TESOL qualifications

TESOL Certificates and Diplomas:


The Trinity Certificate in TESOL (CertTESOL) is an initial teaching qualification that provides a firm foundation for English language teaching. It is available as a part-time, face-to-face, online, or blended course through a validated course provider. Find out more...


The Trinity Teaching Young Learners Extension Certificate (TYLEC) is designed to equip English language teachers with the knowledge and skills they need to teach young learners aged 7–12 years. Find out more...

Trinity Teach English Online

Trinity Teach English Online is a modular online self-study course that can lead to a Trinity Certificate in Online Teaching (CertOT). Find out more...


The Trinity Certificate in Online Teaching (CertOT) is the assessment and qualification component of the Trinity Teach English Online course. Find out more...


The Trinity Certificate for Practising Teachers (CertPT) promotes the acquisition and refinement of specialist skills needed to develop and use effective teaching resources with professional insight. Find out more..


The Trinity Diploma in TESOL (DipTESOL) is an advanced, internationally respected qualification for experienced ESOL/EFL teachers who want to refine their expertise and take their career to a more senior level. Find out more...

Find a course

Visit our Find a course page to discover where you can take a course leading to a Trinity TESOL qualification.

The Trinity TESOL suite of qualifications

Assessment for the CertOT qualification focuses on the knowledge and skills necessary for online teaching in general, which means it’s suitable for English language teachers from a variety of different contexts and settings. The table below illustrates how the CertOT can be used to supplement an initial or advanced teaching qualification for the purposes of continuing professional development in TESOL.

TESOL qualifications table (pdf)

Trinity Teach English Online

Take your teaching to the next level with our online teaching course and qualification:

Full course of 10 units plus CertOT qualification entry - £299.99

Buy full course + CertOT qualification entry

Full course of 10 units - £174.99

Buy full course

Alternatively, you can take just the modules or individual course units.

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