The UK government legalisation department in the UK WILL forward a marriage document on to the Thai embassy in london for legalisation, the big question is would they (or the MFA here) legalise a financial document. Even so, and even if proof of your financials were only legalised in the UK. Nothing stopping you doing that and submitting it to support your case. I’ve not seen any precedents...
Ray Derrick standardisation would be a luxury. Unfortunately it’s a luxury us farangs cannot expect. It’s easy to drift into the logistics or the politics of it, Tod (or Robert) quite rightly usually step in and cut these debates short, as this forum is strictly factually based with people feeding in their experiences for collective learning and awareness. I have however followed the changes for the documentation changes relating to the retirement/over 50 extension to stay. I’d love to to debate the politics but I’d also love to see someone get their documents (bank statements, pension documents etc) legalised in the UK (unfortunately I can only comment from a UK perspective) then do the translate/MFA route (the same as marriage affirmation, driving licence and passports are done) and THEN present that as evidence of income. The consulate here (in Thailand) offer limited document legalisation/certification but the U.K. legalisation department WILL legalise other documents. It would be very interesting if someone went to the trouble of doing this (I’m doing it with my criminal record check as the British consulate won’t) and then did the translation + MFA certification (if possible). The bottom line is that your trying 100% to comply with your application then hopefully immigration will take this into account.
I note that you are British. You can get certain documents certified in the UK
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and then possibly accepted by the MFA I’m sticking my neck out here as I’ve not seen anyone mention this possibility... but I’ve been quoted £150 for a lawyer, per document for to certify a bank statement etc if you could then get it translated and approved by the MFA ... just a thought 💭
Ok. Not really a precise answer more of a technique. One I’ve personally used in bank account opening, visa applications, criminal record checks, etc etc. Especially as Tod says, in this case - no one really knows.. try and meet the requirements as best as you can (transfers) take every bit of paperwork you have, if it’s certifiable, get it certified, if you can have it translated - get it translated (MFA if possible/relevant) photos of you and your wife. Dress smartly, smile and hopefully immigration will judge you to be genuine and within their (yet to be clearly defined) criterion.
Tod/Robert can confirm but there’s a 60 day ‘visit family’ option. If it can be done from a visa exempt then it’s the same form, the same cost from the same place?