About Us


Not Just Numbers is a bookkeeping and tax preparation firm in Northern Virginia.

Founded by Shelley Kasten, an Enrolled Agent (EA) with the IRS and a QuickBooks Certified ProAdvisor, NJN is more than just an accounting firm; we are your dedicated partners in financial success. As a woman-owned firm, NJN is committed to delivering personalized accounting solutions with integrity and dedication. We understand that every business, regardless of size or complexity, deserves exceptional financial services tailored to its unique needs.

Shelley has been an Enrolled Agent with the IRS since 2017, a QuickBooks ProAdvisor since 2009, and a full charge bookkeeper since 2005. Her passion lies in sharing knowledge and expertise to empower our clients. 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.

"It's not just about numbers, it's about the people behind them." — Shelley Kasten

Our FIERCE Commitment

At Not Just Numbers, we don’t just crunch numbers; we embody a set of values that define our mission and guide every aspect of our work. Our commitment is encapsulated in the acronym FIERCE.

Our fierce commitment is more than a set of values; it’s the essence of who we are. It drives us to deliver exceptional financial services and create an environment where everyone can thrive and enjoy the journey.

Faith — We believe in the principles that shape our journey, fostering unwavering trust in our clients, our team, and the entrepreneurial path.

Integrity — Integrity is the backbone of our operations. We uphold honesty, transparency, and ethical behavior in every interaction, ensuring trust and reliability in our services.

Excellence — We are dedicated to delivering excellence in every facet of our work. Going above and beyond, we consistently strive to exceed the expectations of our clients.

Respect — Respect is fundamental to who we are. We value the diversity of our clients, understanding their unique needs, and treat every individual with the utmost dignity.

Continuing Education —Staying at the forefront of industry knowledge is paramount. We actively pursue ongoing learning opportunities to provide our clients with the most up-to-date and relevant financial solutions.

Enjoyment — Beyond the numbers, we find joy in our work. We cultivate a positive atmosphere, creating an enjoyable experience for our team and clients alike.


Behind every financial success story, there's a dedicated team committed to your prosperity. Get to know the passionate people who bring expertise, integrity, and a personal touch to every service we offer.

5 Star Reviews From Satisfied Clients


Your financial success starts with a simple form.

With a team of seasoned professionals led by Shelley Kasten, an Enrolled Agent with the IRS since 2017, we bring a wealth of expertise to ensure your financial records are not just maintained but optimized for informed decision-making. Trust us to turn tax season from a challenge into an opportunity for financial optimization.

Shelley Kasten, EA, President

Shelley Kasten, President and CEO of Not Just Numbers, Inc., has been an Enrolled Agent (EA) with the IRS since 2017, a QuickBooks ProAdvisor since 2009, and has been a full charge bookkeeper since 2005. She loves sharing her knowledge and expertise to empower her customers so they can apply what they have learned and effectively incorporate it into their own businesses.

Her greatest joy, however, is her family and leaving them with a heritage they can be proud of. Her hobbies include what her family has coined “Epic Kasten Adventures” and reading fiction books.

Gamble Hanes, Chief Operating Officer

Gamble has more than 34 years of experience as an industry professional. As COO, she draws on her education, experience, and organizational skills to oversee operations and service quality. Gamble loves a challenge and believes that “learning is a long-life process and the knowledge that you have is never enough.”

Gamble has been a resident of Virginia since she moved from her native Florida in 1994. Gamble is inspired daily by her husband Jeff and their children. In her spare time, Gamble enjoys floral & interior design, event planning, hunting, bowling, entertaining and visiting wineries with her husband.

Katie Francis, Bookkeeper

For many years Katrina worked as the Office Administrator at a church that also had a school and daycare. During this time she kept track of student and employee records as well as simple bookkeeping including Accounts Payable and Receivable in addition to payroll. She enjoys working with others to meet goals and expectations.

Most recently her focus has been on homeschooling her children. They have both graduated and now she’s the mom of two young adults. Her hobbies include spending time with her family and friends, coaching a bible quiz team, serving at her church, thrifting and reading.

Daiva Hubbard, CPB, Full Charge Bookkeeper/QA Analyst 

Daiva joined the Not Just Numbers team in 2022. She is a certified QuickBooks ProAdvisor and a Certified Public Bookkeeper (CPB) with 20+ years of experience as an independent bookkeeper. Her clients come from a variety of industries. She is skilled and able to meet their unique requirements while taking care of the full-charge bookkeeping tasks. Most of all, Daiva enjoys the clean-up projects and updating the client’s books to the point where they accurately represent the company’s financial position and performance. She always strives for excellence and seeks to meet and exceed her customer’s expectations.

Daiva lives in Stafford, VA with her husband and a teenage daughter. In her spare time, she loves to garden, cook, volunteer at her church and, above all, to simply enjoy time with her family.