HIATT ACCOUNTING GROUP
From annual returns to year-round adviCe, we deliver local expertise, personalized service, and financial peace of mind
Serving individuals, Families, and small businesses across the South Denver metro area
We’re here beyond tax season — an advisory you can rely on.
Proudly serving Castle Rock and surrounding communities
Family firm with over 80 years of collective experience.
Learn about our services
-
From simple annual filings to complex multi-entity tax strategies, we provide comprehensive tax preparation and planning. Whether you’re an individual navigating deductions and credits, or a business needing corporate, partnership, or multi-state returns, our expertise ensures accuracy, compliance, and strategies that minimize tax liability. We also assist with IRS representation, audits, and proactive year-round planning so you’re never caught off guard.
-
Small business owners wear many hats — let us take the financial one off your plate. We offer full bookkeeping, payroll, and accounting support to keep your operations running smoothly. Beyond compliance, our consulting services help you choose the right entity structure, analyze cash flow, build budgets, and forecast growth. Think of us as your outsourced CFO — providing the insights and tools you need to make confident business decisions.
-
Life changes bring financial questions, and we’re here to guide you through them. From planning for retirement income and Social Security, to navigating education savings, home ownership, or inheritance, we provide personalized strategies to fit your family’s goals. Our planning services help you make the most of tax opportunities, protect your assets, and prepare for the future with confidence and peace of mind.
Schedule time with us
Think of this as your opportunity to interview us as a potential new member of your financial team. We offer complimentary, no-obligation consultations designed to give you clarity and confidence about your tax and accounting needs. Whether you prefer to meet virtually or in person, this is a chance to ask questions, share your goals, and see how we can support you — with no strings attached.
Who we are
The Hiatt Accounting Group is a family-owned and operated accounting and tax advisory firm serving individuals, families, and small businesses across Colorado’s Front Range. With over 50 years of combined experience, we bring the wisdom of seasoned expertise together with the fresh perspective of a new generation.
Mark Hiatt has been advising clients for more than four decades, providing personalized and strategic business guidance that has helped countless owners navigate challenges, seize opportunities, and achieve long-term growth.
Adam Hiatt, Enrolled Agent, represents the next generation of the firm. Bringing a modern approach, he focuses on leveraging technology and streamlined processes to make tax and accounting services more accessible, efficient, and stress-free.
Together, we are more than just accountants — we’re partners in your success. Whether you’re an individual looking to minimize tax liability, a family preparing for the future, or a business owner ready to offload your accounting functions so you can focus on growth, we’re here to help.
At Hiatt Accounting Group, our mission is simple: to provide clarity, confidence, and peace of mind in all things tax and accounting. We believe tax season shouldn’t be stressful — it should be an opportunity to plan smarter, make better decisions, and move forward with confidence.
Contact Us
Interested in working together? Fill out some info and we will be in touch shortly. We can’t wait to hear from you!