Our mission is to provide clients with affordable and efficient income tax, financial, and more profesional services. We strive to offer ample solutions to the needs of our clients, through systems that guarantee quality and satisfaction.


In 2025 ITYM will be the most distinguished company in the state of Illinois offering income tax, financial and more professional services contributing to the welfare of the community.


ITYM is a family owned and operated business founded in 1996 by Mariana I. Tamayo, MBA. The company began in the basement of Mariana’s first home in Des Plaines, Illinois with the sole purpose of helping her community.

Despite the size of this first location, ITYM grew tremendously and became the go-to-place for any professional services needed in the community.

In 2007, in response to the growing clientele, ITYM built its own office building located in Des Plaines in order to cater to its client’s needs.

Throughout the years ITYM has gained important recognition in the community, because of the quality services it provides.

ITYM has undergone important changes throughout the years, however, its founding vision has not changed.

When visiting our offices, you will be greeted by qualified and experienced professionals ready to assist you in any service needed.

We have created this website to aid you in searching for updated information regarding our services including: Income Tax Preparation, Accounting & Financial Services, Professional Translation and Interpretation, Apostilles and many other services.

Our office is open year-round!

Thanks for visiting us!


  • Des Plaines Chamber of Commerce
  • Illinois CPA Society (ICPAS)
  • American Institute of CPAs (AICPA)
  • National Society of Tax Professionals
  • Association of Latino Professionals for America
  • IRS – Registered Tax Return Preparer (RTRP)
  • IRS –  Annual Filing Season Program Participants
  • IRS – Certified Acceptance Agents
  • Authorized IRS E-File Provider (ERO)
  • American Translator Association