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Your Trusted Tax Advisory Partner in Denver
CPA Firm Denver combines strategic tax advisory, accounting, and legal services to deliver comprehensive solutions for businesses and individuals. Our firm prioritizes proactive planning, personalized relationships, and cutting-edge technology to simplify complex financial challenges. With expertise in international tax, IRS controversy resolution, and small business advisory, we empower clients to achieve long-term financial efficiency. Our team of CPAs, tax professionals, and legal experts collaborates to provide tailored guidance, ensuring clients feel confident in their financial decisions.Founded on principles of integrity and responsiveness, we serve over 500 clients nationwide, offering a unique blend of big-firm expertise and small-firm accessibility. Our advisory-first approach transforms tax preparation into a seamless process, while our maintenance agreements ensure predictable, year-round support. Recognized for pioneering individual tax planning and cross-border compliance, we are committed to delivering exceptional value through transparent communication and ethical practices.
Services
Tax Preparation
Tax Consulting
Accounting Services
International Tax
Tax Controversy
Highlights and features
- We offer 24/7 responsiveness for urgent client needs.
- Our team includes CPAs, tax attorneys, and international tax specialists.
- We provide proactive tax planning to optimize long-term financial outcomes.
- Our maintenance agreements ensure predictable costs and year-round support.
- We specialize in complex international tax compliance and reporting.
What people say
Responsive
Knowledgeable
Proactive
Thorough
Professional
Services
Tax Preparation
Our advisory-first approach transforms tax preparation into a seamless process. We prepare returns for businesses, individuals, and trusts using cutting-edge technology to ensure accuracy and efficiency. Our proactive planning minimizes liabilities while maximizing compliance, with specialized expertise in complex scenarios like international tax and IRS disputes.
Tax Consulting
We provide proactive tax consulting to optimize financial strategies. Our team works year-round to implement tax-efficient structures, address compliance challenges, and align financial goals with tax planning. Services include entity selection, cash flow optimization, and cross-border tax strategy for businesses and high-net-worth individuals.
International Tax
Specializing in U.S. international tax regulations, we assist businesses and individuals with outbound and inbound tax compliance. Services include foreign asset reporting, FATCA compliance, expatriate tax planning, and coordination with global partners to navigate complex cross-border transactions and reporting requirements.
Tax Controversy
Our firm resolves IRS disputes through audits, appeals, and litigation. We represent clients in tax court petitions, unfiled returns, and penalty abatements, combining technical expertise with procedural knowledge. Our goal is to minimize liabilities while ensuring compliance through transparent, ethical representation.
Accounting Services
We offer outsourced accounting solutions including bookkeeping, financial statement preparation, and QuickBooks training. Our services ensure accurate financial records to support tax planning and business decisions, with specialized support for multi-currency and international reporting needs.
People
Brittany S. CPA Firm Denver
Managing Partner
CPA with expertise in tax advisory and small business accounting. Leads client relationships and strategic planning, focusing on proactive financial solutions for businesses and individuals.
Dennis M. CPA Firm Denver
Tax & Legal Partner
CPA, attorney, and LL.M. specialist in international tax and IRS controversies. Combines legal and accounting expertise to resolve complex tax disputes and cross-border compliance challenges.
Chris T. Baker
Tax Services Manager
EA with focus on business tax compliance and advisory services. Assists clients with strategic tax planning, entity selection, and year-round tax optimization strategies.
Phoebe E. Coffin
Tax Services Manager
CPA specializing in individual tax planning and international tax compliance. Provides tailored solutions for high-net-worth individuals and cross-border tax scenarios.
Kenna R. Eber
Accounting Services Manager
Manages accounting operations and outsourced bookkeeping services. Ensures accurate financial reporting to support tax planning and business decision-making for clients.
Questions
What services does Lanphier offer?
We provide tax preparation, consulting, international tax compliance, IRS dispute resolution, and accounting services for businesses and individuals.
Do you work with international clients?
Yes, we specialize in U.S. international tax regulations, assisting with outbound/inbound tax compliance, foreign asset reporting, and cross-border transactions.
How are fees structured?
We use annual maintenance agreements for predictable costs, with one-time onboarding fees for new client advisory services.
Can you help with IRS audits?
Yes, our team represents clients in IRS audits, appeals, and tax court petitions, combining technical and procedural expertise.
What sets Lanphier apart from other firms?
We combine big-firm expertise with personalized service, offering proactive planning, 24/7 responsiveness, and specialized international tax knowledge.
