Centenal Tax Group – Folsom, CA. At Centenal Tax Group, we exist because we help people and solve complex problems. Centenal is a rapidly expanding professional services firm with over 150 collective years of expertise in tax preparation and planning, bookkeeping and accounting, taxing authority audit defense, assurance, and advisory services. We have locations across California—including Orange County, with our corporate office in Folsom. Centen...