Best QuickBooks Consulting & Training near O'Fallon, MO

We have 2 firms in O'Fallon on file, and both are on this list, along with 13 from towns including St. Charles (5, 11 mi), St. Peters (3, 6 mi) and Chesterfield (3, 11 mi).

3 open weekends · 13 rated 4.5+

Data verified October 18, 2026

THE OLD TAX House

THE OLD TAX House

4.6 19 reviews
“I have been a customer for personal and business taxes for multiple years.”
Serves St. Charles County, surrounding areasSince 1977BBB A+
8810 Veterans Memorial Pkwy
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Wolf Bookkeeping

Wolf Bookkeeping

5.0 1 review
“Mike goes out of his way to make sure his clients are well taken care of.”
315 Woodlawn Ave #4
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Pargo Financial

Pargo Financial

4.9 50 reviews
“Being able to upload and do it all virtually was my preference, as is communicating via text, email and phone.”
BBB A+Since 2020
Saint Peters, MO · 6 mi from O'Fallon
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Devereux and Company

Devereux and Company

5.0 3 reviews
“I recommend all of my clients to Devereux & Co for there tax and business planning needs.”
Free phone consultationServes St. Louis, St. Charles, United States35+ yearsBBB A+
Saint Charles, MO · 11 mi from O'Fallon
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Summit Tax and Wealth Advisory

Summit Tax and Wealth Advisory

4.5 11 reviews
“Would recommend their services to anyone looking for someone new to work with.”
Since 2016Locally owned
Saint Peters, MO · 6 mi from O'Fallon
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LEM Business Solutions

LEM Business Solutions

5.0 4 reviews
“Laura and Heather with the LEM team have been incredibly responsive and have provided amazing customer service.”
Free consultationReplies within 1 business dayServes United StatesSince 2005BBB accredited
Chesterfield, MO · 11 mi from O'Fallon
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The 15 firms listed for O'Fallon, MO set up, repair and teach accounting software for businesses. What each says about certifications and supported platforms comes from its own website; ratings and quotes come from public reviews.

Area overview: O'Fallon, MO

The 15 firms on this page are rated from 4.0 to 5.0 across 177 reviews; 1 has 50 or more reviews and 13 are rated 4.5 or higher. 3 are open on Saturdays. 3 have a BBB rating of A or A+. Domain records put 10 websites of the firms on this page at ten or more years old; the oldest dates from 2000. 1 offers payment plans; 4 offer a free initial consultation and 1 is family- or locally-owned. We have a website on file for 14 of the firms on this page; 13 publish a contact page; 9 list a public email and 3 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 software consultants outside O'Fallon listed here?

Within O'Fallon there are 2 of the 15 firms shown here. The remainder come from other towns inside 15 mi. Nearly all of this work happens over a screen share, so distance rarely matters. Distances are straight-line.

Book onlineBook
Matt Seliga Tax & Accounting

Matt Seliga Tax & Accounting

4.9 18 reviews
“Matt gives five star service and it's always been a pleasure to do business with him.”
Since 2018
Saint Charles, MO · 11 mi from O'Fallon
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Wamhoff Accounting Services

Wamhoff Accounting Services

4.7 11 reviews
“Sandy and the team are very professional and a pleasure to work with.”
Since 2002
Saint Charles, MO · 11 mi from O'Fallon
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Fine & Associates

Fine & Associates

Since 2011FinancingPrices online
Chesterfield, MO · 11 mi from O'Fallon
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Mila Samsonov CPA

Mila Samsonov CPA

4.0 2 reviews
“She gets things done in a timely professional manner 😊 …”
Free estimatesServes St. Charles, Missouri, St. Louis metro areaSince 2016
Wildwood, MO · 15 mi from O'Fallon
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Brown Smith Wallace

Brown Smith Wallace

5.0 1 review
Since 1975
Saint Charles, MO · 11 mi from O'Fallon
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Grayson Accounting

Grayson Accounting

5.0 5 reviews
“Jane is professional and personable - the perfect mix to get any business on track with their accounting software.”
Free phone consultationSince 2017
Saint Charles, MO · 11 mi from O'Fallon
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Bolk Tax Service CPA

Bolk Tax Service CPA

4.2 4 reviews
“Kyle has been filing my family's taxes for many years and always does an excellent job.”
Since 2011Prices online
Chesterfield, MO · 11 mi from O'Fallon
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Holly's Bookkeeping & Notary

Holly's Bookkeeping & Notary

5.0 2 reviews
“Holly took her time and answered all our questions.”
Free consultationSince 2012
1 mi from O'Fallon
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The Small Business Accounting Center

The Small Business Accounting Center

5.0 3 reviews
“Scott is amazing with numbers and really cares about his clients.”
Since 2017
Saint Peters, MO · 6 mi from O'Fallon
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HomeQuickBooks ExpertsMissouriO'Fallon, MO

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