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MARK A STILES CPA, PLLC

Top Pro

Licensed
Licensed
$450
Starting price


Responds within a day


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About
You didn’t come to Thumbtack for more confusion. You came to find someone you can actually trust. We get it. Most accounting help online is either overpriced, under-delivered, or full of jargon. At MASCPA, we’re different, on purpose. Led by Mark A. Stiles, CPA, MASCPA is a virtual, full-service firm with over 20 years of experience guiding business owners just like you. We specialize in clarity, not complexity, using a proven framework called the MASCPA Box Method to connect your books to your goals, and your taxes to your peace of mind. We’re more than bookkeepers. We’re strategic partners who meet you where you are, clean up the mess (without judgment), and help you lead with financial confidence. What Makes MASCPA Different? Founder-first mindset: You’ll never be treated like a transaction. Practical strategy + clean execution: We do the books and build the plan. No jargon, no pressure, just clarity: Even if you’re behind, we can help. The Box Method: Our four-quadrant framework simplifies everything from taxes to growth planning. If you’ve been burned by cookie-cutter firms or left guessing by “cheap help,” MASCPA is your reset button. Let’s rebuild trust and move forward with real strategy, expert guidance, and total transparency.
Overview

Current Top Pro

Hired 245 times

Serves Epping, NH

Background checked

License verified

5 employees

17 years in business

Business hours

This pro hasn't listed their business hours.

Payment methods

This pro accepts payments via Apple Pay, Cash, Credit card, PayPal, Square cash app, Venmo, and Zelle.

Social media

Facebook, Twitter

Top Pro status

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

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2023

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2022

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2021

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2020

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2019

Credentials

License verified

CPA – Certified Public Accountant

License state: FL

Background checked

Passed by Mark Stiles on Jan 10, 2021.

Services offered
Employment status

Customer is self-employed

Customer is not self-employed

Work location

I work remotely (phone or internet)

Projects and media
Projects and media
Reviews

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

Excellent 4.9

194 reviews

5

98%

4

1%

3

0%

2

0%

1

1%

Read reviews that mention:


pro avatar
Jeff L.

2 weeks ago

Hired on Thumbtack

Mark answered all of my questions and was really helpful throughout the tax filing process
Individual Tax Preparation
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Carmen D.

Apr 13, 2026

From Google

Appreciate Mark and his team. They don't stop with simply an income tax filing, instead they offer guidance and answer questions about tax liability, managing cashflow, and how to best maximize a return.
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Jake M.

Mar 20, 2026

From Google

I have been very happy with my experience with Mark. He has now done my tax returns for 3 years and he provides prompt and educated services allowing me to move forward with the confidence that I am doing the best I can to files my taxes properly and on time while lessening my tax load as much as possible with the right decisions and dedications. Everyone should use someone like Mark.
pro avatar
Kevin G.

Feb 14, 2026

From Google

I have been working with Mark and his team for over five years now. As someone with complex tax returns, I truly appreciate how Mark has jumped on calls and gone into great detail about what I should do to plan for both the current year and the years ahead. Their turnaround time has been incredibly fast, and they are always easy to reach via email, with very quick responses to any questions Ive had. I would strongly recommend them to anyonethey are the best around!
MARK A STILES CPA, PLLC's reply
Kevin, we appreciate the kind words! Admittedly we could not give such a great customer experience without our entire team; it gives me a lot of pride reading this review. Thank you and we'll continue to work at providing the accessibility, professionalism, and efficiency that keeps you coming back!
pro avatar
Lizandra M.

Feb 13, 2026

Hired on Thumbtack

Mark did a great job from start to finish. He was professional, knowledgeable, and delivered high-quality work. He explained everything clearly, was responsive to questions, and provided excellent value for the service. I would absolutely recommend him and would work with him again.
Business Tax Preparation
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