Made 90 day report in February....left the country in mid-March and will leave again in another two weeks. Upon returning, next 90 day report will be due mid-July.

Do I need to retain the 90 day report slip from February for any reason or is that considered irrelevant now? Main reason for the question is to ascertain whether I need to mail it in with my next 90 day report.

In the past I have always removed the 90 receipt slip from my passport before going through immigration on leaving Thailand.

I have then just filled in a new 90 day report based on my date of return and have not had anything question.

(I have always had the old receipt available but has never been asked for)

Best to keep it until you get the receipt for your next report in case their is any questions. ,There is no requirement to send it with your report.

Just be sure you include copies of all your departures and entries when you mail in your report. It does not hurt to highlight them on the copies.

Thanks very much for the responses.