Financial Services · Baytown & Mont Belvieu, TX
Your Finances,
Handled with Care
Shannon Addington brings 18+ years of tax and financial expertise to every client in Baytown and Mont Belvieu — personally. Tax preparation, notary services, insurance, financial planning, and business formation, all under one roof.
Tax & Financial Services
in Baytown
One place for everything — appointment-based, in-person, no chain, no turnover.
Tax Preparation
Individual and small business tax returns in Baytown and Mont Belvieu. Simple filings, complex situations, and multi-year back taxes — handled with the same attention to detail.
Notary Services
Official document notarization in Baytown for legal, real estate, and personal needs. Quick and reliable.
Financial Planning
Personalized guidance to help individuals and families build a clearer financial future.
Life Insurance
Tailored life insurance solutions to protect what matters most to your family.
Insurance Broker
We shop multiple carriers to find the right coverage for your situation — all under one roof.
Business Formation
LLC setup and business registration assistance to get your new venture started right.
"Shannon and Glen are amazing. She got us the max refund and made the process we had been dreading so simple and stress free. They are a one-stop shop for us." — Google Review
Baytown's Trusted Tax Preparer — Shannon Addington
Shannon Addington has spent over 18 years in tax preparation, insurance, and financial services — and she still handles every client personally. No hand-offs to junior staff. No strangers picking up your file. When you come to GSA Business Services, you work with Shannon.
GSA Business Services was built to serve the Baytown and Mont Belvieu community the way a local business should: with genuine attention, real expertise, and the convenience of having every financial service you need in one place. From individual tax returns to small business bookkeeping, notary services to life insurance — tax season or not.
Whether you're filing a straightforward return, navigating years of back taxes, protecting your family with insurance, or launching a new business — Shannon and her team are the kind of people you call by name. Serving Baytown, Mont Belvieu, Highlands, Crosby, and surrounding communities.
"She is fast, knowledgeable and even handled my small business and big changes this year with no hassle. I have asked her a million questions and she responds so quickly almost every time. She is incredible."Google Review · 5 Stars
"The sweetest lady! She helped file taxes with ease and I didn't have to stress anymore once I connected with her. She'll help you out in any situation you have."
Google Review"Shannon is very thorough and helpful on making sure you get all the paperwork needed to complete your return. We brought in all our forms yesterday and it was completed today."
Google Review"Shannon is very knowledgeable and professional. She has helped myself and my business."
Alignable Recommendation"This is my second year in a row using Shannon and I won't ever try to do them myself again. She is fast, knowledgeable, and handled everything with no hassle."
Google ReviewLocation
& Hours
8011 FM 3180 Rd Suite CBaytown, TX 77523 Get Directions → (281) 838-2412
Request an Appointment
Appointments are available Monday through Saturday. We'll follow up within one business day to confirm your time.
Request received.
We'll be in touch within one business day to confirm your appointment.
Ready to get started?
Call Shannon directly or stop by our Baytown office on FM 3180. Serving Baytown, Mont Belvieu, Highlands, Crosby & surrounding areas. Walk-ins welcome during business hours.
(281) 838-2412