THE OLD TAX House
“My parents and I have been going to the Tax House for many years.”
Best Accountants in O'Fallon, MO
14 firms listed · 5 in O'Fallon · 1 open weekends · 9 rated 4.5+
Data verified October 21, 2026
Weaudit.com
“We have had several processors over the years try to beat the rates we Audit found for us and all have failed.”
Thomas & Associates Llc
“Carolyn has been amazing at educating me on how to get my books in order and what deductions I can take.”
Breneman & Gomez
“John has been our tax accountant for well over20 years and has been amazing!”
House & Associates
Pargo Financial
“Steven was so knowledgeable and informative that he made super confident to work with Pargo Financial on filing my returns.”
The 14 firms listed for O'Fallon, MO prepare accounts, statements and returns for businesses and individuals. What each says about its services and software comes from its own website; ratings and quotes come from public reviews.
Area overview: O'Fallon, MO
Of the 14 firms we list here, 5 are in O'Fallon itself and 9 come from towns including St. Charles (4, 11 mi), St. Peters (2, 6 mi) and Wentzville (2, 8 mi). 13 of the firms on this page have a rating, from 4.0 to 5.0 across 274 reviews; 1 has 50 or more reviews and 9 are rated 4.5 or higher. 1 is open on Saturdays. 9 have a BBB rating of A or A+. 12 have ten or more years of experience, the longest 57 years. 3 offer a free initial consultation; 1 is family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 12 of the firms on this page; 10 publish a contact page; 7 list a public email and 1 takes 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.
Which accounting firms listed for O'Fallon describe their services online?
12 of the 14 firms on this page have a website on file. Most list the industries they serve and the bookkeeping software they support, which is the fastest way to find a fit. Everything there is the firm's own description of itself.
Sederburg & Associates
“So fast and efficient, by far the best tax company I have worked with.”
Affordable Accounting & Tax Services
“Jane and her team have done our personal and business taxes since 2008- they're simply amazing!”
Devereux and Company
“I recommend all of my clients to Devereux & Co for there tax and business planning needs.”
Crowder Accounting
“When I visited Crowder accounting I was greeted by a warm friendly and knowledgeable staff, that went above and beyond to meet my accounting needs.”
Book onlineBook
Matt Seliga Tax & Accounting
“Seliga Tax & Accounting is very knowledgeable to guide you through the tax season and beyond.”
LEM Business Solutions
“Laura and Heather with the LEM team have been incredibly responsive and have provided amazing customer service.”
Wamhoff Accounting Services
“Sandy's breadth of experience, attention to detail, awareness of tax law changes and genuine concern for her clients' welfare are all reasons we engage her services.”
Botz, Deal and Company
Why these companies made our list
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