Montana Department of Revenue

Oct 1, 2025

Access the Montana Department of Revenue here.

The Montana Department of Revenue is the state agency responsible for overseeing tax collection, property assessment, and other revenue-related functions in the state of Montana. With a focus on ensuring compliance with state tax laws and regulations, the department works to support a fair and efficient tax system for residents and businesses in Montana.

Agency Accounts

Montana Corporate Income Tax Account

Access your online account via TransAction Portal.

The Montana Corporate Income Tax Account allows you to set up and manage the following information:

  • Corporate Income Tax Account ID

Montana Withholding Account

Access your online account via TransAction Portal.

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

  • Withholding Account Number

Find out more on how to stay compliant with the Montana Department of Revenue:

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.

Right-To-Work States 2024: What Are They and How It Works

Employment law can feel overwhelming with all its terms, rules, and exceptions. One term you may have come across is “right-to-work.” What exactly does it mean, and how does it affect both employers and employees in 2024? Right-to-work laws impact whether or not employees can be required to join a union or pay union dues as a condition of employment. It’s a hot topic, especially for businesses that hire in multiple states and employees who want to understand how these laws protect or limit their rights.

Alex Kehayias | Oct 20, 2024

PEO Benefits: When, Where, and How They Work Best

For many smaller or growing businesses, managing HR functions can be a significant challenge. Professional Employer Organizations (PEOs) offer a solution by handling payroll, benefits, compliance, and other HR responsibilities through a co-employment arrangement. While PEOs provide valuable services that help businesses focus on growth, it’s important to understand both their advantages and limitations. Today, we’re exploring the benefits PEOs offer, who they work best for, and when companies might consider alternatives as their needs change.

Paul Boynton | Apr 7, 2025

Annual Tax for LLC in California: How Much Is It and When Is It Due?

Every limited liability company (LLC) operating out of California has to pay certain taxes and fees. Whether you’re a controller overseeing compliance across states or a business entrepreneur, you should know these rules like the back of your hand. This guide explains what you can expect from California LLC taxes and how to stay on top of corporate compliance with Mosey.

Kaitlin Edwards | Oct 17, 2024

Ready to get started?

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