Corwin & Jenkins CPAs Inc. is a Cleveland-based accounting firm serving businesses and individuals in Cuyahoga, Lake, and Geauga counties as well as many out of state areas.  We focus on business and personal tax preparation and assist local attorneys on probate and estate tax matters. In addition, we specialize in accounting and bookkeeping services for small businesses and start-ups.

Tax year 2020 due dates for estimates

Corwin & Jenkins is committed to making the process of filing taxes as easy and efficient as possible. We offer a unique way to provide tax documents and other materials in a paperless fashion, while still adhering to all applicable state and federal privacy and security laws. We are proud to offer a way for clients to remain paperless throughout the tax filing process with the use of an encrypted website. If you would like to be a paperless client, please call the office and request to be made paperless. We will set you up with an account for our website. Below is a link to the secure website:

Paperless Client Website (Client Portal)

Experience You Can Trust

commitment to the environment

Corwin & Jenkins CPAs


Our office will be closed to the public during the Stay-At-Home Order. If you need to drop off your documents, please mail them to our office, use the drop box by our office door, or utilize the online client portal.
if you have any questions you can reach us via email,, or phone 440-954-3399.

Our drop-box is located right outside our office for convenient after-hours drop off.


Individual Estimates :

First Quarter Estimate: April 15, 2020

Second Quarter Estimate: June 15, 2020

Third Quarter Estimate: September 15, 2020
Fourth Quarter Estimate: January 15, 2021

Individual 1040:

April 15, 2020

Business 1120:

April 15, 2020

Business 1120S & 1065:

March 16, 2020

Individual 1040 with Extension:

October 15, 2020