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Offers remote services
Discounts available
Offers remote services
Discounts available
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Special tax situations

Responds in about 1 hour

Introduction: Mark A. Stiles, CPA (MASCPA) is a full service, virtual, CPA firm committed to providing outstanding service to our clients through our dedication to the three underlying principles: professionalism, responsiveness, and quality. At the end of 2009 we established a model that reduces costs for our firm we proudly pass on to our customer base. Our goal is to build a relationship with you so that when tax season comes, you have one less thing to worry about. Mark personally brings 17+ years of accounting, tax, and consulting services to the practice, while Sue has been performing bookkeeping services for the better part of three decades. These two, along with our office manager Melissa Stiles, lead our network of accountants, financial experts, and bookkeepers to meet all your needs!

Current Top Pro

Hired 147 times

Serves Epping, NH

Background checked

License verified

3 employees

12 years in business

Payment methods

Apple Pay, Cash, Credit card, PayPal, Square cash app, Venmo, Zelle

Currently a top pro

Top Pros are among the highest-rated, most popular professionals on Thumbtack.

Jul - Dec

All year

Jan - Jun

This pro indicated that they reviewed CDC safety guidelines for COVID-19 and pledged to do the following:

Maintain 6 feet of distance from customers

Wear masks during the job

Wear gloves during the job

Disinfect surfaces touched during the job

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Special tax situations

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Customers rated this pro highly for responsiveness, professionalism, and work quality.

Exceptional 5.0

109 reviews


Read reviews that mention:

Karyn M.

Individual Tax Preparation

Mark was great to work with! He was able to put my mind at ease, and help me straighten out my tax situation. Would highly recommend.
Dec 29, 2020
Mark L.

Individual Tax Preparation

We really enjoyed working with Mark. He is the only tax professional we met who understood exactly what we were asking for -- tax planning (not necessarily tax preparation or financial advising). He's a great communicator and took plenty of time to answer all of our questions. He helped us understand our past tax challenges and laid out a clear plan to prevent them in the future. And he charged a fair price, too! We definitely plan to work with Mark again in the future. Highly recommended.
Dec 13, 2020
Brad P.

Individual Tax Preparation

Super pleased with my experience with Mark. I had messed up on my 2018 tax return and was slated to pay a large amount. Mark was able to fix it and save me money! His work is very detailed. He was able to answer ALL of my many questions. Very easy to get ahold of him and very responsive to my emails and text messages. Overall, it was a pleasure working with Mark and look forward to working with him in the future.
Nov 25, 2020
Marie-Laure C.


Mark was a pleasure to work with. He was punctual and receptive, taking the time to explain his work and answer my (numerous) questions. I hired him to prepare my business financials for a company sale - something I have never had to do before. Not only did Mark complete his work, he walked me through the steps of a negotiation and ended with nothing short of a pep talk. If you are looking to work with a professional who goes above and beyond, hire Mark Stiles.
Nov 24, 2020
Ally J.

Individual Tax Preparation

Mark was extremely responsive, informative, and made getting our taxes done a breeze. So happy we found him, would highly recommend!
Oct 18, 2020

License Type: CPA – Certified Public Accountant (FL)

License verified on 1/1/2021

Background Check

Mark Stiles


  • What should the customer know about your pricing (e.g., discounts, fees)?

    The goal of the firm is two-fold for our businesses and our tax clients. For our businesses, it is to not only assist you in your entrepreneurial journey, but to educate you on the why. We have found that understanding the why not only increases the value of services we provide, but also keeps your focus on effectiveness and efficiency. These, in our professional opinion, is the foundation for consistent profitability and customer satisfaction. For our tax clients, it is to give you peace of mind that you not only get the top notch quality a CPA provides, but an economical price point. MASCPA stands behind our quotes (the price quoted is the price you pay) so there are no surprises once the service is complete.

  • What is your typical process for working with a new customer?

    All clients receive an initial consultation where we discuss any concerns you may have, walk you through the next steps, and provide you the tools to gather all your information (through our tax questionnaire, or customized email). We also set you up with your own secure portal to protect you and your information. Want to meet in person? No problem we can work out the logistics for that as well during office hours for individuals. Business clients we can arrange a face to face in your place of business, if you prefer.

  • What education and/or training do you have that relates to your work?

    Our owner, Mark A. Stiles is a CPA (Certified Public Accountant) with the ability to practice in all 50 states. Mark's educational background is a BA Accounting Information Systems (2004) degree and Masters in Accountancy (2008) from Stetson University and has been working in the industry for the better part of two decades. Driving off of the CPE Mark needs to obtain each year (40 hrs), Mark requires staff to pursue applicable continuing education to all his staff and/or subcontractors. Our firm provides services, education, support for all your accounting needs!

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