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Your Trusted Tax and Accounting Partner in Denver
At CPA Firm Denver, we combine sophisticated tax advisory services with personalized client relationships to deliver strategic solutions for businesses and individuals. Our firm specializes in proactive tax planning, accounting, and legal services, emphasizing three core goals: maximizing tax efficiency, mitigating taxpayer risk, and enhancing clarity in financial decision-making. With a focus on small and mid-sized businesses, we provide tailored support through our signature services, Business Best Practices and Individual Tax Fundamentals, while maintaining expertise in complex areas like international tax and IRS controversy.Our team of CPAs, attorneys, and tax professionals brings decades of combined experience, ensuring clients receive technically sound, defensible tax strategies aligned with their unique needs. We pride ourselves on responsiveness, ethical practices, and a commitment to simplifying tax complexities for clients nationwide.
Services
Tax Preparation
Accounting Services
Tax Consulting
Bookkeeping
International Tax
Legal Services
Tax Controversy
Financial Statement Prep
QuickBooks Training
IRS Representation
Highlights and features
- We offer 24/7 responsiveness for urgent client needs.
- Our team combines CPA and legal expertise under one roof.
- Specialized in international tax compliance and IRS disputes.
- Full-service approach integrating accounting, tax, and advisory.
- Proven track record with small businesses and startups.
Associations and certifications
- Certified Public Accountants (CPA)
What people say
Highly responsive
Top-notch expertise
Great resource
Peace of mind
Excellent team
Services
Tax Preparation
Comprehensive tax preparation for individuals and businesses, ensuring compliance with federal and state regulations. Our team handles complex filings, including international tax obligations and trust/estate returns. We prioritize accuracy and strategic optimization to minimize liabilities while maintaining defensible positions.
International Tax
Specialized services for cross-border tax compliance and planning. We assist businesses and individuals with outbound/inbound tax strategies, expat taxation, foreign asset reporting, and FATCA compliance. Our expertise addresses dual-status taxpayers and complex international bookkeeping needs.
Tax Controversy
Representation in IRS audits, appeals, and tax court petitions. Our approach combines technical expertise with proactive documentation to resolve disputes efficiently. We defend tax positions while minimizing audit risks and ensuring compliance with evolving regulations.
Accounting Services
Full-service accounting solutions including outsourced bookkeeping, financial statement preparation, and QuickBooks training. We provide tailored support for businesses of all sizes, ensuring accurate records and timely reporting to support strategic decision-making.
Legal Services
Integrated legal support through Dennis M. Lanphier, P.C., offering entity formation, contract review, and tax litigation. This service complements our accounting expertise, providing holistic solutions for business disputes, compliance, and cross-border legal matters.
People
Brittany S. Lanphier
CPA
Experienced CPA with expertise in small business accounting and tax advisory. Leads client relationships with a focus on proactive planning and financial clarity. Recognized for innovative approaches to tax efficiency and client education.
Dennis M. Lanphier
C.P.A., Esq., LL.M.
Dual-qualified CPA and attorney specializing in tax controversy and international tax law. Provides strategic legal and accounting solutions, with a focus on IRS disputes and cross-border compliance. Combines technical depth with practical business insights.
Chris T. Baker
EA
Enrolled Agent with extensive experience in tax compliance and advisory services. Supports clients in navigating complex tax regulations while maintaining a client-focused approach to problem-solving and financial planning.
Phoebe E. Coffin
CPA
CPA specializing in individual and business tax planning. Known for attention to detail in compliance matters and delivering personalized strategies that align with clients' long-term financial goals.
Jared S. Akin
E.A.
Enrolled Agent focused on tax preparation and advisory services for small businesses. Brings technical proficiency and a commitment to simplifying tax complexities for entrepreneurs and startups.
Questions
What services does Lanphier LLP offer?
We provide tax preparation, accounting, international tax compliance, IRS dispute representation, and legal services through our affiliated law firm.
Do you specialize in international tax matters?
Yes, we're one of Colorado's few small firms specializing in outbound/inbound international tax, expat taxation, and foreign asset reporting.
Are you available for urgent tax issues?
Yes, we offer after-hours support for urgent client needs and prioritize timely responses to tax emergencies.
How do you handle IRS audits?
Our team provides comprehensive audit defense, including documentation preparation, IRS communication, and appeals representation to protect client interests.
What industries do you serve?
We work with construction, real estate, startups, healthcare, law firms, and professional services businesses, including international operations.
