HAT Accounting is a reputable accounting firm based in Ottawa, managed by former professionals from Big Four firms, offering specialized financial services to small and medium-sized enterprises. Our experienced accountants in Ottawa focus on bookkeeping, payroll management, and virtual CFO services, ensuring your business remains compliant, profitable, and able to grow. We proudly serve clients throughout Canada, the United States, and internationally using secure, cloud-based accounting systems. Whether you are a startup, a non-profit, or an established business, HAT Accounting merges Big Four expertise with personalized local support to provide dependable and strategic financial advice.