CELTA or TESOL for Private Tutoring
Really, anyone can call themselves an ESL tutor or teacher and find private clients. There are no licensing requirements (that I'm aware of) as there are, for example, lawyers. Of course, it is certainly a better selling point to actually have some training in teaching ESL.
One way to get training to teach ESL to adults or to children is to take a certification course. When you start to look into certification courses, you find that there are two main certifications: CELTA and TESOL.
CELTA stands for Certificate in English Language Teaching to Adults. TESOL stands for Teaching English to Speakers of Other Languages. Possession of either of these certificates shows that the ESL teacher has been through a certificate training program and has been taught the necessary "tools" to teach English.
So which certificate is right for you? Personally, I have a TESOL certificate. Although I had the option of studying for either certificate, I chose the TESOL because that was the ESOL certificate that was more popular in the area in which I planned to teach.
Thinking about where you want to teach and inquiring about the preferred certificate in the area is the approach I would take (and did) to determine which certificate to earn.
I don't have a convenient list of all the TESOL training locations, but here's a thorough list of the CELTA course locations.








