About Our Firm

Established in 1995, Mary P. Hollister, CPA PC focuses on helping businesses and individuals realize their financial goals. We are—above all—a local firm. We believe in the power of community and in building relationships with our friends and neighbors that stand the test of time. We’ve served Whitehall and the surrounding areas for more than 15 years, and are dedicated to using our expertise to help its citizens to thrive.

We deliver the personal, one-on-one attention and support of a small firm, coupled with technological savvy and convenient online capabilities on par with larger firms. All of our services are supported by efficient technology infrastructure that offers 24-hour access to your financial information. Regardless of the day, hour or location, you have convenient, confidential access to your financial data with a few clicks of a mouse.

Meet Our Team

Client Center

(QuickBooks Online)

Join a scheduled video meeting with our staff.

Using Your Client Organizer
How to Review My 1040
Using File Exchange
Using Your 1040 Tax Portal

Contact Us

29 Hollister Road
Whitehall, NY 12887-4229


Phone: 518-499-2072
Fax: 888-MARY CPA


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...and get what you need, when and where you need it!