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Welcome to Cooper Arias LLP

We are pleased to announce our new name, effective May 1, 2013. Cooper, Niemann & Co., CPAs LLP will now be Cooper Arias LLP. Only our name has changed. We are the same group of accounting professionals maintaining the same quality standards, and servicing clients throughout the tri-state and Mid Hudson region.  

Are you looking for a firm large enough to offer a full array of accounting, taxation, auditing and consulting services, but small enough to know you on a personal level? Then look no further than Cooper Arias LLP. The firm started in 1988 as a small one person operation, and has grown today to a staff of 24 in three offices, and includes 7 CPA's, each offering top-notch credentials and experience. Whether you need accounting, auditing, tax planning, estate and trust work, small business consulting, or a full complement of other individualized services, we will give you the full resources you would expect only from a large accounting firm while maintaining the personal touch.

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Member : American Institute of CPAs and New York State Society of CPAs

Tax Center

Our convenient Tax Center provides an array of tax information all in one place. Click here for more information...

Financial Calculators

Our convenient Financial Calculators can help you plan for your future. Click here for more information...

Paycheck Calculators

Click here to use our handy Paycheck Calculators...