Typically, a fully accredited TEFL certification course will last anywhere from 4 weeks to 6 months. Shorter, 4-week long courses will generally run full-time (30-40 hours per week) and are very demanding.
Not only does a TEFL certification not expire, it's also accepted worldwide.
Depending on how the course is structured, a 120-hour TEFL course can take anywhere from one month to six months. Shorter courses are more intensive and require full-time study.
While a Level 5 qualification can help to boost your CV and make it easier to secure work it won't give you a salary bump. Salaries in the TEFL industry are typically determined by experience, so entry-level teachers can expect to earn the same, whether they have a 120-hour, Level 5, or CELTA qualification.
Is TEFL Certification worth it? Yes. If you want to get a good teaching job and be an effective teacher for your students, then it is definitely worth it. Remember, most schools worldwide require a TEFL certification; and once you're certified you can the ball rolling on applying and interviewing for jobs.
It is very rare for any student to fail an International TEFL Academy TEFL Certification course. International TEFL Academy has a passing rate of over 90% (one of the highest passing rates of any TEFL school worldwide).
If you don't have a degree don't let that stop you from teaching English abroad! While many countries do require teachers to have a degree there's no need to despair if you don't have one – there are still plenty of countries where you can find work.
If you don't have a teaching license and are seeking an overseas teaching job, you should have both a bachelor's degree and a TEFL certificate. With these under your belt, you may be lucky enough to find ESL teaching jobs in countries such as China, Japan, and Korea.