Build reliable financial operations, gain a clearer view of cash and performance, make tax decisions before the window closes, and be ready when a lender, external auditor, or buyer puts the numbers under greater scrutiny.
Prefer to call about becoming a client? (631) 677-1344
You do not need to choose an accounting service before reaching out. Most conversations begin with one of three business situations.
You need a reliable close, useful reporting, experienced oversight, and proactive business-tax planning without building every finance role internally.
Often includes: Client Accounting Services and Business Tax
Explore Business Accounting & TaxA lender, investor, external auditor, buyer, or planned sale is creating new demands for accurate records and organized support.
Often includes: Client Accounting Services, Audit Readiness, or Transaction Advisory
Explore Financial ReadinessYou need nonattest controls consulting for an important process or formal or co-sourced capacity for defined internal-audit work.
Often includes: Controls Consulting or Internal Audit
Explore Internal Controls & Risk SupportWe provide ongoing accounting and tax support with focused help for external deadlines, transactions, and internal controls. Services can be coordinated where appropriate, with responsibilities and professional boundaries defined for each engagement.
Reporting, tax, financing, and ownership questions vary by industry. Our work is shaped around those differences.
The firm has served privately held businesses since 2005, with work scoped around each company’s needs and existing team.
Accounting, business tax, readiness, and internal-control needs can be considered together as the company evolves.
We define responsibilities around the people, systems, and advisers already in place, adding only the capabilities the business needs.
Founded in 2005, John W. Halloran CPA, P.C. serves privately held businesses across Long Island.
Managing Partner John W. Halloran, CPA leads the firm’s professional accounting and tax practice. Managing Director John W. Halloran, Jr., CFA leads the firm’s CFO Advisory practice, as well as its business development, marketing, technology, and growth initiatives.
Meet our leadershipConnect forecasts, estimated payments, ownership changes, multistate questions, and significant decisions to a planning rhythm that begins before year-end.
Explore the Planning RhythmWe help established privately held businesses with ongoing accounting and tax needs or focused readiness, controls, or transaction support, and private clients whose complex tax needs benefit from year-round planning and coordination.
A few sentences about your business, ownership, or family tax picture and timing are enough to start. We generally respond within one business day.
Prefer to call about becoming a client? (631) 677-1344
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