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Your Trusted Accountant in Commack, NY
At John W. Halloran, CPA, we have dedicated ourselves to providing comprehensive accounting and tax services tailored to meet the unique needs of individuals and small businesses. With decades of experience, our practice focuses on delivering accurate bookkeeping, strategic financial planning, and timely tax preparation, ensuring clients maintain compliance while optimizing their financial health. Our team leverages modern technology to offer an Online Office platform, enabling clients to actively participate in managing their finances through tools like financial calculators and real-time access to critical resources.

We prioritize personalized service, backed by a commitment to staying current with evolving tax regulations, to offer actionable insights that support long-term financial success. Our reputation for reliability and client-centric solutions has been built through years of serving thousands of satisfied clients in Commack and surrounding areas.
Services
Bookkeeping Financial Planning Financial Statements Individual Tax Returns Payroll Services Business Tax Returns Tax Planning Trust & Estate Services
Highlights and features
  • We offer 24/7 access to financial tools and resources for active client participation.
  • Our team serves thousands of individual and business clients annually with precision.
  • We provide tailored tax planning strategies to optimize financial outcomes.
  • Financial statements are prepared monthly, quarterly, and annually with accuracy.
  • Our practice combines modern technology with decades of accounting expertise.
Services
Bookkeeping
Our bookkeeping services ensure accurate financial record-keeping for small businesses. We manage daily transactions, reconcile accounts, and generate reports to support informed decision-making. Clients receive timely updates to maintain financial clarity and compliance with regulatory standards.
Tax Planning
We develop customized tax planning strategies for individuals and businesses. Our approach includes annual forecasting, mid-year adjustments, and long-term optimization to minimize liabilities. Clients benefit from proactive guidance aligned with evolving tax laws and personal financial goals.
Financial Statements
Monthly, quarterly, and annual financial statements are prepared with precision for small businesses. These include balance sheets and operating statements to track performance and support strategic decisions. Our reports adhere to accounting standards while providing actionable insights for growth.
Payroll Services
Comprehensive payroll services handle all aspects of employee compensation for small businesses. We manage tax withholdings, wage distribution, and regulatory filings to ensure compliance. Clients receive streamlined solutions that reduce administrative burdens and avoid penalties.
Trust & Estate Services
We assist executors and trustees with managing estates and trusts efficiently. Services include asset valuation, tax filings, and distribution planning to honor beneficiaries' needs. Our expertise ensures compliance with legal requirements while preserving client legacies.
People
John W. Halloran
CPA
John W. Halloran is a certified public accountant with extensive experience in tax and financial services. He specializes in supporting small businesses and individuals with accounting, payroll, and estate planning needs. His practice emphasizes personalized solutions and client education through accessible digital tools.
Questions
What accounting services do you offer for small businesses?
We provide bookkeeping, payroll processing, financial statements, and business tax returns tailored to small business needs.
How can I access financial tools and resources online?
Our Online Office platform offers financial calculators, tax updates, and client newsletters for active financial management.
Do you assist with individual tax preparation?
Yes, we prepare individual tax returns and provide planning strategies to optimize personal financial outcomes.
What estate planning services are available?
We support executors and trustees with trust administration, asset distribution, and tax compliance for estates.
How do you stay updated on tax law changes?
We monitor regulatory updates and incorporate them into client advisories through monthly newsletters and direct consultations.