Business Details
46 Years
experience
Trusted Accounting & Tax Services in Mount Prospect, IL
Weiss & Thompson is a local Mount Prospect, IL CPA firm serving businesses and individuals in the Northwest Chicago Suburbs. With decades of combined experience, we specialize in accounting, tax planning, and financial services tailored to small businesses. Our team prioritizes personalized service, offering solutions like outsourced accounting, payroll processing, and QuickBooks support. We focus on minimizing tax liabilities, improving financial efficiency, and fostering long-term client relationships.Our commitment to excellence is reflected in our continuous investment in professional development and cutting-edge technology. We serve diverse industries, including e-commerce, law firms, and medical practices, ensuring compliance and strategic growth. Clients benefit from direct access to CPAs, timely support, and customized financial reporting. Our goal is to simplify complex financial tasks, allowing clients to concentrate on their core operations while we handle their accounting needs.
Services
Outsourced Accounting
Tax Services
Payroll Processing
QuickBooks Support
Business Consulting
Details
- Year established: 1980
Highlights and features
- We offer decades of experience in small business accounting and tax services.
- Our team includes certified CPAs with expertise in QuickBooks and payroll solutions.
- We provide personalized service tailored to the Northwest Chicago Suburbs market.
- Our competitive rates save clients time and resources without compromising quality.
- We prioritize transparency, compliance, and proactive financial planning.
Services
Outsourced Accounting
We provide comprehensive outsourced accounting for small businesses, including financial reporting, accounts payable/receivable management, and cash flow analysis. Our services reduce costs by eliminating the need for in-house staff while ensuring accurate, timely financial data. Clients receive customized reporting to support strategic decision-making.
Tax Services
Our tax services include year-round planning, return preparation, and liability reduction strategies for businesses and individuals. We ensure compliance with federal and state regulations while maximizing deductions. Clients benefit from proactive advice to minimize tax burdens and avoid penalties.
Payroll Services
We handle full-service payroll processing, including tax filings, W-2/1099 preparation, and direct deposit management. Our solutions ensure accuracy and compliance, saving businesses time and reducing errors. Clients receive detailed reports and support for unemployment claims or audits.
QuickBooks Support
As QuickBooks ProAdvisors, we offer setup, training, and troubleshooting for small businesses. Our services optimize software use for budgeting, reporting, and tax preparation. On-site training ensures staff proficiency, while ongoing support maintains data accuracy and system efficiency.
Business Consulting
We deliver strategic consulting to improve profitability, including budgeting, cash flow management, and business plan development. Our expertise helps clients secure financing, evaluate entity structures, and implement growth strategies tailored to their industry-specific needs.
People
Amy Weiss Thompson
CPA, MBA Partner
Amy Thompson has over 25 years of experience in public accounting and business advisory. She specializes in tax planning, new business advisory, and client-focused financial solutions. Her expertise in evolving tax laws ensures clients receive strategic, compliant guidance.
Charles Weiss
Founder
Charles Weiss established the firm in 1980 and served clients for 40 years before retiring. His dedication to personalized service and tax expertise built a foundation of trust and long-term client relationships.
Questions
What accounting services do you offer for small businesses?
We provide outsourced accounting, payroll processing, financial reporting, and QuickBooks support tailored to small businesses.
Do you serve clients outside Mount Prospect?
Yes, we serve businesses throughout the Northwest Chicago Suburbs, including Schaumburg and Arlington Heights.
Can you help with tax planning for new businesses?
Yes, we offer entity selection, business plan development, and proactive tax strategies for new businesses.
Is QuickBooks training available onsite?
Yes, our QuickBooks ProAdvisors provide onsite training customized to your business needs.
How do you handle payroll tax compliance?
We manage payroll tax filings, deposits, and year-end forms like W-2s and 1099s to ensure compliance.
What sets your firm apart from national accounting companies?
We offer personalized service, local expertise, and competitive rates while maintaining the professionalism of larger firms.
Reviews (1)
Mf
Jun 03, 2026
Report
Go somewhere else! I have a small business looking for a new CPA as our former CPA retired. Called Amy T. the owner had an intro call where she came across competent. 90 days later my files hadn't been touched. There was no status or communications from this office unless I reached out to ask for status. One response I got was "I wasn't sure where we left off", another response to my inquiry (30 days after dropping off the files) was "Since this is a business return I will have to work through that first before working on your personal return." Umm yeah!
In April 2026 I wrote an email to Amy and her team that stated waiting in queue during tax season is reasonable but it was unacceptable to reach June and still nothing has been done. Needless to say I went to pick up my tax files today, still sitting on the front desk, the Amanda stated, "I tried advocating for you"... my response "what does that mean". I explained you are a service. I called to inquire, Amy accepted the work, and then you put company's at risk by doing nothing?
I just don't get it. Amanda then said, "I wish I could do it for you but I'm not a CPA." Again I said, "what does that mean?" She started to define CPA but I said why would you even say that to a client. It's so ridiculous. We are on the hunt for a new CPA. This one needs to close down. HORRIBLE service and rude people.
In April 2026 I wrote an email to Amy and her team that stated waiting in queue during tax season is reasonable but it was unacceptable to reach June and still nothing has been done. Needless to say I went to pick up my tax files today, still sitting on the front desk, the Amanda stated, "I tried advocating for you"... my response "what does that mean". I explained you are a service. I called to inquire, Amy accepted the work, and then you put company's at risk by doing nothing?
I just don't get it. Amanda then said, "I wish I could do it for you but I'm not a CPA." Again I said, "what does that mean?" She started to define CPA but I said why would you even say that to a client. It's so ridiculous. We are on the hunt for a new CPA. This one needs to close down. HORRIBLE service and rude people.