How is the 800k requirement calculated for retirement extension renewal in Thailand?

The 800k baht requirement for retirement extension renewals must be met with funds in your account 2 months prior to your application date, not based on the renewal date itself. For example, if you apply on September 20th, the 800k must be in your account by July 20th. However, there may be inconsistencies with bank policies, so it's advisable to maintain the funds beyond the minimum required.