What is the requirements for renewal of a 1 year retirement Visa if you are married to a Thai national. Before it was possible to get a letter from UK embassy stating the income including UK bank Government pension payment.This would also be allowed. But now is not!Can the UK Pension payment into a UK bank be considered, if one is able to show UK Bank statements?

You will need to show 12 months of transfers into a Thai bank from abroad to prove at least 40k of  income to apply for a extension based upon marriage.

The 40 K income? Can this be shown as also income into a Thai bank not just transfers from UK, but also Thai Bank account income?

1 minute ago, raybarrell said:

The 40 K income? Can this be shown as also income into a Thai bank not just transfers from UK, but also Thai Bank account income?

You can show 400k baht in a Thai bank for 2 months in your name only.

The 40k baht must be transferred from abroad. If it is income legally earned here you can show tax payments to prove the income.

1 hour ago, ubonjoe said:

You will need to show 12 months of transfers into a Thai bank from abroad to prove at least 40k of  income to apply for a extension based upon marriage.

Often wondered about the following:

Would it not be possible for him to let his is present retirement Visa expire, exit Thailand, and then apply at his local IO for a 90-day Non Imm O - marriage Visa?

That way he would only need to prove 1 foreign income transfer of 40 K for the 90-day application, and just continue transferring them monthly so that when applying for his 1-year extension of stay for that Non Imm O - marriage visage he would have at least 3 monthly transfers.

16 minutes ago, Peter Denis said:

Often wondered about the following:

Would it not be possible for him to let his is present retirement Visa expire, exit Thailand, and then apply at his local IO for a 90-day Non Imm O - marriage Visa?

That way he would only need to prove 1 foreign income transfer of 40 K for the 90-day application, and just continue transferring them monthly so that when applying for his 1-year extension of stay for that Non Imm O - marriage visage he would have at least 3 monthly transfers.

That could be done. But best to check with the local immigration to be sure they would accept a few months of transfers.

Retirement extension is separate from Thai family  extension and criteria are different. Th OP stated renewal of 1 year Retirement extension, not Thai family (Thai wife) extension. Being married to a Thai has nothing to do with Retirement Extensions, either Non-OA or Non-O type. OP should understand the requirements for "Thai Wife" extension based on a Non-O are different and documentation is different. 

16 hours ago, raybarrell said:

What is the requirements for renewal of a 1 year retirement Visa if you are married to a Thai national.

If you mean a retirement extension the 'married to a Thai' is not relevant. The requirements, when an Embassy letter is not available, is 800,000 baht seasoned for 2 months in a Thai bank account, or 12 months of 65,000 baht deposited in a Thai bank from overseas. Combination of deposit and income totaling 800k is also possible. 

If you actually mean an extension based on marriage, financials are less,  answers have been supplied. 

On 2/5/2020 at 2:48 PM, asiaexpat said:

Retirement extension is separate from Thai family  extension and criteria are different. Th OP stated renewal of 1 year Retirement extension, not Thai family (Thai wife) extension. Being married to a Thai has nothing to do with Retirement Extensions, either Non-OA or Non-O type. OP should understand the requirements for "Thai Wife" extension based on a Non-O are different and documentation is different. 

When applying for an extension of your permission to stay based on an original Non OA or Non O, you have the choice for which reason you will be extending (e.g. retirement, marriage, dependant child, ...).  Obviously the requirements will be different depending on the option you choose for extending.  The reason for extending does NOT need to be linked to the reason you applied for the original Visa.  So it is well possible to extend an OA Visa for reason of marriage, or switch from a Non Imm 0 - marriage extension to one based on retirement or another reason.