The next TOPIK test outside Korea will be held in October, 2018. You can check the Registration period and contact details of affiliated institutions in your country in the document below. Please note that more countries may be added to the list later. If your country is not there in the list even by the end of July, you may have to wait for the November TOPIK test.
If you want to take the test in Korea, you should check October 2018 TOPIK registration details in Korea.
* The list is not final and new locations may be added later. Other details may also change. Confirm the details with the concerned institutions.