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Business Details
37 Years
experience
Your Trusted Partner for Accounting Solutions in Pittsburgh
Cotton Mather Accounting Group has been providing comprehensive accounting, bookkeeping, tax preparation, and payroll services to individuals and businesses in the Greater Pittsburgh area for over 30 years. Established in 1989, we became an employee-owned and majority woman-owned firm in 2019, maintaining the highest standards of professionalism as recognized by the National Association of Tax Professionals. Our team delivers personalized, year-round support tailored to clients' unique needs, specializing in creative businesses, service industries, and healthcare accounting.

We prioritize building lasting relationships through trust, transparency, and expertise in navigating complex tax laws to maximize savings and efficiency. With a commitment to excellence, we serve clients ranging from self-employed individuals to large corporations, ensuring accurate financial management and compliance with evolving regulations.
Services
Accounting Tax Preparation Bookkeeping Payroll Services Estate/Trust Accounting
Details
  • Year established: 1989
Highlights and features
  • We offer 30+ years of experience in accounting and tax services.
  • Our team provides personalized solutions tailored to individual client needs.
  • We specialize in navigating complex tax laws to maximize savings.
  • Year-round availability ensures continuous financial support.
  • Employee-owned firm committed to transparency and client relationships.
Associations and certifications
  • National Association of Tax Professionals
What people say
Smoothest tax experience Highest recommendation Fantastic service Timely and thorough Maximized savings
Services
Accounting
We provide comprehensive accounting services including system setup, tax planning, cost-containment strategies, and profit-sharing plans. Our experts streamline bookkeeping systems, reduce tax liabilities, and enhance profitability for businesses and individuals. With a focus on accuracy and compliance, we deliver tailored financial solutions to meet diverse client needs.
Tax Preparation
Our tax preparation services cover personal, self-employed, small business, and corporate needs. We leverage in-depth knowledge of tax codes to maximize refunds, minimize liabilities, and ensure compliance. Year-round support includes audit assistance and strategic planning to navigate complex, changing tax regulations effectively.
Bookkeeping
Specializing in bookkeeping for self-employed individuals and businesses, we offer flexible solutions to maintain accurate financial records. Services include budgeting, cash flow management, and reporting to improve financial clarity and decision-making for clients of all sizes.
Payroll Services
We simplify payroll management for small and large businesses, handling tax filings, deductions, and compliance with federal, state, and local regulations. Our services reduce administrative burdens, ensure accurate employee payments, and minimize errors in tax submissions.
Estate/Trust Accounting
Our professionals manage estate and trust accounting, including tax compliance, fiduciary reporting, and legacy planning. We collaborate with attorneys and advisors to minimize estate taxes, ensure proper distribution, and preserve client legacies through meticulous financial oversight.
People
Chrissy Brennan
Accountant
Chrissy Brennan specializes in personalized tax preparation and small business accounting. With extensive experience in tax strategies and client-focused solutions, she ensures accurate filings and maximized savings for individuals and businesses.
Cotton Mather
Founder
Cotton Mather, founder of the firm, has over 30 years of experience in accounting and tax services. Known for his professionalism and expertise, he established the firm's commitment to excellence and client-centric approach.
Questions
What accounting services do you offer?
We provide full-service accounting, including system setup, tax planning, bookkeeping, payroll, and estate/trust accounting for individuals and businesses.
Do you serve clients outside Pittsburgh?
Yes, we serve the Greater Pittsburgh area, including Ross Township, Wexford, Cranberry, Sewickley, and surrounding communities in Allegheny County.
How can you help with tax season?
Our experts navigate complex tax laws to maximize refunds, minimize liabilities, and ensure compliance, offering year-round support and audit assistance.
Are you available for year-round accounting support?
Yes, we provide ongoing communication and financial guidance throughout the year to address client needs proactively.
What payroll services do you offer?
We handle payroll management, tax filings, and compliance for small and large businesses, ensuring accurate employee payments and regulatory adherence.