Usually the IRL versions (TAX, ATX etc.) are examined only in June and December.
Can I ask you how did you study TAX-IRL? So far, I’ve done all the papers through self-study using the OT notes and lectures, but as you mentioned, those aren’t available for TAX-IRL. Did you take a course with a tutor or did you just use Paula Byrne’s textbook? Does the book include both the theory and the exam kit?