Accounting That Brings Clarity to Your Business

We’re the CPA firm built for small business owners and families who want year-round tax strategy, monthly bookkeeping, and an actual partner instead of someone you only hear from in April. Based in Edwardsville, we serve clients across the Metro East, St. Louis, Chicago, and nationwide through virtual CPA services.

Whether you’re filing a personal return, running a growing business, or somewhere in between, you work directly with a dedicated CPA who knows your name, your numbers, and what you’re trying to build.

Reviews
Trusted by over 3,000+ American Small Business Owners

Trusted by Metro East, St. Louis, and Chicago business owners

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Clients served

Best Accountants

Clients served
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Member firm
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Metro East, STL

Serving nationally
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Certified ProAdvisor
best of 2026 business rate
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Ryan Huneidi profile picture
Ryan Huneidi
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I have relied on Thompson Flaherty Company for my financial services since I was 16. As I have grown into a business owner, their team has continued to provide invaluable support and guidance. I highly recommend their services.
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Kerry crain profile picture
Kerry crain
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
First year working with Thompson Flaherty, and Tyler was outstanding working with us and getting us the best possible return for our personal and LLC! Will definitely work with him again next year!
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Zainab profile picture
Zainab
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I’ve been getting my taxes done here for years and truly appreciate everything they do. They’re always helpful, responsive, and make the process so much easier. Highly recommend!
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lorena nunez profile picture
lorena nunez
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I ended up sending my tax documents over in pieces this year, and honestly thought it would be a headache but Thompson Flaherty handled it really well. They stayed on top of things, kept following up for what was missing, and made the whole process a lot less stressful for me. Even though I couldn’t get everything in on time, they were proactive about filing an extension and making sure everything was handled properly. That really stood out to me. Their pricing is also very reasonable, and you definitely feel like you’re getting your money’s worth. Overall, I’ve been really impressed with their level of service and attention to detail. You can tell they genuinely care about their clients and staying ahead of things. Definitely recommend them.
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Mohmed Irfan Langiya profile picture
Mohmed Irfan Langiya
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I had a great service on my tax return. Associates were very friendly, knowledgeable and professional.
Posted on Google Google
Rodolfo A Sosa profile picture
Rodolfo A Sosa
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I honestly can’t say enough good things about Thompson Flaherty. They’ve saved me a significant amount of money just by taking the extra time to explain tax law changes and applying things I didn’t even know about. I also really appreciate how responsive they are. I know how busy CPA firms get during tax season, but they’ve always gotten back to me—whether it’s a call or email—which goes a long way. Their pricing is very fair too, especially compared to larger firms where you just feel like a number and don’t get much value. With Thompson Flaherty, you actually feel like you’re getting real advice and support. They’ve been a huge help with my bookkeeping, taxes, and overall guidance. Definitely someone I trust and would highly recommend to anyone looking for a solid CPA.
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Syed Ali profile picture
Syed Ali
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I’ve been using this accounting firm for my tax and accounting needs and have been extremely impressed with their professionalism, responsiveness, and attention to detail. What really stands out is their practical, client-first advice—for example, they guided me on a multi-state situation with small amounts of income and explained that filing each return separately would create unnecessary costs through the software, and instead recommended a more efficient and reasonable approach based on expected notices and actual tax due. This kind of thoughtful, strategic guidance shows they truly look out for my best interest rather than just processing forms. They take the time to understand my situation, provide clear direction, and treat my matters as if they were their own. I highly recommend them for anyone looking for trustworthy and reliable accounting support.
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Zakira L. profile picture
Zakira L.
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
A very thorough, competent, and kind group that have filed my taxes for years. They take the time to go over your taxes after filing them and are very patient with any questions you may have. Highly recommend!
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Steve Barton profile picture
Steve Barton
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I’ve been with Jim Klostermann for over thirty years. He has been most outstanding. A super great guy.

Everything You Need From a CPA. Nothing You Don't.

Proactive, Year-round Tax Planning

Monthly Financial Reports You Can Actually Use

dedicated cpas

Dedicated Cpa Who Knows Your Business

Direct Access to Your Accounting Team

on-time payroll

On-time Payroll and Tax Filings

books

Clean, Up-to-date Books Every Month

communication

Fast, Responsive Communication When You Need It

Metro East Accounting Services
All in One Place

Bookkeeping, tax planning, payroll, and advisory all working together so nothing falls through the cracks.

Industries we serve

Accounting Built Around Your Industry

Every industry has its own tax rules, margins, and headaches. These are the ones we work in day after day, so you never have to explain your business from scratch.

Most Business Owners Don’t Realize This Problem Until Tax Time Hits

At first, everything seems fine. Revenue is coming in. Bills are getting paid. Your accountant filed last year’s taxes and you moved on.

But then things start to feel off. You’re not sure how much profit you’re actually keeping. The numbers don’t quite add up. Cash feels tighter than it should. Tax season rolls around and you’re crossing your fingers that nothing was missed.

And the hardest part?

You’re making real decisions about your business, and your life, without numbers you can fully trust.

Skyscraper building
Business colleagues working together
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Success in IRS Audits
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On-Time Project Delivery

We Do Things Differently Than Most Metro East Accountants

Most firms are built around volume. File the return, move to the next client, get through tax season. That works until you actually need help. Here’s what you get with us instead.

What you're used to

With Thompson Flaherty

Why Clients Choose Thompson Flaherty

Why Clients Choose Thompson Flaherty

We’re not a high-volume tax shop. Every client works directly with a dedicated CPA who handles both the tax work and the ongoing advice throughout the year.

Because we believe planning and guidance matter just as much as filing the return. Maybe more.

Our services start at $550 for a basic return, reflecting the level of care, attention, and strategy we bring to every client.

Real People. Real Results.

Our clients don’t just stay with us, they send their friends, family, and business partners. Here’s why.

Posted on Google Google
Ryan Huneidi profile picture
Ryan Huneidi
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I have relied on Thompson Flaherty Company for my financial services since I was 16. As I have grown into a business owner, their team has continued to provide invaluable support and guidance. I highly recommend their services.
Posted on Google Google
Kerry crain profile picture
Kerry crain
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
First year working with Thompson Flaherty, and Tyler was outstanding working with us and getting us the best possible return for our personal and LLC! Will definitely work with him again next year!
Posted on Google Google
Zainab profile picture
Zainab
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I’ve been getting my taxes done here for years and truly appreciate everything they do. They’re always helpful, responsive, and make the process so much easier. Highly recommend!
Posted on Google Google
lorena nunez profile picture
lorena nunez
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I ended up sending my tax documents over in pieces this year, and honestly thought it would be a headache but Thompson Flaherty handled it really well. They stayed on top of things, kept following up for what was missing, and made the whole process a lot less stressful for me. Even though I couldn’t get everything in on time, they were proactive about filing an extension and making sure everything was handled properly. That really stood out to me. Their pricing is also very reasonable, and you definitely feel like you’re getting your money’s worth. Overall, I’ve been really impressed with their level of service and attention to detail. You can tell they genuinely care about their clients and staying ahead of things. Definitely recommend them.
Posted on Google Google
Mohmed Irfan Langiya profile picture
Mohmed Irfan Langiya
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I had a great service on my tax return. Associates were very friendly, knowledgeable and professional.
Posted on Google Google
Rodolfo A Sosa profile picture
Rodolfo A Sosa
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I honestly can’t say enough good things about Thompson Flaherty. They’ve saved me a significant amount of money just by taking the extra time to explain tax law changes and applying things I didn’t even know about. I also really appreciate how responsive they are. I know how busy CPA firms get during tax season, but they’ve always gotten back to me—whether it’s a call or email—which goes a long way. Their pricing is very fair too, especially compared to larger firms where you just feel like a number and don’t get much value. With Thompson Flaherty, you actually feel like you’re getting real advice and support. They’ve been a huge help with my bookkeeping, taxes, and overall guidance. Definitely someone I trust and would highly recommend to anyone looking for a solid CPA.
Posted on Google Google
Syed Ali profile picture
Syed Ali
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I’ve been using this accounting firm for my tax and accounting needs and have been extremely impressed with their professionalism, responsiveness, and attention to detail. What really stands out is their practical, client-first advice—for example, they guided me on a multi-state situation with small amounts of income and explained that filing each return separately would create unnecessary costs through the software, and instead recommended a more efficient and reasonable approach based on expected notices and actual tax due. This kind of thoughtful, strategic guidance shows they truly look out for my best interest rather than just processing forms. They take the time to understand my situation, provide clear direction, and treat my matters as if they were their own. I highly recommend them for anyone looking for trustworthy and reliable accounting support.
Posted on Google Google
Zakira L. profile picture
Zakira L.
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
A very thorough, competent, and kind group that have filed my taxes for years. They take the time to go over your taxes after filing them and are very patient with any questions you may have. Highly recommend!
Posted on Google Google
Steve Barton profile picture
Steve Barton
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I’ve been with Jim Klostermann for over thirty years. He has been most outstanding. A super great guy.

Ready to Work With a CPA Who Actually Gets Back to You?

Whether you need help with personal taxes, running your books, planning for growth, or all of the above, let’s talk. The first call is free and there’s zero pressure.

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