Eikaiwa and dispatch companies vs JET
Large eikaiwa chains and ALT dispatch companies are the most common route into teaching in Japan, and most accept an accredited 120-hour online TEFL alongside a bachelor's degree. They're mainly checking that you can legally work and that you have some structured training behind you.
JET (the Japan Exchange and Teaching Programme) is different — it's a government scheme with its own annual application cycle, and a TEFL is not a stated requirement at all; JET selects mainly on degree, references and interview. Don't assume a TEFL improves your JET odds without checking the current JET application guidance.
