When is my next 90-day reporting date after extending my Thai visa?

As far as i know..90days have allowance of 7days after the due date of 90days before the officer start counting 2,000 THB penalty

You should report your 90days already start this week before the expiry date to avoid penalty..

90days is separate from NonB visa.😊

Happy to help

A 90 day report is just that, report every 90 days if you haven't left the kingdom. You will know that you have reported by the presence of that slip in your passport, and when you next need to report by that same slip. 90 day reporting has nothing to do with extensions.

Thank you both. I appreciate the clarification that the situation is different. It was not clear from the original post what visa he had. BTW, in my situation, I have a multi-entry Non-B, so it may differ from the OP's situation.

@James *******

is that accurate if this was his first extension on his visa? Per Samui Immigration website, it says "The first application for extension of stay by the foreigner is equivalent to the notification of staying in the Kingdom over 90 days." Doesn't that mean the first 90 day report was considered done when the first extension was approved? I am in a similar situation where my original admitted to date was May 13th but I got a 60 day Covid extension granted on April 23rd good through July 12th so don't know if I actually have a 90 reporting requirement due now or not till July 12th.