IELTS scores (TRF or eTRF) are typically valid for two years from the date of the test.
After this period, the scores may no longer considered official for most purposes, including university admissions and some visa applications. If you plan to use your IELTS results beyond the two-year mark, you may need to retake the test to obtain updated scores.
It's essential to check with specific institutions or organisations to confirm their score validity requirements, as some may have different policies.
It is recommended you check all information regarding visa and English language requirements directly with the Immigration New Zealand website.