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Business Details
47 Years
experience
Trusted Accounting & Tax Services in Torrance, CA
Charles McDonough Accountancy Corp. (CMAC) is a full-service tax, accounting, and business consulting firm with over 45 years of experience serving individuals and businesses in Southern California. Our team of certified professionals specializes in auditing, tax planning, financial consulting, and QuickBooks support, with a focus on personalized service and industry-specific expertise. We maintain rigorous professional standards through mandatory peer reviews every three years and 80+ hours of continuing education biennially.

Our mission is to help clients achieve financial viability through proactive planning, transparent communication, and strategic advisory services. We serve diverse industries including healthcare, real estate, manufacturing, and non-profits while prioritizing client relationships over transactional interactions. Our commitment to excellence has earned recognition from the California Society of CPAs and the AICPA's Private Companies Practice Section.
Services
Tax Planning Financial Audits Estate Planning QuickBooks Support IRS Representation Business Valuation Payroll Services Cryptocurrency Accounting Retirement Planning Forensic Accounting
Details
  • Year established: 1979
Highlights and features
  • Over 45 years of specialized accounting and tax expertise in Southern California
  • Mandatory peer-reviewed practices ensuring audit quality and compliance
  • Personalized service with no referral fees or third-party commissions
  • Industry-specific experience across healthcare, real estate, and manufacturing
  • 80+ hours of continuing professional education biennially for staff
Associations and certifications
  • Private Companies Practice Section (PCPS) of the American Institute of Certified Public Accountants
  • California Society of Certified Public Accountants
What people say
Exceptional tax expertise Personalized service Proactive planning Industry knowledge Reliable support
Services
Tax Planning
Our tax planning services optimize financial outcomes through strategic analysis of current tax laws. We specialize in minimizing liabilities for high-net-worth individuals and businesses while ensuring compliance. Our team provides tailored solutions for cryptocurrency transactions, international taxation, and complex business structures.
Financial Audits
We conduct comprehensive financial audits with three assurance levels: full audits, limited reviews, and compilations. Our peer-reviewed processes verify financial accuracy while identifying operational improvements. Services include internal control assessments and compliance audits for ERISA plans.
Estate Planning
Our estate planning integrates tax-efficient strategies for asset distribution. We specialize in trust administration, gift tax planning, and business succession frameworks. Services address probate avoidance and intergenerational wealth transfer while complying with evolving tax regulations.
QuickBooks Support
We provide end-to-end QuickBooks solutions including system setup, staff training, and financial report optimization. Our experts ensure proper configuration for accurate financial tracking and offer ongoing support for businesses transitioning to digital accounting systems.
IRS Representation
Our certified professionals represent clients during IRS audits and tax disputes. We handle correspondence, negotiate payment plans, and resolve liens/levies. Services include audit defense strategies and voluntary disclosure programs for unfiled tax returns.
People
Gregory G. Wilson
President
CPA with 40+ years of experience specializing in taxation and business planning. Member of AICPA and California Society of CPAs. Expertise in manufacturing, healthcare, and non-profit sectors. Maintains firm quality control processes.
Sonny Martanegara
Manager IT Administrator
CPA with 20+ years in financial audits and tax planning. Manages IT systems while providing business solutions. Member of AICPA and California Society of CPAs. Holds BS in Business Administration/Accounting.
Jenny Forsyth
Senior Accountant
25+ years of experience in financial statements and tax preparation. Specializes in non-profits and trust accounting. Holds economics degrees from Wharton and LSU. Completed UCLA accounting certificate with distinction.
Teodora Pejic
Staff Accountant
BS in Business Administration/Accounting from CSU Long Beach. Preparing for CPA license while handling tax returns and audit reviews. Experienced in corporate and individual tax filings.
Questions
What accounting services do you offer for small businesses?
We provide full-cycle accounting, payroll processing, financial statement preparation, and business advisory services tailored to small businesses.
How do you handle IRS audit representation?
Our team manages all audit correspondence, minimizes liability, and handles negotiations with tax authorities for both individual and business clients.
Do you offer QuickBooks training and support?
Yes, we provide personalized QuickBooks training, system setup, and ongoing support to optimize accounting processes for businesses.
What estate planning services are available?
We offer comprehensive estate planning including trust administration, gift tax strategies, and business succession planning with tax-efficient solutions.
How does your firm stay current with tax law changes?
Our team completes 80+ hours of continuing education biennially and participates in mandatory peer reviews to maintain compliance with evolving regulations.