We work with you on a personal level to determine the best solutions for your unique needs, then leverage our seasoned expertise to achieve the best possible results.


We are your trusted partner in success. Our firm is large enough to offer a full range of professional services at a fair price, but small enough to give you the individual attention that you deserve.


Rest assured that when a need arises, our firm is ready and capable to handle everything for you so you can focus on what matters most to you.

Staff Profiles

LeAnn Killman, the CEO of A-Plus Accounting Service, LLC since 1990, graduated from Northeastern State University in 1986 with a degree in Accounting and a degree in Business Administration. After passing a rigorous exam given by the IRS, she obtained her Enrolled Agent (EA) license in 2004. She has been a member of the Oklahoma Society of Accountants since 2000. She also holds membership in the Northeast (Tulsa) Chapter of the Oklahoma Society of Accountants and the National Society of Accountants.

Stephanie Baughman, an associate at A-Plus Accounting Service, LLC since 2011, graduated in 2000 from Northeastern State University with a Bachelor’s degree double major in Business Administration and Accounting. She was a student pilot member of the AICPA and on the dean’s honor roll. She is a member of the Oklahoma Society of Accountants.