I'm going to KL for a non-O 1 year visa next week. For all my previous non-O visas (issued outside Thailand) I have never had to show 400K in the bank. I thought this was only required if extending the visa in Thailand.

Do I need to show proof of funds in KL next week ?

This was a special requirement that Singapore had for issuing Multi Non-O visas. Singapore does not issue them at all now, according to recent reports.

KL may or may not issue a multi entry visa. The 400k was a requirement that Singapore was using for issue of the multi entry - it was not a requirement anyplace else. At last report Singapore has ceased issue of multi entry.

You should have marriage certificate, signed copy of wife id/home register and it may be good to have some financial account information if asked.

Extension for family requires 40k per month income - can be husband/wife or combined.

thanks. Will report my experience in KL.