When do I need to renew my NON O visa extension if my report is due?

90 day reports and extension of stays are completely separate documents.

You have to do a 90 day report NO LATER THEN October 16. You can do it 15 days before the due date and 7 days AFTER the due date without a fine IN PERSON, or online using

Immigration web-portal [best option];



Android eServices application;



iPhone eServices application;

?l=th

15 days before UP TO the due date.

>When do I have to renew my annual extension

You will not renew any extension, you will be purchasing a new extension of stay. I am assuming you have a stamp in your passport saying "Extension of stay approved October 31, 2021". The LAST DAY you can apply for a new extension of stay based on whatever reason (I don't know what your extension of stay is) is October 31, 2021. SOME immigration office allow you to apply for a new extension of stay 30 days in advance, other immigration offices allow you to apply for a new extension of stay 45 days in advance.

My advice would be to do your 90 day report AND purchase a new extension of stay based on whatever reason at the same time, or somewhere around early October.