Financial Clarity.
Strategic Growth.
Lasting Results.
For over 35 years, Harrington & Associates has been the trusted financial partner for New York's most discerning businesses and individuals — delivering precision, integrity, and results.
All client data is protected under strict confidentiality agreements and AICPA ethical standards.
Services Tailored to Your Financial Goals
Every engagement begins with understanding your unique situation. We then apply 35 years of experience to build solutions that are precise, proactive, and built to last.
Tax Planning & Preparation
Strategic tax planning that goes beyond filing. We identify opportunities, minimize liability, and build multi-year strategies that compound savings over time for businesses and individuals alike.
- Corporate & individual returns
- Multi-state tax compliance
- Year-round tax strategy
Business Accounting
Full-cycle accounting services including bookkeeping, financial statement preparation, cash flow management, and management reporting — delivered with the precision and reliability your business depends on.
- Monthly financial statements
- Cash flow management
- Accounts payable & receivable
Audit & Assurance
Rigorous, independent audits performed by PCAOB-registered professionals. Our audit process provides the credibility and compliance assurance that stakeholders, lenders, and regulators require.
- Financial statement audits
- Internal control reviews
- Compliance audits
CFO Advisory Services
For growing businesses that need senior financial leadership without the overhead of a full-time CFO. Our fractional CFO service delivers strategic insight, financial modeling, and board-level reporting.
- Fractional CFO engagements
- Financial modeling & forecasting
- M&A due diligence support
Estate & Trust Planning
Comprehensive wealth transfer planning that protects your legacy, minimizes estate taxes, and ensures your assets reach the people and causes that matter most to you.
- Trust formation & administration
- Estate tax minimization
- Fiduciary accounting
Payroll Services
Fully managed payroll processing with guaranteed compliance — from federal and state payroll taxes to W-2 preparation, benefits administration coordination, and HR reporting.
- Full payroll processing
- Tax deposit & filing
- Multi-state payroll compliance
"When I founded this firm in 1987, I made a commitment that every client would receive the same attention I would want for my own family. That commitment has never wavered — and it never will."
35 Years of Precision and Partnership
Harrington & Associates was founded in 1987 on the principle that accounting is not merely a compliance function — it is a strategic advantage. Over the decades, we have grown to serve more than 450 business clients across industries ranging from real estate and healthcare to technology and professional services.
What distinguishes us is not just our technical depth, but the depth of our client relationships. We think like your CFO, your board advisor, and your fiduciary — because that is exactly what we are.
Senior Expertise at Every Level
Every client at Harrington & Associates works directly with a named partner — not a rotating cast of associates.
Thomas R. Harrington
35 years of experience advising New York's most complex businesses. Specializes in corporate restructuring, M&A tax strategy, and high-net-worth family office planning. Named a "Top 100 CPA" by Accounting Today three consecutive years.
Catherine Walsh
Leads the firm's audit and assurance practice with 20 years of experience across publicly traded companies, non-profits, and private equity portfolio companies. Previously with Deloitte's New York office for 8 years.
Marcus Chen
One of New York's foremost experts in international tax compliance and transfer pricing. Advises multinational companies and high-net-worth individuals with cross-border financial interests across 30+ jurisdictions.
Sarah Okonkwo
Leads audit engagements for clients in the technology, healthcare, and real estate sectors. Known for her meticulous approach and the clarity she brings to complex financial reporting questions.
A Process Built on Clarity
From first conversation to long-term partnership, every step is designed to maximize value and minimize uncertainty for our clients.
Initial Consultation
A confidential, no-obligation conversation to understand your financial situation, goals, and pain points. This session is free and typically lasts 45–60 minutes.
Financial Analysis
Our team conducts a thorough review of your financials, identifies opportunities and risks, and benchmarks your situation against industry standards to find where value is being left on the table.
Custom Strategy
We deliver a tailored financial strategy with clear recommendations, projected outcomes, and a defined timeline. You receive a written proposal with fixed, transparent pricing before any engagement begins.
Ongoing Partnership
Our relationship doesn't end at implementation. We provide quarterly reviews, proactive alerts on tax law changes, and regular strategy check-ins to ensure your plan evolves with your business.
What Our Clients Say
A 98% client retention rate is the only metric that truly matters.
“Harrington & Associates transformed our financial strategy from reactive to proactive. In our first year, they identified $183,000 in tax savings we had no idea we were leaving on the table. Their CFO advisory work has become indispensable to our board.”
“Thomas and his team have navigated us through a Chapter S election, two real estate acquisitions, and an audit — with the same calm professionalism every time. The 4-hour response guarantee is real, and it matters when decisions move quickly.”
“The depth of expertise on international tax compliance at Harrington is exceptional. Marcus Chen structured our transfer pricing across four jurisdictions in a way that saved us millions. This is a firm that genuinely understands complexity.”
Frequently Asked Questions
We operate on a fixed-fee model — you receive a written proposal with all costs clearly defined before we begin any engagement. This means no billing surprises, no hourly overruns, and no ambiguity. Our fees reflect the complexity and scope of each engagement, and we are transparent about them from the first conversation.
Start Your Free Consultation
The first step is a conversation. Tell us about your situation and we will reach out within one business day to schedule a no-obligation consultation with a senior partner.