ah OK that wouldn't work then... unless you didn't mind leaving 400k untouched

How about you get the 6 or 12 monthly payment (which I'm sure would be more than 800,000 baht), transfer the whole lot into your Thai account, let it sit for the required waiting period and then apply for the visa based on having over 800,000 in the account?

Then you use the money over the course of the year, and repeat the process the following year making sure you transfer it all to Thailand in enough time for the funds to season in your account before renewing the visa?

Sorry, I just realised I misread the original comment last night - for some reason I thought it said 'non-b to non-o' (rather than specifically marriage).

If you mean change from an extension based on work to an extension based on marriage, the answer is yes - that's what I did. Didn't have to leave the country, just gave them the certificate I got from the labour office that stated I had left me job, along with all the other documents required for an extension based on marriage.

Potential follow up question - yes, I still got a work permit while staying on the marriage extension when I got another job

Yeah, or you can do it yourself with a tm28 instead. That's what I have to do, because my landlord is usually out of town.

But my main point was that the landlord isn't doing your 90 day check for you - he's just updating your whereabouts. And you still have to do the 90 day check separately

But if you forget to update your location, immigration will spot it next tkme you do the 90 day check

The 90 day report and the tm30/tm28 are different things.

We have to check in at immigration every 90 days (the clock is reset if you leave and re-enter the country).

Immigration also need to know where we're sleeping every night. If we're at a hotel, they have to report that we're there (tm30). If we go back home, we (or our landlord) have to report that we're home (tm28). This is unrelated to the 90 day check, which we still have to do whether we registered our location or not.

Cheers

Moving to Chiang Mai. I guess pretty likely to do a visit

Good advice thanks very much