Yes, absolutely. There is no limit to the number of times you can take the test, but you cannot take TOEFL more than once in a 3-day period. This applies even if you canceled your scores from a previous test. If you already have a test appointment, you cannot register for another date that is within 3 days of your existing appointment. TOEFL: 12-day gap between attempts). IELTS does not have any waiting period.
