A friend forgot the last 90 day reporting but was overdue 8 days so would have had to expect to pay 2000 Baht fine.

Meanwhile he left the country (without any remarks about the 90 day reporting status at the airport).

When he returns he naturally will start on a fresh 90 day period as per the rules. He however wonder whether the PREVIOUS 90-day-non-reporting could somehow "pop up" at next reporting (requirering a fine) or whether him leaving the country for sure has started him on a fresh basis?

Anybody knows?

Cheers!

A friend forgot the last 90 day reporting but was overdue 8 days so would have had to expect to pay 2000 Baht fine.

Meanwhile he left the country (without any remarks about the 90 day reporting status at the airport).

When he returns he naturally will start on a fresh 90 day period as per the rules. He however wonder whether the PREVIOUS 90-day-non-reporting could somehow "pop up" at next reporting (requirering a fine) or whether him leaving the country for sure has started him on a fresh basis?

Anybody knows?

Cheers!

Pretty sure he would be ok, as you are allowed 7 days either side of the reporting date anyway

Well - maybe he was 10 or 14 days overdue when he actually left.....

You said 8 days. In any case do not believe they are likely to check beyond proof of an entry stamp 90 days before his current report. But being in the future computers could come into play by that time and entry/exit date be flagged. Don't believe likely but would visit with some extra baht for fine just in case.