Your scores are based on your performance on the questions in the test. You must answer at least one question each in the Reading and Listening sections, write at least one essay, and complete at least one Speaking task to receive an official score. For the TOEFL iBT test, administered via the Internet, you will receive four scaled section scores and a total score:

Reading Section (Score of: 0–30)
Listening Section (Score of: 0–30)
Speaking Section (Score of: 0–30)
Writing Section (Score of: 0–30)
Total Score (0–120)

In addition to your scores, your test taker score report also includes performance feedback that is a reflection of your performance level and a description of the kinds of tasks that test takers within the reported score range can typically do.
There is no passing or failing TOEFL score; individual higher education institutions and agencies set their own score requirements. TOEFL scores are valid for two years after the test date and there is no limit to the number of times you can take the test, but you cannot take it more than once in a 12-day period. If you already have a test appointment, you cannot register for another test within 12 days of your existing appointment.

More than 9,000 colleges, agencies and other institutions in over 130 countries accept TOEFL scores. Other organizations rely on TOEFL scores as well:

Immigration departments use them to issue residential and work visas
Medical and licensing agencies use them for professional certification purposes
Individuals use them to measure their progress in learning English

For more details, please click on www.ets.org/toefl