How do you provide evidence of foreign currency funds transferred to Thailand for a retirement visa?

To obtain a retirement visa in Thailand, you need to show evidence of your bank account holding 800,000 THB and provide 5.3 evidence of foreign currency funds transferred to Thailand. This is typically done by presenting bank statements that show international transfer codes. However, immigration offices may have different requirements, so it's advisable to check with your local office. Keeping older bank books as evidence of past transfers may also be helpful, especially since some offices might not require proof of the funds being initially transferred from abroad.