Accounting Firms and CPAs in Long Island, NY

Growing businesses in Long Island, NY need more than basic bookkeeping. Porter Accounting LLC provides controller oversight, fractional CFO guidance, GAAP financial reporting, ASC 606 revenue recognition, and audit readiness, with accurate books as the foundation. Virtual services make experienced financial guidance accessible while tailored solutions address growth, cleanup, reporting, and complex accounting needs.

Accounting professional reviewing financial reports at a desk

Our Accounting Services

Controller, fractional CFO, GAAP reporting, and audit readiness support for growing businesses, with bookkeeping and cleanup underneath.

Controller Services

Receive month-end and year-end close oversight, financial data review, accrual adjustments, budget tracking, cash flow monitoring, and management reporting.

Fractional CFO

Gain experienced financial leadership through cash flow forecasting, budgeting, KPI tracking, financial analysis, and strategy aligned with your business goals.

GAAP Financial Statements

Prepare GAAP-compliant financial statements for lenders, investors, and stakeholders while supporting accurate records and recognized accounting standards.

Audit Readiness

Organize reconciliations, supporting schedules, and PBC lists, tighten internal controls, and respond to auditor requests so your team can work alongside external auditors with a clean close.

Monthly Bookkeeping

Record and categorize transactions, reconcile bank and credit card accounts, and prepare monthly financial statements through plans tailored to business activity and reporting needs.

Accounting Cleanup

Catch up overdue bookkeeping, correct financial record errors, and organize your books for lending decisions, investor review, or improved financial visibility.

Beyond Basic Bookkeeping

Turn Financial Data Into Clarity

Porter Accounting LLC helps growing businesses move from scattered records to clearer, more reliable financial information. Support can include recurring bookkeeping, GAAP reporting, controller oversight, cash-flow insight, process improvement, and strategic guidance. With practical experience across complex accounting challenges, the firm develops tailored solutions that help owners and executive teams understand performance and use their numbers with confidence.

Advisor explaining financial performance to a business owner
The Porter Difference

Why Choose Porter Accounting LLC?

Get experienced financial support without the complexity associated with a large accounting firm.

Technical Expertise

Hands-on experience with GAAP reporting, ASC 606, ERP implementations, audit readiness, and complex cleanups.

Tailored Support

Accounting and advisory solutions are shaped around your operations, goals, reporting needs, and business complexity.

Executive Collaboration

Collaborative guidance helps leadership teams understand financial performance and make informed business decisions.

Broader Perspective

Combine bookkeeping, reporting, process improvement, controller, and fractional CFO support through one partner.

Meet the Founder

Experienced financial leadership for growing businesses and executive teams.

Portrait of Thao Porter, Accounting Leader at Porter Accounting LLC

Thao Porter, MSA

Accounting Leader

Thao Porter is an experienced accounting leader with over a decade of expertise supporting growing companies across SaaS, manufacturing, construction, consumer packaged goods, retail, and franchise industries. As the Accounting Leader at Porter Accounting LLC, she specializes in GAAP reporting, revenue recognition under ASC 606, ERP implementations, and audit readiness. Thao has a proven track record of streamlining close processes, improving cash flow, and strengthening internal controls for the businesses she serves. She partners closely with executive teams to enhance financial visibility and support strategic decision-making, helping clients move beyond basic bookkeeping toward clear, actionable financial insight. Holding a Master of Science in Accounting, Thao is committed to delivering practical, high-quality financial guidance to growing businesses throughout the United States, ensuring every client gains confidence in their numbers and their path forward.

Frequently Asked Questions

Should I get an accountant for my small business?

An accountant can be valuable when bookkeeping becomes difficult to manage, financial records need cleanup, reporting must support lenders or investors, or leadership needs better visibility into cash flow and performance. Porter Accounting LLC supports growing businesses with bookkeeping, financial statements, payroll support, budgeting, controller services, and fractional CFO guidance, allowing owners to focus on operations while improving financial organization.

What accounting services does Porter Accounting LLC provide?

Can you provide accounting services virtually?

What does monthly bookkeeping include?

When is fractional CFO support useful?

Can you help with ASC 606 revenue recognition?

Can you clean up overdue or inaccurate bookkeeping?

How do I get started with Porter Accounting LLC?

Can Porter Accounting LLC help a Long Island business prepare for an audit?

Have More Accounting Questions?

Talk with Porter Accounting LLC about your business’s financial support needs.

Service Areas

Virtual support is available nationwide, with appointment-based in-person service in listed areas.

United States

Virtual Coverage

San Francisco

Listed Local Area

By Appointment

Service Format

Need Accounting Support In Your Area?

Ask about virtual availability or appointment-based service options.

Bring Clarity To Your Business Finances

Share your accounting needs and receive guidance on the most suitable support for your business.

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