The IELTS (International English Language Testing System) certificate is valid for two years from the test date.
After this period, most institutions, immigration authorities, and employers consider the results expired, as language proficiency can change over time. If you plan to use your IELTS score for studying, working, or immigration purposes, it is crucial to check the specific requirements of the organization you are applying to, as some may have exceptions or additional conditions.
Always ensure you take the test at the appropriate time to meet application deadlines and validity requirements.