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406-792-1982

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Tax Advisory & Business Consulting

406-792-1982
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Mason CPA, P.C. is a public accounting firm located in Billings, MT with a specialization in business, individual, and fiduciary taxation.

With years of experience in the field, the team at Mason CPA, P.C. provides expert tax planning, preparation, and consulting services to help clients navigate the complexities of tax laws and regulations.

Whether you are a small business owner, individual taxpayer, or trustee in need of fiduciary tax services, Mason CPA, P.C. is dedicated to providing personalized solutions to meet your unique tax needs.

Our experience and services includes:

-Trusts and Estates

-Passthrough Entities

-Corporations

-Individuals

No matter how large or small your tax needs are, Mason CPA, P.C. will make the process seamless and simple!

Our Services | Tax, Accounting, Payroll and Consulting in Billings, MT

Business Consulting
Business Consulting
Move your business forward with strategic advisory services from Mason CPA, P.C. We help Billings entrepreneurs improve profitability, manage cash flow, plan for taxes, and make informed financial decisions. Whether you’re just starting out or scaling up, our team is your trusted advisor at every stage.
Tax Filing
Tax Filing
At Mason CPA, P.C., we provide accurate and efficient tax preparation services for individuals and businesses in Billings, MT. Our team stays current on tax laws to maximize your deductions and minimize liability. Whether you're filing a simple return or a complex business return, we make tax season stress-free. Trust us to help you file with confidence.
Tax Planning
Tax Planning
Plan ahead and keep more of what you earn with strategic tax planning services from Mason CPA, P.C. Based in Billings, MT, we help individuals and businesses minimize tax liabilities through proactive strategies tailored to their unique financial goals. From retirement planning to entity restructuring, we make sure you're positioned for maximum savings year after year.
Audit Representation
Audit Representation
Facing an IRS audit or tax issue? Mason CPA, P.C. offers experienced IRS representation for individuals and businesses in Billings, MT. We work directly with the IRS on your behalf, helping resolve audits, back taxes, penalties, and disputes. Let us protect your rights and guide you toward the best possible outcome.
Compliance
Compliance
Stay compliant and avoid penalties with expert tax compliance services from Mason CPA, P.C. We help Billings, MT businesses and individuals navigate complex federal, state, and local tax regulations with accuracy and confidence. From preparing required filings to meeting important deadlines, our team ensures you stay in good standing and focused on what matters most.
Accounting Services
Accounting Services
Stay organized and save time with bookkeeping services from Mason CPA, P.C. We help Billings, MT businesses maintain clean, up-to-date financial records, giving you better insights and fewer surprises at tax time. From monthly reconciliations to detailed reporting, we tailor our bookkeeping solutions to meet your unique business needs.
Payroll Services
Payroll Services
Mason CPA, P.C. simplifies payroll for businesses in Billings, MT. We offer reliable payroll processing, tax filings, and compliance management so you can focus on growing your company. Our customized payroll services ensure your employees are paid accurately and on time while meeting all local, state, and federal requirements.
Entity Structure & Formation
Entity Structure & Formation
Starting a business? Mason CPA, P.C. helps entrepreneurs in Billings, MT choose the right business structure for tax efficiency and legal protection. We guide you through entity selection—LLC, S-Corp, Partnership, or C-Corp— so you can focus on launching your dream.
Transaction Advisory Services
Transaction Advisory Services
Make smarter business moves with transaction advisory services from Mason CPA, P.C. Whether you're buying, selling, or merging a business in Billings, MT, our experienced team provides the financial insights and tax strategies you need to protect your investment. We guide you through every phase of the deal—valuation, due diligence, tax structuring, and post-transaction planning—so you can move forward with confidence.
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Contact Mason CPA, P.C.

Get in touch with Mason CPA, P.C. for expert tax and accounting services in Billings, MT and Yellowstone County. Call or request a consultation online.

406-792-1982

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406-792-1982

Our client portal allows you to securely access and upload important tax documents from anywhere, at any time.

Easily review and download your tax returns, financial statements, and other important documents all in one secure location.

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Mason CPA, P.C.
3300 Central Ave, Suite D, Billings, MT 59102
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About the Firm

Derrek Mason founded the firm in 2025 with the goal of making taxes easy for everybody. Prior to founding Mason CPA, P.C., Derrek worked for years at a national accounting firm, working on large, multi-state entities and fiduciary taxes. Prior to that, he worked for a boutique firm offering specialized services based out of Portland, Oregon.

Mason CPA, P.C.

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