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38 Years
experience
Your Trusted Certified Accountants in Mission Viejo
Established in 1988, Fleming Cronmiller has built a reputation as a trusted partner in accounting and financial services. Our team of seasoned CPAs and professionals brings decades of combined experience to address complex accounting challenges, tax planning, and business consulting. We prioritize client relationships, treating each engagement as a partnership to ensure our clients' financial success. Our commitment to excellence is reflected in our continuous investment in advanced training, cutting-edge technology, and personalized service. We specialize in bookkeeping, tax preparation, payroll services, and strategic financial planning for businesses and individuals.

Our dedication to accuracy, transparency, and client education has earned us long-term trust and loyalty. We operate with strict confidentiality and security protocols to protect sensitive financial information. With team members often serving clients for over 20 years, we offer stability and deep institutional knowledge. Our office hours are designed for accessibility, with extended weekday availability to accommodate client needs. This combination of expertise, technology, and personalized attention positions us as a leader in accounting services.
Services
Accounting Bookkeeping Tax Preparation Payroll Services Business Consulting Estate Planning IRS Representation Sales Tax Services Retirement Planning Financial Forecasts
Details
  • Year established: 1988
Highlights and features
  • We have over 20 years of experience in accounting and tax services.
  • Our team provides personalized service with deep industry expertise.
  • We ensure secure digital communications with encryption technology.
  • We offer comprehensive accounting solutions from bookkeeping to tax planning.
  • Our CPAs maintain advanced training and technical certifications.
What people say
Saved me over $100,000 Saved us thousands No hesitation in recommending Trustworthy Personal and professional
Services
Accounting
Our CPAs provide comprehensive accounting services including general ledger maintenance, financial statement preparation, and business tax return filings. We ensure accurate financial records that comply with regulatory standards while offering strategic insights for business growth. Our expertise spans multiple industries and business structures.
Tax Preparation
We prepare personal and corporate tax returns for all business entities including LLCs, S-Corporations, and C-Corporations. Our services cover federal, state, and local tax filings with expertise in complex tax situations and audit representation. We stay current with changing tax laws to optimize client outcomes.
Payroll Services
We handle complete payroll processing including wage calculations, tax deposits, and regulatory filings. Our services ensure compliance with federal and state requirements while saving businesses time and reducing error risks. We support businesses of all sizes with customized payroll solutions.
Business Consulting
Our consulting services focus on cash flow analysis, business entity selection, and financial forecasting. We help businesses optimize financial operations, choose appropriate legal structures, and develop growth strategies through data-driven financial modeling and expert guidance.
Estate Planning
We provide estate planning guidance to facilitate asset transfer and tax optimization. Our services include succession planning for business owners and coordination with estate attorneys to create comprehensive plans that protect client assets and ensure financial security for beneficiaries.
People
Margaret Fleming
Founder
Margaret Fleming founded Fleming Cronmiller in 1988 after working at Arthur Andersen and Deloitte. She holds a Master's in Taxation from Cal State Fullerton and has over 35 years of accounting experience. She specializes in personalized client service and financial strategy.
Tim Cronmiller
CPA
Tim Cronmiller joined the firm after being referred by a client. He specializes in multi-state tax returns and business entity formation. With over 15 years at Fleming Cronmiller, he provides expertise in QuickBooks implementation and complex tax situations.
Questions
How much accounting knowledge should business owners have?
Business owners should understand basic financial statements and bookkeeping systems. Our CPAs help clients interpret balance sheets, income statements, and cash flow reports to make informed decisions.
Why are financial projections important?
Financial projections provide business targets and frameworks for comparing actual performance. Our team helps create realistic projections and monitors them to adjust strategies for maximizing success.
What financial statements are essential?
All businesses need balance sheets showing assets/liabilities, and income statements tracking revenue/expenses. We help prepare and interpret these critical financial documents for effective business management.
Should I hire a Certified Public Accountant?
CPAs offer the broadest expertise in accounting matters. While other professionals can help, CPAs have advanced training and licensing that provides comprehensive value for complex financial needs.
What is double entry bookkeeping?
Double entry bookkeeping ensures financial accuracy through offsetting entries. This centuries-old method provides reliable records by requiring equal debits and credits for every transaction we process.
Why use a tax consultant?
Tax consultants help ensure proper tax compliance and optimization. Our experts navigate complex tax codes to help clients avoid overpayment while maintaining full compliance with federal and state regulations.