About Mark A Stiles CPA, PLLC
MASCPA is a modern, virtual CPA firm specializing in fractional CFO services, strategic bookkeeping, and tax planning for growth-focused small businesses.
Rooted in our proprietary Box Method, we help business owners build a stable, scalable financial foundation by ensuring that every critical side of their “business box” — Operations, Marketing & Sales, Finance & Strategy, and People & Leadership — is fortified with clear systems and practical insight.
We go beyond compliance: MASCPA acts as your strategic partner, combining sage-level expertise with an approachable, down-to-earth style. From day-to-day bookkeeping to proactive tax strategy and high-level financial forecasting, we deliver clarity, consistency, and confidence so you can stop operating in the dark and start leading with presence.
Our mission: To demystify accounting, amplify your decision-making power, and protect your business legacy — one system, one SOP, one conversation at a time.
Services include: Fractional CFO, strategic bookkeeping, tax planning and preparation, WIP and job costing advisory (for construction and trades), and financial systems implementation.
If you’re ready to fill your box, strengthen your cash flow, and scale with integrity, MASCPA is your trusted guide.