
Our Services.
Simic Irwin CPA specializes in tax consulting, accounting, auditing and financial advisory services for individuals and businesses of all sizes, with offices in DuPage and Henry counties, and serving clients in all 50 states. Our competent, experienced staff strives to provide quality, individualized financial services to our varied clientele.
Whether you need a simple tax return preparation, payroll services for your business, outsourced CFO services, or anything in between, we have the tools and the expertise to fit your needs.
Exclusive Services
We specialize in municipalities, townships, school districts, non-profits, healthcare providers, manufacturing, media and real estate. Our CPAs understand your industry's unique regulations and compliance requirements—delivering tailored solutions for your sector.
1
Tax support
From personal and business tax preparation to trust filings and international tax services, we examine appropriate deductions to minimize your tax burden. Our seamless digital process handles everything from document collection to electronic filing. We provide year-round support for strategic tax planning, IRS representation, and guidance that aligns with your financial goals.
2
Audit and Assurance
We deliver thorough, objective financial examinations through audits, reviews, compilations, and agreed-upon procedures that stakeholders depend on.​ Our experienced team serves corporate entities, governmental agencies, pension plans, and not-for-profit organizations - tailoring our approach to your specific needs with clear, reliable results.
3
Business Consulting
Build a strong foundation with expert business setup and planning, financial management, and IT services.​ We guide you through entity type selection (LLC, S-Corp, C-Corp, or partnership), handle all state and federal filings, optimize your accounting system, and identify cost-effective retirement plan options for you and your employees.
4
Accounting and Payroll
Get the right financial information at the right time in business-owner-friendly language. From bookkeeping and payroll to QuickBooks support, we deliver accurate data that drives smart decisions. Our customised reports including budgeting, tax projections, and COGS analysis reveal exactly where your business stands. It's like having a CFO...at a fraction of the cost.


Municipal Audit Services
Townships, villages, and municipalities need reliable financial guidance for managing public funds and meeting state and federal compliance requirements. We provide comprehensive audit and assurance services including general fund audits, Single Audits, grant compliance, and state-mandated financial reporting for public entities throughout Illinois.

School District Audit Services
School districts face unique audit and compliance requirements under increasing pressure for financial transparency. We specialize in audit and advisory services for K-12 public school districts, charter schools, and education-focused nonprofits—helping administrators and school boards navigate state and federal regulations while preparing accurate financial statements for stakeholders and grant providers.
Industries
We Serve

Mortgage & Real Estate
Mortgage brokers and real estate professionals require compiled, reviewed, or audited financial statements conducted by independent CPAs to meet licensing requirements and demonstrate minimum net worth. We provide the comprehensive financial statement services real estate professionals need to maintain compliance and grow their business.

Not-for-Profit Accounting & Audits
Nonprofit organizations require specialized financial management to maintain stability and reach their goals. We provide comprehensive services including annual audits, tax preparation, financial planning, revenue support schedules, and internal controls for nonprofits, membership organizations, professional associations, and charitable organizations of all sizes.

Government Entity Services
Government entities face complex financial challenges including tight budgets, compliance requirements, and long-term planning. We provide specialized accounting and audit services for federal, state, and local government organizations—including internal controls audits, Single Audits, OMB-133 compliance, GASB 34 implementation, budget monitoring, and cash management solutions.

Media & Production Companies
Media and production companies face unique financial challenges including tax incentives, royalty tracking, and production budgets. We provide specialized accounting and audit services for film, television, digital media, and commercial production studios—including state tax credit compliance, cost reporting, and production expenditure verification to maximize available incentives.