard about the Ohio Commercial Activity Tax (CAT). It’s not exactly new, but the rules of the game are about to change significantly. Starting January 1, 2024, Ohio rolled out major revisions to the CAT, and if you’re not paying attention, you could miss out on some serious savings or even get caught off guard by unexpected tax bills.

Gabrielle Sinacola | Aug 7, 2024

Ready to get started?

Schedule a free consultation to see how Mosey transforms business compliance.