First, there are two separate Expat clubs in Pattaya - The Pattaya City Expats Club (PCEC) and the Pattaya Expats Club (PEC) - each with their own website. Where DocTom got the quote he used is a mystery to me as I cannot find that particular quote on the PCEC's website - as for the PEC, they have limited information on Thai Immigration matters - their page on visas shows it was last updated on 5th April 2024. But it has a link to the PCEC's webpage for Latest Immigration Information - which kept up to date on a regular basis. DocTom's quote of what he says is from a PCEC webpage: "Note: The embassies of Australia, the United Kingdom, and the United States will not provide such a letter, thus holders of passports from those countries must meet the 800,000 baht deposit in a Thai bank requirement to qualify." The PCEC's has several webpages on Thailand's requirements for entry, extensions, reporting, etc. They have two pages that show documents required for retirement extensions of stay. The link Liquorice provides above is to the PCEC's documents checklist. They also have another general page with more information about retirement extensions of stay. Both pages note the documents required by Chonburi (Pattaya) Immigration for retirement extensions. Excerpts from the PCEC's general page ( https://pcec.club/Chonburi-Immigration) show: "The only supporting documentation usually required if your Embassy or Consulate in Thailand provides a Letter to Thai Immigration, is their letter certifying the amount of your monthly income. Most Embassies/Consulate should provide such letters. Each will have their own requirements as to any documentary evidence they require to issue the Certification. Note: Several Embassies including those for the UK, USA, and Australia do not provide such certifications. See below for documents required if your Embassy does not provide a certification letter. ...If your Embassy does not provide a Certification letter on income, Immigration requires the applicant show proof by having transferred at least 65,000 baht into their Thai bank account..." [it lists the same documents as shown in the checklist quoted above by Liquorice]