Mark R. Sharkey CPA, CMA, CFM, CIA

Accounting, Bookkeeping, and Tax Preparation

General Information

Work History

 
General Information

Professional/Education:
* Bachelor of Science in Accounting from the University of Illinois - 1993
* Licensed Certified Public Accountant (CPA)
* Certified Management Accountant (CMA)
* Certified in Financial Management (CFM)
* Certified Internal Auditor (CIA)
* Member of the Institute of Management Accountants (IMA)

Contact Information:
Mark R. Sharkey
13929 Long Run Drive
Orland Park, IL 60467

E-mail Mark Sharkey
Calendar of Events

April 15, 2026 - File your 2025 tax return and pay the balance of your tax
October 15, 2026  - File your 2025 tax return if you received a filing extension using form 4868

2026 Estimated tax payments are due as follows:
  • January 1 to March 31 - April 15, 2026
  • April 1 to May 31 - June 15, 2026
  • June 1 to August 31 - September 15, 2026
  • September 1 to December 31 - January 15, 2027
Need Forms or Instructions? Visit the IRS website for forms and instructions

 

Last Updated 1/31/2026