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O'Donnell & Dennis Cpa's
“I will come back again next year.”
Best CPAs in Longmont, CO
24 firms listed · 12 in Longmont · 3 open weekends · 18 rated 4.5+ · 1 shows a license
Data verified October 17, 2026
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Brock and Company Cpas
“He is very helpful and has the experience dealing with the IRS that you need when you ever have to deal with them.”
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Michael F Pharris CPA
- Small Business
“Further, despite being fully proficient as a financial planner myself, I've even engaged Mike as my own CPA and have found him to be the consummate professional for my own firm's tax and accounting needs.”
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Trailhead Accounting Solutions CPA
“Thank you for the help with the Quick Books Point of Sale puzzle.”
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Hopp Consulting
“I have used them for both my personal and business accounting I have also used them for their business tax consulting services.”
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Hawkins & Martinez, Ea's
“Mauricio repeatedly has gone out of his way to explain complicated (to me) tax/payroll questions.”
The 24 firms listed for Longmont, CO are accounting practices that serve businesses and organizations. What each states about its CPA license and assurance work comes from its own website; ratings and quotes come from public reviews.
Area overview: Longmont, CO
12 of the 24 firms we list are based in Longmont; the other 12 serve Longmont from towns including Boulder (13 mi), Louisville (14 mi) and Firestone (8 mi). 22 of the firms on this page have a rating, from 3.8 to 5.0 across 211 reviews; 1 has 50 or more reviews and 18 are rated 4.5 or higher. 3 are open on Saturdays and 1 on Sundays. The services the firms on this page list most often on their websites are business services (3), industries (3), tax preparation (3), tax services (3) and estate planning (2). 1 shows a license on its website; 1 lists staff certifications (CFP) and 6 have a BBB rating of A or A+. Domain records put 15 websites of the firms on this page at ten or more years old; the oldest dates from 1996. 2 offer remote or virtual consultations; 3 offer payment plans and 2 offer a free initial consultation. We have a website on file for 23 of the firms on this page; 23 publish a contact page; 19 list a public email and 2 take bookings online. We count these figures across the firms on this page; distances are straight-line, and hours and prices change, so confirm the details with the firm before you book a consultation.
Why are accounting practices outside Longmont shown here?
The firms holding an address in Longmont number 12 of the 24 here. The rest come from other towns within 20 mi. Assurance work spans a region comfortably, so sector experience usually outweighs the drive. Distances are straight-line.
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Lahan CPA Tax
“I highly recommend working with her for all your tax preparation needs.”
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Jbsk Cpas
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Kirkland & Company, Cpa's
“The are competent and friendly and respond quickly to questions.”
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Thaxter E. Williams, CPA
- Small Business
“We are local business owners, and after a serious nightmare trying to work with Quickbooks Online, there was no way I could have managed to figure out our business and personal income taxes on my own for our first year in business.”
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Raymond e Derr CPA Pc
“In over 10 years, we have really had no major issues and in fact were referred by others to him and have referred others too that have never hand an issue.”
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Jim Marty & Associates Llc
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Williamson & Co
- Payroll
- Real Estate
- Responsive
“Due to our real estate holdings, our return is very long and complicated and we appreciate their extensive knowledge about the tax implications of rental properties.”
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Jeanne M Adams CPA
- Deduction
- Information
- Regulations
“2023 is the first year I've worked with Jeanne and she has been a great help in amending my 2020 & 2021 tax returns after the previous company did them so poorly.”
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The Sunderland Group
- Small Business
“Granted, we never leave Mark's office happy, as he always has a accurate idea of the exorbitant estimated taxes that we have to pay; but we do leave satisfied and confident that the IRS won't be knocking on our door anytime soon.”
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Johnson Kightlinger & Co
“Him and his team never made me feel guilty if I got something to them a couple days after they asked for it as I had experienced with others in the past.”
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Bakke, CPA Boulder
“Jake was able to have my return done within the week and on top of that gave me some great advice for my business and next year's taxes.”
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Gary A Jacobs & Associates
“Gary and his team are both professional and down to earth with the ability to make the sometimes convoluted tax code understandable.”
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Graham & Company
“The firm made an error on initial return, but found it themselves, corrected it efficiently and promptly and at no cost (or brain damage) to me.”
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Henry Waters & Associates
- Team
- Money
- Accountant
“It's a long story but advice they gave us on changing our corporate structure has probably shaved 5 years off my retirement horizon – so you not only get accounting advice – you get business / small business owner advice.”
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Tandem Cpas
“We have received excellent accounting services and enjoyed a mutually beneficial relationship with Tandem.”
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John Baiamonte, CPA
- Knowledge
- Questions
- Estate
“ The estate taxes were a big challenge for us and John was able to get everything in order, fix errors made from previous years, and help us get everything correctly filed with the various taxing authorities.”
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Mark Carson & Associates
“They are very professional.”
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Varra Financial Associates
“We are extremely confident in the plan we put together and are ready to enjoy the next chapter in our lives thanks to the suggestions and advice we received from our two wonderful financial advisors!”
Financial Statement Audit Services in Longmont, CO Cost Estimates
Minimum cost
$1160
Maximum cost
$4059
National Average
$2320
Avg Per Hour Rates
$348
$2088
$2900
Fair price range is based on 251 cost profiles
Why these companies made our list
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