Experienced Team · Serving Clients Nationwide

    Deep Experience in Accounting and Tax

    Years of guiding businesses through every economic cycle, every tax law overhaul, and every growth phase. Experience you can feel in every conversation, every return, and every strategic decision.

    (720) 603-9700

    Why Experience Actually Matters

    Anyone can prepare a tax return. Software does most of the math. What software cannot do, and what a junior preparer cannot replicate, is recognize the pattern. Over years of practice, we have seen virtually every business situation, every IRS notice, every entity restructuring scenario, and every industry-specific quirk you can imagine. When something unusual lands on your desk, we have almost certainly handled it before.

    That depth shows up in three places. First, in strategic decisions, choosing the right entity structure, timing income and deductions, navigating multi-state nexus, planning an exit, or structuring a real estate deal. Second, in compliance work, catching the small issues that become big problems, building reconciliations that actually reconcile, and preparing returns that hold up under scrutiny. Third, in representation, when the IRS or a state agency comes calling, you want someone who has walked into hundreds of those conversations and knows exactly what to say, what to provide, and what to push back on.

    That is what deep experience buys you. Not just a longer list of credentials, a calmer, more accurate, more strategic approach to every part of your financial life. Whether you need monthly bookkeeping, proactive tax planning, a fractional CFO, or help forming a new entity, you get the benefit of every lesson we have learned along the way.

    Our Journey

    From a single-office Colorado firm to a nationwide accounting practice trusted by businesses across every industry.

    Start

    Firm Founded in Colorado

    Centennial Accounting Group opened its doors in the Denver metro with a single focus: helping local small businesses keep clean books and file accurate tax returns. From day one, the philosophy was simple, treat every client's money like our own, and never let a deadline slip.

    Early

    Bookkeeping Practice Scales

    After steady word-of-mouth growth, we built out a dedicated bookkeeping department with monthly close processes, bank reconciliation specialists, and a standardized chart of accounts framework that still powers our clients today.

    Next

    Tax Advisory & IRS Representation

    When the financial crisis hit, our clients needed more than a once-a-year tax preparer. We expanded into year-round strategic tax planning, IRS representation, and audit defense, work that remains a cornerstone of the firm.

    Focus

    Industry Specialization Begins

    We doubled down on the verticals where we'd built the deepest expertise: real estate, construction, e-commerce, professional services, healthcare, and trucking. Today, every senior accountant on our team has multiple industry concentrations.

    Growth

    Fractional CFO Services Launched

    Growing companies began asking for more than compliance. We rolled out a full fractional CFO practice covering financial modeling, KPI dashboards, capital advisory, and exit planning for businesses scaling past M in revenue.

    Cloud

    Cloud Accounting Migration

    We led our entire client base through a transition to QuickBooks Online, Xero, and integrated app stacks, long before it became the industry default.

    National

    Nationwide Practice

    When the world went remote, we didn't skip a beat. We were already cloud-native. Today we serve clients in all 50 states from our Colorado headquarters.

    Savings

    Documented Client Savings

    Credit recovery, and CFO-level cost optimization.

    Today

    Strong & Growing

    Trusted by business clients nationwide with deep expertise across every major industry, from solo entrepreneurs to multi-entity operating groups.

    Where Our Experience Shows Up

    Every service we offer is backed by real-world execution. Click any service to learn more.

    Small Business Accounting

    Extensive experience helping startups and SMBs build solid financial foundations, from chart of accounts setup to month-end close.

    Bookkeeping & Cleanup

    Monthly closes and catch-up bookkeeping engagements rescued from the brink.

    Strategic Tax Planning

    Proactive year-round planning for individuals and businesses that produces legitimate, defensible tax reductions.

    Tax Preparation

    Personal, business, multi-state, self-employment, rental, and investment returns, prepared with the same rigor we'd apply to our own.

    Industry Specialization

    Deep expertise in real estate, construction, e-commerce, healthcare, trucking, professional services, and more.

    IRS Representation & Audit Defense

    Years of standing between clients and the IRS, examinations, appeals, collections, and resolution.

    Fractional CFO Services

    Financial modeling, capital strategy, KPI dashboards, and exit planning for growing companies.

    Business Formation & Structure

    LLC, S-Corp, C-Corp, partnership, sole prop, and nonprofit setup, chosen strategically, not by default.

    Payroll & HR Compliance

    Full-service payroll, contractor payments, payroll tax filing, and multi-state HR compliance.

    Sales Tax & Multi-State Compliance

    Registration, nexus analysis, and ongoing filing across every state where your business has obligations.

    What Experience Has Taught Us

    Relationships, Not Transactions

    Many of our clients have been with us for years. That doesn't happen by accident, it happens because we answer the phone, return the email, and remember the details that matter to your business.

    Defensible, Conservative Positions

    Years of IRS work have taught us exactly where the line is. We push hard for every legitimate deduction and credit, and never put a client in a position they can't defend.

    Continuous Education

    Tax law changes every year. Our team completes continuing professional education annually so you don't have to keep up with the latest legislation, court rulings, and IRS guidance.

    The Full Service Line We Have Built

    Our service catalog did not appear overnight. Each offering was added in response to client demand and refined over years of execution. Today, we deliver:

    Tax Services

    From simple W-2 returns to complex multi-state, multi-entity tax engagements, we handle every level of complexity.

    Bookkeeping

    Clean, current, accurate books are the foundation of every other financial decision. Our bookkeeping team has closed monthly books for clients across a wide range of industries.

    Tax Planning

    Tax preparation looks backward. Tax planning looks forward, and that is where the real savings live.

    Fractional CFO Services

    When you need executive-level financial leadership without the executive salary.

    Business Formation & Consulting

    The right entity, formed correctly, sets you up for years of tax efficiency and operational clarity.

    Payroll & Sales Tax

    Compliance work that has to be right every single pay cycle and every single filing period.

    Put Our Experience to Work for You

    Schedule a free consultation. We will review your current situation, identify the biggest opportunities, and show you exactly how a more experienced team makes a measurable difference.

    Book Your Free Consultation Call (720) 603-9700

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