Deaf and Hard-of-Hearing ESL follows Inlingua's accredited intensive curriculum with slight modifications to the listening and speaking parts. Deaf students learn English through American Sign Language (ASL). In lieu of listening parts, as part of their social language skills, deaf students read audio-scripts and learn to read captions (subtitles in English) on DVDs and TV. Instead of speaking, they use the text feature on their mobile phones, instant messaging, and emails. Special speaking/listening lessons can be arranged for deaf students who want them. Deaf students learn all aspects of social language in English like greetings, asking for directions, filling out applications and conversational skills to include phrasal verbs, idioms, metaphors, collocations, inferences, and implications. Once they pass all levels of social language in English, they will be promoted to the levels of academic language proficiency that prepares them for higher education admission.

The policy of Inlingua strives to encourage all students, deaf students included, to complete the whole program within 18 to 24 months. Inlingua also provides private instruction for the students (deaf students included) who prefer a one-on-one instruction or a smaller class of 2 to 3 students. A regular class at inlingua consists of 4-9 students and, if available, this also applies to 4 or more deaf students. TOEFL and IELTS are accessible to deaf students. After completing the program, deaf students who achieved the required scores on either TOEFL or IELTS will be eligible to receive International Baccalaureate from inlingua.