Located in the heart of the Finger Lakes Region, Custom Accounting Services, Inc. is the premier small business resource for all industries. Our exceptional staff has years of experience in all areas of accounting and business advisement.  We cover all the issues you may face in our constantly changing economy.

Our services range from:

Our offices, located in the Grant Avenue Plaza, are home to a beautiful facility convenient for our local clients. Whether we are close to home for you, or if you are one of our many clients dotted across New York State and around the country, you will have access to our online Portal. Any time, day or night, you can exchange and view documents back and forth with our staff here at CAS. 

Current customers may link to our PORTAL here.

*Our firm is authorized to electronically file all returns, verify employment eligibility and is a Certified Acceptance Agent for the IRS. 


If you love CAS, there may be more in store for you...

Custom Business Services is a co-op membership of small businesses that work together to provide the most comprehensive level of professional service to all their customers. Members G. Chipman Insurance Agency, Inc. and Custom Accounting Services, Inc. are devoted to financial awareness and economic opportunities for small businesses everywhere.

Custom Business Services is also home to The Ruth E. Carpenter Memorial Training Centera versatile space that hosts courses and seminars that are sponsored by the membership and open to the community.

Click here for more information on our facility rentals and co-op membership. Our next member could be you!