Michael C. Allen & Co. Certified Public Accountants

for every aspect of your financial life


Our Services

Accounting and Auditing

We provide the highest quality accounting and auditing services to family businesses,…

Bookkeeping for small businesses and corporations

Hiring a CPA firm to manage your company’s bookkeeping is a vitally…

Business Consulting

Business consulting is a large part of what we do at…

Business Planning

Business Planning in New York State by professional accountants at Michael…

Business Valuations

Our professional team has the experience and expertise to provide…

Corporate Tax Returns

The filing of corporate tax returns has become increasingly complex and time-consuming.…

Divorce Matters

For over 20 years, Michael C. Allen & Co. has…

Elder Care

Staying Healthy Healthy Eating for Older Adults Eating a variety…

Estate Planning

Estate planning is rarely a quick, uncomplicated process. Rather, it is…

Estate Tax Return

After the death of a loved one, filing an estate tax…

FBAR(FinCEN Form 114)

FBAR (FinCEN Form 114) Information U.S. taxpayers with an interest…

Fiduciary Accounting

fiduciary are essential. However, the preparation of these accountings is both…

Financial Planning

We begin the financial planning process by identifying our client’s specific needs…

Financial Statements: Audits, Reviews and Compilations

When it comes to the accuracy of your financial statements, error-free,…

Forensic Accounting

Getting divorced in New York?  From divorce analysis to cases…

Gift Taxes

Effective estate and gift tax planning is essential  for providing security for…

Individual Tax Returns

With the complexities of our ever-changing tax code, having a…

IRA Planning

An Individual Retirement Account (IRA) offers tax-advantaged savings for retirement…

Litigation Support

For investigations requiring evidence discovery, we offer professional litigation support services that…

Offer in Compromise

An offer in Compromise (OIC) allows a taxpayer to resolve…

Partnership Tax Returns

If your business entity is a partnership, your business tax…

Payroll Taxes

Keeping compliant with payroll taxes and report filings can be challenging –…

Retirement Planning

Determining your goals for a financially secure retirement and implementing…

Sales Tax

At Michael C. Allen & Co., NY, strategic, proactive tax planning is…

Tax Planning and Compliance

Traditionally, clients have looked to their accountants to minimize their…

Tax Planning and Projections

At Michael C. Allen & Co., NY, strategic, proactive tax planning is…

Tax Preparation Help

Effective, affordable, professional tax preparation help. Minimize your taxes. Maximize…

Trust Tax Returns

Because estate and trust taxation is complex, we offer a…


At Michael C. Allen & Co., we specialize in write-up services that…

the company

Since founding our accounting firm on Long Island in 1989, we have been providing clients in the New York tri-state area with the best accounting, tax, financial planning and business consulting services by matching our services to their specific needs. We take the time to learn your unique business, goals and objectives. Our experienced CPA‘s and Certified Financial Planners then apply their specialized industry knowledge to your unique situation to help you achieve financial success.

We can offer you this level of service because of our structure and size. We are large enough to enable our professionals to specialize, yet small enough to adapt nimbly to your unique situation. Our low staff-to-partner ratio assures our clients’ significant partner attention and continuity of personnel.

We take pride in the professionalism of our partners and staff. Our practice is regularly peer reviewed by the New York State Society of CPA’s. This assures our clients that we can meet our commitment to quality and service for our clients and that our professionals serve our clients in a way that is competent, objective and with due professional care.

We offer a wide range of accounting, tax and financial services for our individual and business clients with offices located in NYC and Lake Success, Nassau County, Long Island, NY and Connecticut. We are a registered Firm with the AICPA, NYSSCPA and the PCAOB, and have continued to receive our NYS/PCAOB peer review certification.

Some of our services include:

Accounting and Auditing, Bookkeeping for small businesses and corporations, Business Consulting, Business Planning, Business Valuations, Corporate Tax Returns, Divorce Matters, Estate Planning, Estate Tax Return, Fiduciary Accounting, Financial Planning, Financial Statements: Audits, Reviews and Compilations, Forensic Accounting, Gift Taxes, Individual Tax Returns, IRA and Pension Planning, IRS Matters, Offers in Compromise, Litigation Support, Payroll Taxes, Partnership Tax Returns, Retirement Planning, Sales Tax, Tax Planning and Compliance, Tax Planning and Projections, Tax Preparation Help, Trust Tax Returns, Write-Ups, FBAR(FinCEN 114) preparation, Streamlined and OVDP Procedures and Penalty Appeals.

Mission Statement

Michael C. Allen & Co. CPA’s PLLC is in the people business.
We provide opportunity for our people and serve the needs of our clients by providing a service of great value.
Commitment to quality underlies all of our actions and plans.
Our focus is on meeting our clients increasing demands for innovative solutions to complex problems and providing world class service…over a long period of time.
We are committed to growth…for growth sustains our efforts and insures our opportunity.
We operate with integrity as it is the cornerstone of our relationships with clients, vendors, and one another.


Gary M. GittlerCPA

Senior Assurance Partner

Michael C. AllenCPA

Senior & Managing Partner

Stacey Glazer

Principal, Chief Operating Officer


Camera Land has been a client of Michael Allen, CPA's for a number of years. As retail has changed, the advice we received from Michael and his firm has helped us grow in all areas of our retail business. We have grown at our brick and mortar location in Old Bethpage and on our web site and on third party platforms like Amazon and Ebay. He enacted cost cutting measures that helped us increase our inventory selection, expand our promotions and increase our social media presence., with the money we saved. I would strongly advise anybody to check with Michael Allen, CPA's before making any important business or personal financial decisions.

Joel Paymer

Camera Land

I have been a client of Michael Allen & Co. for many years and I could not be happier with the tax advice I receive from Michael & his staff. Michael and his team operate with a high level of trust and the utmost integrity. I would recommend Michael Allen & Co. for any tax need from the basic situation to the most complex.


President of Wordclass Payments

I recently became a client of Michael C. Allen CPAs PLLC through a referral from a friend. I wasn’t really looking to switch accountants because I thought it would be a hastle. Also, I thought my prior accountant was “fine” and thought all accountants were the same. When I switched and started using Mary from MCA as my accountant I was thrilled by the responsiveness, attention to detail and actual caring attitude that Mary took to spend extra time with me and my wife. She genuinely wanted to make sure everything was done correctly. Mary was an out of the box thinker and pulled her partner into our meeting immediately to explore a tax efficient structure for our 2020 planning. Mary was super knowledgeable of the tax law changes and I think she is brilliant. It is refreshing dealing with a group of professionals who treat your tax return like it is their own! I cannot say enough good things about this family-oriented, sophisticated group of tax professionals. Five stars for sure.


Moritt Hock & Hamroff LLP

Michael Allen, CPAs has provided me with professional accounting services for over two decades. His team of experts has treated me, my business partners, and my friends and family that I have referred with the utmost respect, courtesy, and professionalism. One could only expect this level of expertise from the finest accounting firms.


Mallilo & Grossman, Attorneys at Law

Leaving our former CPA firm and moving to Michael Allen CPA has proven to be a great decision for our firm. The initial concern about making a "change" proved to be well worth it. We realized the return on this decision in our first year! The scope of their knowledge is not limited to tax preparation and tax planning. They have provided 401K guidance, profit sharing as well as payroll solutions. Michael Allen CPA are professional, reliable, and responsive to all our business needs. They genuinely care about their clients' needs and it shows in the bottom line.


Braverman Reproductive Immunology PC

We love the team at Michael Allen CPA! They are the best.


Aran Insurance Service Group, LLC

I have have been a business owner for over 20 years and have worked with numerous accounting firms. 5 years ago I found myself in an extremely complicated and difficult tax situation. My accountant at the time had no good solution and said I would need to go elsewhere to get more sophisticated support. I interviewed several accounting firms and none had good solutions. I was then introduced to Michael Allen and his team. They took the time to fully understand my issues and then provided we with a plan that sounded great. From that day forward I have had nothing but success with all of my accounting and tax needs. They quickly solved my problems and then provided me with the assistance and support to ensure all of my accounting and tax work was done to perfection moving forward. Michael and his team are the most competent, professional and understanding accounts with whom I have ever worked. I cannot recommend them highly enough.



I am a serial entrepreneur and have used Michael C Allen & Co., CPA’s for all my companies both domestic and international for over 25 years. As a financial adviser and an expert on tax advice, Michael and his staff have been a beacon of credibility for my different businesses. Always available and always decisive in their actions. I would recommend Michael C Allen CPA’s for all business large or small.

Roger Brown

CEO ACS Laboratory LLC