Where expertise meets relationship and results
Our Expertise and Approach
Lanphier CPAs is a seasoned accounting and tax firm serving individuals, small businesses, and mid-sized businesses in the Denver Metro area. We believe in providing sophisticated solutions with a personal touch, leveraging our expertise to empower our clients and guide them towards financial success. We are committed to open communication, strategic planning, and fostering strong client relationships.
Who We Are
Born from a father-son duo, Lanphier CPAs carries the values of tradition and expertise forward. Dennis M. Lanphier, CPA, brings over 40 years of experience to the firm, alongside his son Brittany S. Lanphier, CPA. Together, they have assembled a team of talented professionals who share their passion for delivering exceptional client service.
Our Services
We provide a comprehensive range of accounting, tax, and advisory services, including:
- Tax Planning & Compliance: Comprehensive tax preparation and guidance for individuals, small businesses, and estates.
- Accounting & Bookkeeping: From basic bookkeeping to complete financial statement preparation and analysis.
- Business Advisory: Strategic planning, financial consulting, and risk management services to maximize efficiency and profitability.
- International Tax Expertise: Assistance with international tax compliance, foreign asset reporting, and expat taxation.
- Audit & Controversy Support: Representation before the IRS for audits, appeals, and tax court petitions.
Client-Focused Approach
Our clients are at the heart of everything we do. We take the time to understand your unique needs, goals, and challenges. We provide clear communication, regular updates, and accessible support throughout the process.
What Sets Us Apart
- Holistic Approach: We combine accounting, tax, and advisory services for a holistic approach to your financial well-being.
- Personalized Service: We build strong relationships with our clients and prioritize open communication.
- Advanced Expertise: Our team boasts extensive knowledge and experience in diverse areas, including international taxation and IRS controversy.
- Client-Centric Philosophy: We prioritize understanding your needs and delivering tailored solutions with your best interests in mind.

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