Unlimited Courses - 1 Year

Online TESOL DiplomaAre you interested in taking more than one course with us? UNI-Prep's Institute offers a variety of Certificate and Diploma level courses in the subject areas of Teaching English, Business, Marketing, Management and Quality Assurance. Our courses are suitable for entry-level and seasoned business professionals seeking to enhance their knowledge in a variety of disciplines. If you are interested in taking seveal different programs, UNI-Prep's unlimited course package is the best package. It allows you to take as many online courses as you would like within a period of 1 year from all of the online courses offered by UNI-Prep. This includes Certificate level and Diploma level courses in any subject area. Some of the courses included in this package are the following:  

✔ TESOL Certificate and TESOL Diploma

✔ Business Administration Certificate and Business Administration Diploma

✔ Project Management Certificate and Project Management Diploma

✔ Marketing Management Certificate and Marketing Management Dipoma

✔ HR Management Certificate and HR Management Diploma


For a full list of courses, browse through our website. Any online course you find on our website is included within this package. 

Benefits of Unlimited Course Package

  • Take as many courses as you would like (all programs included)
  • All courses are online, can be done from anywhere
  • 1 year access to all courses
  • Electronic Certificate/Diploma e-mailed to you
  • Original Certificate/Diploma mailed internationally
  • Tutor support included
  • Accredited and internationally recognized courses


To register for the online TESOL Diploma course,
click the registration button.


$1,950 $999 USD


1 Year



Videos About Our Programs

Online TESOL Why UNI-Prep?

Why Should You Choose UNI-Prep to be Your TESOL Provider?

This short video gives some of the many reasons why UNI-Prep offers the best TESOL Certificate and TESOL Diploma programs.

TESOL Certificate and Diploma FAQs

FAQs Video

ŸThis video covers topics such as:

✔ What is the difference between the TESOL Certificate and Diploma?

✔ What are the entry requirements?

✔ Do I need to have teaching experience?


What People Are Saying

Leilanie Lee

Papara, Tahiti

“Uni-Prep Institute is first-rate. The TESOL Diploma program features excellent teachers who help you master teaching strategies and develop skills on your feet in the classroom. I have learned just how valuable this training is and I am delighted to recommend them."

Conan Lopez

Guadajalara, Mexico

“Taking the TESOL Certificate course with UNI-Prep was a wise decision. It's the cheapest program available and I could take it at my free time. I'm planning on also taking the TESOL Diploma with them. I definitely recommend this school to study at."

Accreditations & Affiliations

Accreditat Logo

online tesol diploma course, teaching diploma, advanced teacher training, accredited advanced teacher training, accredited tesol diploma course

250-hour TESOL, advanced teacher training program, tesol diploma course