What Can a CPA Do for Your Small Business? As a small-business owner or manager, you have many responsibilities to ensure that your business is profitable and successful. But you don’t have to do it alone. That’s where a Certified Public Accountant (CPA) can be an essential partner: A CPA can help you establish effective business operations and plan for profitability. In addition, a CPA can assist you in setting short- and long-term strategies tailored to your business.