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Kolnicki Peterson Wirth

3.9

About this business

Location details

1400 Opus Pl # 100, Downers Grove, IL, 60515, United States

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WeekdayScheduleStatus
Mon9:00 a.m. to 6:00 p.m.
Tue9:00 a.m. to 6:00 p.m.
Wed9:00 a.m. to 6:00 p.m.
Thu9:00 a.m. to 6:00 p.m.
Fri9:00 a.m. to 6:00 p.m.
SatClosed
SunClosed
3.915 reviews
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Jorge Calvillo's profile image
Jorge Calvillo 
2 months ago

The Best Accounting firm I have ever used! Have been going here for years. Mike Kolnicki is the best of the best. Efficient and professional. Call ahead to set an appointment because they fill up quickly. Highly recommended. 

tara prusa's profile image
tara prusa 
3 months ago

I have been a client for YEARS. I have never had a problem. Great staff and very personable. Would highly recommend this firm for all your accounting needs. 

Doug DiBasilio's profile image
Doug DiBasilio 
3 months ago

Awful customer service and delayed my return for over 1 year. Ended up using for personal and business and both returns were messed up. Called the IRS for them and still would not respond. Stay far away from this firm. 

Tanya Sweet's profile image
Tanya Sweet 
4 months ago

Unethical - Fraud - Report with form 14157-A (Tax Return Preparer Fraud or Misconduct Affidavit) - - Filed returns without approval or signature -Address on return was different from what was filed with the IRS/IDR -Banking account-routing numbers different on the received return than what was filed with the IRS/IDR -File date stated July 2025 when IRS confirmed file date of April 2025 The tax guy would only respond through email or text until we mentioned calling the IRS (since my daughter did not know if he even filed her ... read more

Blake J's profile image
Blake J 
10 months ago

I would strongly advise against using this firm. Their lack of communication is a major problem; they failed to follow up with us as Tax Day neared, forcing my wife and me to scramble to file an extension ourselves. When they did finally complete our taxes, they made a critical errors. Both the IRS and the state sent us letters informing us that we owed more, which was a direct result of their mistakes. My trust in this firm is completely gone, and I will never be a client again. 

Frequently asked questions about Kolnicki Peterson Wirth

How is Kolnicki Peterson Wirth rated?

Kolnicki Peterson Wirth has a 3.9 star rating with 15 reviews. 

When is Kolnicki Peterson Wirth open?

Kolnicki Peterson Wirth is open now. It will close at 6:00 p.m. 

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