Colbert Ball Tax Service Get Your Taxes Done Right! Colbert/Ball Tax Service has been in business for over 20 years. With over 283 locations, we are the fourth largest franchised tax preparation company in the United States. Colbert/Ball Tax Service provides tax preparation for individuals and small local businesses. Preparing your own federal income tax return can be complicated and confusing. Our seasoned and well-trained professionals will help your income and financial obligations make sense. We are passionate about serving our... read full review »