Thank you for the clarification.. which was not included in your original post.. this makes it crystal clear.. but since the OA appears to be British he cannot use the income method.. and will be forced to use the capital method.. so between us he will get the guidance he needs in the end.. cheers 👍
Your Uk marriage certificate will need to be certified by the British Embassy.. and a translated copy (into Thai) will need to be certified by the MoFA here in Thailand.. it's a mind numbing job to do yourself unless you happen to live in Bangkok.. we used an agent to do it so as to avoid travelling and to expedite the process.. and they included a translated and certified copy of my passport.. which i didn't know i was going to need until much later in my life here.. so this was forethought on their part.. the cost was around 5,000 baht and the whole process took around 3-weeks.. so you really need to get this underway soonest.. bearing in mind it could take longer if you go the DIY route.. once you have it you can register your marriage at the local amphur and obtain the Kor Ror 22 mentioned above.. these documents will enable you to obtain a yellow book for your marital home (assuming wife has the blue book) from the municipality.. which in turn will enable you to get a pink ID card from the amphur.. all valuable IDs and will serve as proof of address moving forward.. and also necessary to open a bank account.. these were the requirements at Bangkok Bank at least.. and will no doubt make things easier if you are approaching a different bank.. once your money is transferred into your Thai account you should obtain the confirmatory letter from the bank (get it the day before you go to immigration) and make sure your passbook has been updated to current day.. then get 2 copies of everything to support your non-o application.. though I'd personally recommend you get 6 copies of every document and keep the extra copies in readiness for your next renewal.. not to mention many other situations that may arise once you settle into every day Thai life.. it will save you time and money in the long run.. good luck with it my friend 🙂
One caveat regarding the proof of funds.. it is my understanding that you cannot use the 'income method' for your first non-o visa application.. this can only be used at renewal.. so you have to use the capital method for your initial application.. and look to convert to the income method later should you wish to do so.. though i accept that you may get different interpretations at different immigration offices!
Why not apply for a 60-day tourist visa at an overseas, embassy.. then look to extend it by 30-days in-country.. which gives you 90-days in Thailand.. then leave for a period before looking to repeat the process.. though an immediate return is not adviseable since immigration might construe it as playing the system to achieve permanent residence.. tourists generally don't stay in Thailand for more than 3-months continuously.. and people that leave for a few days and then try to return are increasingly coming onto immigration's radar.. the message is to get an appropriate visa for your purpose at outset instead of using border bounces to prolong your stay.. and judging by reports this message is getting louder!
Was recently in CF immigration doing a 90-day report and asked them the question.. was told only the main office near the airport deals with visa applications.. whether it's a new visa or extension 👍
Jumped through all these hoops myself.. non Thai marriage certificate has to be translated into Thai and stamped by MFA in Thailand.. but original also has to be stamped by embassy of country of marriage.. we used an agent in CM to handle it all.. so as to avoid having to fly down to Bankgkok ourselves.. they included a translated copy of my passport in case of need as well.. and was well worth the cost given the saving on flights etc.. one of the few occasions that agents really make sense imo.. process took around 2-3 weeks.. once documents are to hand marriage needs to be registered at your local Amphur and certificate of registration obtained.. I'd suggest you get 3-4 original stamped copies.. you need this to apply for a 'non-o' visa based on marriage.. you also need it to apply for a yellow book and a pink ID card later.. be aware some Amphurs try to retain your original stamped certificate of translation.. i told mine they could have it if they reimbursed me for the cost of it.. and they eventually backed down and took a copy they certified for themselves.. but it took some serious haggling to achieve that! Clearly different provinces and different amphurs have their own 'rules' but that's the gist of it.. good luck!
Simple solution mentioned many times here already.. but I'd check in to a hotel for 2 nights just before you intend to apply for your extension.. they will file a TM30 for you and usually do so on the day you check in.. ask them for a printed copy of the TM30 registration they do online.. then go to immigration the next day with it and apply for the extension.. then move to accommodation of choice for the rest of your stay.. provided you leave the country without any further interactions with immigration.. then a subsequent failure to do a TM30, (ie. by your next landlord) won't matter at all!
The married visa is a 'non-o' visa and he should apply for it in country.. generally speaking when he has 30 days left on his exemption stamp.. though some offices may stipulate waiting until 15 days unexpired.. there is no need to extend the initial stamp at all.. since the non-o process grants an initial 90-day stay (visa) which is then rolled into the 12-month non-o.. so it's possible to avoid the cost and bureaucracy of the
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day extension of stay by simply going straight for the non-o.. but it's essential to check out the specific requirements of the immigration office being used to get all your ducks in a row ahead of time.. you must have had your marriage registered at your local amphur and have a registration certificate.. best to get 3-4 copies properly stamped as originals.. and if you were married overseas (ie. outside of Thailand) that will necessitate having a translated copy of the marriage certificate properly notarized.. if you need to do this and live in the country where you were married then i suggest you get this done before you come to Thailand.. otherwise you'll need to engage an agent to do it for you once you're here.. since the process is very cumbersome.. especially if you are not living in Bangkok where most of the foreign embassies are located.. once marriage registered immediately apply for a yellow book at the local municipality.. this serves as proof of address for everything in Thailand and will make life much easier when applying for your visa (and at renewal) and when dealing with banks etc.. it also enables you to apply for the Pink ID card..which is akin to a farang national ID card albeit issued locally.. and is recognised by many institutions here.. such as the LTO when applying for (or renewing) your driving licence.. all these documents make interacting with immigration much easier.. imo, that's largely because you have demonstrated a real commitment to settling down and staying here permanently to support your Thai wife and family!
In CM it's a 30 second stop at the drive through kiosk at the main immigration office.. or alternatively go to the one at L2 Central Festival.. usually a 5 minute exercise!
So long as they haven't mis-spelt the names that do appear on your ticket it will be fine.. a spelling mis-match between passport and ticket is much more problematical!