Most JET participants are issued with a work visa with a 3-year Period of Stay*. As you approach the end of your Period of Stay, you will have to renew your visa before it expires. Therefore you must apply for an extension. This is known as an “Extension of Period of Stay” (在留期間更新 zairyū kikan kōshin). You may apply for an extension 3 months before your visa expires. Please note that you may lose your status of employment even if you go over even one day without extending your visa.
*Note: Although it is extremely common for new JETs to be issued with a 3 year Period of Stay, it is not guaranteed. Please check the date of expiry of your Status of Residence on your Residence Card and ensure to apply for extension at the appropriate time, regardless of your year on JET.