McMahon & Associates Certified Public Accountants, P.C.

McMahon and Associates does our personal taxes and some of our business taxes. Cannot recommend them enough! They take the time to explain what/why they are doing what they do and offer suggestions that we should take on our end. Response time is very quick, and they take the time to listen to your needs and offer actions steps. They are extremely knowledgeable and up to date with laws changing and explains how it will affect us. We have been extremely pleased working with them for the past few years!

I did not have a positive experience here. Emily was the first CPA I hired for my new business. I was advised against paying quarterly taxes by her even though I ask and felt that I should be doing so. I ended up owing so much at the end of the year that I was unprepared for due to her advice. I was never contacted throughout the year by her to see if we should meet to check on things and still not until I reached out to her at the start of 2025 did she take a look at my accounts. She did not even know what state I was operating in and really left me with a mess to figure out. The excuse I was given by both her and Marisa was that it was a bad year for her due to her just having had a baby. I felt that she should have recommended another CPA to oversee my account while she was unavai

I truly would not know what I would have done without the help of McMahon and associates. They are extremely compassionate, caring, and by far the best accounting firm in the business. Karen McMahon is so easy and wonderful to work with and the payroll department is exceptional! I lost my accountant of 20 years suddenly in April. They helped me pick up all the pieces and finish out the year seamlessly for both my business and personally. I would highly recommend this accounting firm to each and person or business I know.

As an owner of a midsized HVAC business with nearly 70 years in the business we’ve experienced more than our share of accounting firms. That was until we happened upon the services of McMahon & Associates. We could not ask for a more professional, thorough, fair, and as a bonus, more friendly firm. They have always been extremely quick in responding to every request. It has truly been comforting knowing they’re in our corner when challenges arise. We wouldn’t think of looking anywhere else. Karen McMahon especially has proven time and time again to be an invaluable ally for our company. Don Kovacik

When my accountant passed away over a decade ago, McMahon and Associates took over much of the practice. That have been marvelous treating me with respect and Personal attention. Now that I have closed my business, I just file individual returns. The firm makes it easy for me even though I live in Illinois and do not have a car. I am most appreciative of the service they provide and give them my 100% endorsement.