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

Jeri Beth Dettinger, EA:

Jeri is the founder of J-tax-S. Jeri is also an Enrolled Agent(EA). She passed her EA exam in 2004. She is a member of  NATP. Prior to earning her EA so worked for a national tax firm for 5 years. After becoming an EA she worked for two years for a CPA. She then decided it was time to start her own business which had been her dream all along. She just wanted to make sure she had enough experience to offer quality services.

Growing up in Dallastown, both Jeri’s father and grandfather owned businesses where she got hands-on experience learning bookkeeping, customer service, and how to run a successful business. Before starting J-tax-S, Jeri continued learning and advancing herself through different jobs. Overall, she worked as a bookkeeper for several businesses and did payroll for several other companies. Over the years, Jeri has accumulated firsthand knowledge in small business areas such as construction, auto sales & repair, small retail specialty stores (IE- craft, musical instruments, appliances, carpeting, etc), direct sales, and service businesses. This wealth of knowledge proves to be an invaluable resource to many who need advice on record keeping, business planning and structure, etc.

Since starting in 2005, Jeri has had to add several more staff members in order to better serve clients. Everyone still reports back to Jeri and she reviews the returns prior to them leaving the office.

You can contact Jeri directly at


Caitlyn is Jeri’s daughter, she grew up in the office while being homeschooled.   Many of our clients have seen her grow up and are excited to see her each tax season. At the end of 2018 she became Partner in the business.  In 2019, Caitlyn took bookkeeping courses and is now able to handle our variety of bookkeeping & payroll clients. She helps with data entry and receptionist duties, as needed.  She is also a notary public and is the most knowledgeable of our staff on DMV side of the business.

You can contact her directly at


Meagan is like a daughter to Jeri and has been a part of her family since she was 14 years old.  Meg has 3 children who are with her at the office, ages 13, 6, and 1!  Meg started doing data entry for us and is now expanding and learning basic tax preparation for this season. She will be the one you speak with and who “bothers” you if we need additional information from you, or if you have basic tax questions ;-).  She started in Customer Service/Retail at 17 and changed her career path after 12 years and serving as a General Manager at Shoe Carnival in Lancaster for 4 years. She excels at business and customer service, and enjoys the “stresses” of tax season!  Meg also is a notary public and handles customers on the notary side of the business. Meg looks forward to and enjoys working with you!


Caitlyn gave birth to Scarlett in 2019.  She is now the one in control of the whole office! 😉 You will continue to see her growing up in the office in the coming years.


Emmett is the newest member of the J-tax-S family, Caitlyn gave birth to him December 2020. He is battling his sister to be the boss (or boss-in-training), but we are ever so happy to have this new addition in the office!