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Strategic Financial Leadership

Trusted Tax & Accounting CPA Firm for Small Businesses

Personalized accounting and a winning strategy to maximize tax savings for individuals and small businesses in Manhattan, NY and Tri State Area.

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The Colella CPA Advantage

Strategic Planning

Drive growth with practical financial strategies tailored to your goals.

Cost Effectiveness

Maximize resources with streamlined, tax-efficient solutions.

Business Planning

Transform your ideas into actionable, sustainable success.

Expert Accounting Services to serve all your tax and accounting need

With decades of experience and deep industry insight, Colella CPA helps clients turn complex financial challenges into opportunities. From tax planning to business consulting, we guide you with proactive strategies that deliver results. 

Strategy development for growth
Team leadership and organizational alignment
Availability across U.S. time zones
Full-spectrum business advisory
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Years of Experience
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Projects Completed
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Team Members
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Clients Served

Why Clients Choose
Colella CPA

Personalized attention and clear communication
Proven track record of accuracy and timeliness
Local knowledge with nationwide capability
CPA-led service — no handoffs to junior staff
Straightforward pricing with no hidden fees

Our Core Services

Personal Tax Returns & Filing

Streamlined, accurate, and compliant — we help you file with confidence while identifying every deduction you deserve.

Business Startup Services

From entity formation to tax registration, we help you launch the right way — legally, financially, and strategically.

Outsourced Accounting

Full-service accounting without the overhead. Reliable monthly reports, reconciliations, and insights to keep you informed and in control.

Bookkeeping Services

Keep your books clean, current, and audit-ready. Our cloud-based bookkeeping services bring clarity to your finances.

Tax Planning and Strategy

Proactive tax planning that minimizes liabilities and aligns with your personal or business goals — not just during tax season, but year-round.

Business Tax Preparation

We prepare accurate, compliant business tax returns while looking for every opportunity to reduce your tax burden.

S-Corp Setup

Maximize tax savings with S-Corporation election. We handle the setup and ensure your business is structured to minimize self-employment taxes legally.

Payroll Services

Fast, compliant payroll with built-in tax filings. Perfect for small businesses that want to pay their team — and the IRS — on time.
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Industries We Serve

Medical and Dental Practices

Legal Professionals and Law Firms

Consultants and Independent Contractors

Startups and Entrepreneurial Ventures

Tailored for You: 

 We understand the distinct financial challenges in your profession — and we offer custom strategies that work. 

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Client Testimonials

Mark Colella has been doing our taxes for years. He has always been very thorough and answers any questions we might have. He also advises us on our future financial concerns.Highly recommend his services.

Phyllis kaye

Thorough, knowledgeable and always have their clients’ fiduciary interests at the forefront of the firm’s platform. Personalized service and attention to detail make Colella CPA ideal for various client types, which makes them truly easy to recommend.

Richard Sansaricq

Highly, highly recommend Colella CPA CO, PC. Working with Mark made our tax filing process easy, and we deeply value his help and advice for our small business.

Steph Lenhart

Mark gave me extremely quick service. Actual one day. Took all docs via email which made it all very easy. And got me a great return. I will definitely be using him again and referring him to my friends.

pgh006

There are so many bars in NYC that if you don't run yours correctly it's a harsh reality that you will not succeed. Thankfully I found Colella Accounting through a friend and they have helped me stay afloat and even managed to come out ahead last quarter. I would highly recommend Mark and his team to any business looking for a solid, professional accountant.

Gerald Busch

I have dealt and been a client of Colella PC for 16 years. I found them to be best in class in terms of professionalism, reliability, along with their highly kind and attentive care of my matters.

Faris Nabulsi

Mark and his team are a great asset to running my restaurant smoothly. I do not have to worry about anything as he has such an in-depth knowledge of working within the industry. Without Colella I'm not even sure my restaurant would be open! Thank you!

James William

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Let’s Simplify Your Finances

    Let’s Simplify Your Financial Life

     Whether you’re managing taxes, growing a business, or preparing for the future, we’re here to help — with clarity, care, and commitment. 

    Book a Free Consultation

    Colella CPA Company — Serving New York and the Tri-State Area with trusted tax, accounting, and bookkeeping expertise. 

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    Colella CPA Company — Serving New York and the Tri-State Area with trusted tax, accounting, and bookkeeping expertise. 

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