Real Success Stories

How We Make a Difference,
one client at a time!

Client Testimonials

FAS saved us from disaster! 

I have been a client of FAS Bookkeeping & Tax Services for almost ten years now and became a client when my financial/accounting person left with no notice. Having never written a check, managed payroll, tracked…..all of the above and more. The idea of working remotely was something I’d not considered but I am so thankful I found FAS.

Their commitment to excellence and the attention they pay to the details of my business surpasses my previous experience and current expectations. I appreciate their financial expertise, professionalism and reliable service. Cristy is just an email or phone call away and always ready to answer questions I have or provide assistance when needed. 

I highly recommend FAS Bookkeeping & Tax Services.

Rachelle K. Sheely, PhD

President, RDIconnect, Inc

With everything that you need to juggle as a small business owner, it’s so easy to get busy and take your eye off the ball. For business owners, starting with the right bookkeeping and tax service firm is key. We have been working with FAS since 2014. Cristy & Dennis are both reliable and with high work ethics.

I have peace of mind and can focus on growing my business while FAS handles the financials.

I highly recommend FAS Bookkeeping & Tax Services, a company you can trust.

Angus P.

Tiger-Rock Martial Arts

I hired FAS Bookkeeping and Tax Services to do my books since 2018; their Professionalism and attention to Detail makes me go with them.

They recently was going over our books and found that our Payroll Company took a large sum of money out of our business account since October of 2020. They notified me about this draft so I contacted the Payroll Company which have no good explanation for what they did and will therefore be losing my business here soon. They agreed to put the money back into our account ASAP

There is no way I would have been able to find this money if it wasn’t for Dennis and Cristy; I am so grateful to them.

For honesty and integrity, FAS should be the company you should talk to.

Dawda K.


FAS is the best accounting services (bookkeeping) I have encountered in my 39 years of self-employment. They are hard working, ethical and honest in every aspect of their professional lives. Both Dennis and Cristy have gone way beyond their normal duties to provide services at the highest level.

I highly recommend this company to anyone in need of accounting (bookkeeping) services.

In Memoriam, Marv C.

Tiger-Rock Martial Arts

Running a small business is an extremely challenging task. However with a team like FAS, I do not have to worry about our bookkeeping and tax services. Cristy and Dennis have been a vital piece to our company. I am glad that we can count on their timely response, budgeting plans and cash flow forecasting to help us financially prepare for business objectives.

They are truly great team!

Sandy O.

Garage Guys Automotive

Simply fantastic working with FAS, they have provided a wonderful service for our companies over many years. Thank you so much once again.

I would highly recommend them.

Steve W.

New World Transport

Being a new business owner, it’s great to have peace of mind with regards to the financial administration of your business. FAS Bookkeeping & Tax Services has been handling the bookkeeping and tax reporting for our business for over a year now. With Cristy and Dennis, we always get a prompt response and professional business and tax advice that we can trust.

I’d highly recommend them to anyone!

Bob S.


FAS, with Cristy & Dennis, has been an important part of our progress as a company and I will not hesitate recommending them to business owners who are looking for a serious business partner for such a sensitive financial matter.

Jorge V.

Vecor Pipeline Integrity

Dennis Fontanilla of FAS has played and continue to play a key role in the success of our business. Dennis acts as our Finance Guy. I have peace of mind knowing that my financial records are accurate and up to date and that I have a trusted partner providing guidance on properly managing our cash flow.

I highly recommend FAS to all business owners looking for a trusted and reliable firm to handle their bookkeeping, bill payments and cash flow management.

Victor & Sandy Jordan

Owners, – TRMA Kingwood

FAS is amazing!!

We have been working with Cristy since the end of 2022 and she has always been very detail and on time. They are always available and ready to tackle any mess that we throw at them.

I highly recommend their services!!!

Antonio E.

El Tampiqueno Dairy Products

More Client Testimonials

I started looking for a new bookkeeping and tax service firm as my company was no longer getting the service and attention that we deserve from a CPA firm.

Since I hired FAS Bookkeeping & Tax Services, I have peace of mind knowing that my financial records are maintained correctly and updated monthly. Using QuickBooks online as our accounting system, instead of QuickBooks Desktop maintained at the CPA firm office and to which we don’t have real-time access, now, we can run reports customized to our needs and we can generate reports when we need it. If we need to consult with FAS, Cristy Fontanilla, is always willing to schedule a time to meet with us and answer questions we have. At tax time, I know that I will be stress-free knowing that my company is taken care of by FAS who truly cares about the success of their clients. They were very attentive to our questions and very patient in explaining situations to us which we really appreciated.

I highly recommend FAS to business owners who are looking for a reliable and professional bookkeeping and tax preparation service firm.

Mark S.

I have been unhappy with the CPA firm that has been handling my business and personal tax compliance for many years so I decided to hire FAS Bookkeeping & Tax Services. I made the decision almost close to the deadline. FAS also handles the bookkeeping for my business so it was a smooth transition and Cristy was very professional and despite the challenge on the timing (very close to the tax deadline), Cristy made all the efforts to ensure that we were able to file on time. Their client service is outstanding and response time is impeccable.

I highly recommend FAS Bookkeeping & Tax Services for your bookkeeping and tax compliance needs - Please consider your FAS for your tax services. - Please support your local businesses.


FAS Bookkeeping & Tax Services has been a reliable support for my small business. I can always count on Cristy and Dennis for support. One time when I was needing a financial package to submit, I sent a request to Cristy with a very short notice. However, within a few hours, Cristy got back to me with the information I requested. They truly care and are passionate about helping their clients succeed. FAS has been an integral part of my business support system.

I would highly recommend FAS Bookkeeping & Tax Services for business owners needing a reliable bookkeeping and tax services firm to help them in their business.

Tyler S.

I have referred Cristy to many of our clients and have always been impressed by her professionalism and dedication to her customers. If you own a small business and operate in the Houston or Katy area you will benefit from working with Cristy on your financials and getting straight forward honest advice from one of the best accountants in the area.

Impress Computers

Cristy Fontanilla of FAS Bookkeeping & Tax Services helped me navigate the complexity of tax rules applicable to my business and individual tax situation and guided me through the entire process. I highly recommend Cristy Fontanilla to handle both your bookkeeping and tax services. She is very professional, resourceful and responsive. She was great about recommendations to improve our tax situation.

Oscar G.

FAS is easy to work with. Their communication with us and expertise has been invaluable. If you are a small business owner like I am, I highly recommend you call them and let them make your life much easier.

Colt M.


FAS bookkeeping service has been an integral part of my consulting business.

For many years now, I have peace of mind knowing that my financials are in order. If we have questions about our business financials and need help navigating through the complexities of our QuickBooks accounting system, Cristy Fontanilla, willingly finds time to meet with us to answer questions we have or provide us guidance. This really means a lot to us as business owner. FAS exemplify the true meaning of outstanding client service.

I highly recommend FAS to business owners who are looking for a reliable business partner to handle their bookkeeping needs.

Bruce S.

I have know Christy for about 5 years. She has assisted several of my clients and me personally. Her and her team are consummate professionals. They help business owners inject much needed financial structure into their business which strengthens control and decision making. If you are a business owner, Christy makes an outstanding strategic partner. I highly recommend her.

Gerry B.

Because of the nature of my business and report requirements from corporate that are time-sensitive. I can count on Cristy and her team's eye for detail and reliability to deliver accurate and timely financial information.

Terri F.

We've been with FAS for years and they are one of the most professional and honest people we've worked with. Cristy and Dennis are always on time, dedicated and knowledgeable. Not only they're taking care of our bookkeeping service, they always alert us when there is strange trend or activity on our accounts. They are making sure our businesses profitable and saving money. I highly recommend Cristy, Dennis and Fontanilla Accounting Solutions.

Katie T.

Being a small business owner means we're always constrained by time and resource. I highly recommend FAS for your bookkeeping and tax preparation needs.

Roy A.

I have referred Cristy to many of our clients and have always been impressed by her professionalism and dedication to her customers. If you own a small business and operate in the Houston or Katy area you will benefit from working with Cristy on your financials.

Roland P.

Christy is an awesome bookkeeper and adviser. I highly recommend her for personal tax and business tax. Not only she help with our taxes, she even organize our entire book keeping for very reasonable price.

Kayla C.

FAS has been doing my businesses bookkeeping and taxes since inception. They are always responsive and move so fast they are always waiting on me. Cristy is very patient and willing to answer any questions I have. I would recommend them to anyone looking for professional bookkeeping and tax services!


Having FAS Bookkeeping & Tax Services supporting our business’ bookkeeping and tax needs from the very start gives us peace of mind knowing that we are taken care of and supported by a firm that truly cares about our success. The dedication and service I continue to receive from them are commendable. They are very professional and respond to our business needs on a timely fashion. I highly recommend FAS Bookkeeping & Tax Services for your bookkeeping and tax compliance and reporting needs.

George H.

I can always depend on Cristy to answer questions I have on my financial reports and tax questions I have for business and personal. Cristy respond to our questions on a timely manner and always willing to help. I highly recommend FAS Bookkeeping & Tax Services to business owners looking to outsource their bookkeeping and business income tax preparation to a reliable and reputable firm.

Larissa M.

I've recently began working with FAS for bookkeeping and accounting services, and in just a short time, they have uncovered costly issues that will likely save us quite a bit of money moving forward. It's been a great start and I'm looking forward to continuing this partnership.

Brian S.

We started working with FAS Bookkeeping & Tax Services mid of last year, and we are very pleased with the quality of their work and reliability. I have peace of mind knowing that my business financials are accurate and up to date. They are very thorough in their work and respond to our request on a timely manner.

I will highly recommend them.

Michael P.