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 NAEA, NATP and PSEA. 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


Caity 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, Caity took bookkeeping courses and is now being trained to handle our variety of bookkeeping clients. She helps with data entry and receptionist duties as needed.   She became a Notary so she can help with DMV and notary work.

Michelle Kershaw:

Michelle has joined us at the end of 2019 as the Office Manager and has now taken tax courses and will be an AFSP – Tax Preparer.  Michelle recently became a Notary and will be helping with the new DMV/Notary Office.  Prior to working here, she worked for the County of York, IT for 13 years.  Michelle is a proud mother of 2 children that keep her busy outside of the office.

You can contact her directly at

Vickie Witmer:

Vickie is a receptionist for the Tax Office and will be mainly working in the DMV/Notary Office.  Outside of the office she is a mother of 4, a grandmother of 9, and a great-grandmother of 2.


Caity 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, Caity gave birth to him December 2020, we are happy to have this new addition in the office!