Fondahn CPA is a Walla Walla, WA accounting firm serving individuals, small businesses, and startups. Its work includes tax preparation, tax planning, bookkeeping, payroll management, and support with IRS notices and audit matters. The firm also describes services for employees, business owners, retirees, startups, growing companies, and established businesses.

The practice offers personal and business accounting as well as trust, estate, and consulting support, including fiduciary accounting and estate-related wealth management. Source materials identify Joe Fondahn as a CPA and MBA and note advisory services through Advantus Group, LLC dba Fondahn Financial. Clients can work with the firm in person or remotely, and QuickBooks is listed among its software tools.