Montana CPA, Business, and IT Experts | Anderson ZurMuehlen

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Our passion is to improve the lives of the people we work with by simplifying consulting and outsourced services. How can our Montana CPAs, business advisors, and tech experts help you?

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CPA & Accounting Services

Our Montana-based team of CPAs and accountants is here to support you in your personal and business accounting needs:

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Outsourced Business Services

Our team of AZ professionals provides clients with automated back-office outsourced services powered by AZ Leverage ^TM.

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Wealth Management Services

Less than 50% of Americans are prepared for retirement. We've partnered with Avantax ^SM to create a tax-smart approach to financial planning. Are you prepared for your financial future?

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Businesses Technology Services

Technology changes so quickly, it can be difficult to keep up. Our team of technology experts is ready to tackle your technology needs:

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who we are

We Pride Ourselves in Employing Exceedingly Talented Professionals

When you choose AZ, you’re choosing a deep bench of industry experts dedicated to providing the best Montana CPA and technology services to businesses.

meet our shareholders

What People Are Saying About AZ

Great partnership with high ethical standards and a wide variety of services offered. AZ has been outstanding to have as a business partner. The relationship formed goes much further than just another year end tax filing.

Libbey Winderl

Google Review

I am an employee of AZ and am proud of their continued recognition, from AICPA, NASBA, 20 Under 40, the Governor’s Equal Pay for Equal Work Task Force and many more. To top it off, I also get to serve absolutely amazing clients every day.

Amy Cristaldi

Missoula Office

AZ has saved us a bundle of money and most of all relieved any anxiety about money issues. They keep us up to speed on our LLC as well as personal tax issues. Their advice on structuring ourselves wisely for retirement is invaluable.

Tony Marchi

Google Review

I am an employee at the Anderson ZurMuehlen Missoula office and am so impressed with the leadership of this office. They care about the wellbeing of their employees, as well as the quality of work they are delivering to clients. Truly a stellar group!

Maddie Starke

Helena Office

Latest News

Our Montana CPAs, business advisors, and technology experts are dedicated to delivering valuable information and resources to you. Read our latest:

Form 1040-NR

Foreign Bank and Financial Accounts (FBAR) Reporting Requirements

FBAR reporting requirements can include obscure types of accounts. We recommend connecting with an accountant to learn how FBAR affects you.

Opportunity Zones

Implications of Negative Net Discount Rates

On Wednesday, we learned prices in June increased […]

QuickBooks Privacy Settings

Increased Mileage Rates Result from Skyrocketing Gas Prices

The IRS increased mileage rates by 4 cents per mile for the final six months of 2022 according to Announcement 2002‐13.

Our Awards & Affiliations

Montana CPA Regional Leader

Montana CPA Best Accountants in Billings

AICPA Nonprofit Accounting Certification

Montana CPA Data Analytics

Montana CPA Fundamental Client Accounting Advisory Services