@Richard *****
Because the DTV is a tourist/nomad visa, it has serious limitations compared to a proper Retirement Visa/ Extension:
Banking & Investing: On a DTV, you are a transient visitor; banks and brokerages often refuse to open investment or stock trading accounts. A retirement extension grants true residency status, making it easy to open local accounts, trade on the SET, and manage wealth.
No 180-Day Border Hoops: The DTV forces you to leave the country (or pay to extend) every 180 days. A retirement extension gives you a full 365 days of uninterrupted stay. When you return from abroad, IOs treat you as a resident returning home, zero grilling at the border.
Social Security (SSO): If you worked in Thailand before under Section 33, a retirement visa gives you the stable legal status needed to transition to Section 39. You can take over your own payments and keep full Thai medical coverage for around 432 THB/month. You can't cleanly link local SSO to a DTV.
The DTV is an extended tourist pass. If you actually live here, the retirement visa provides the infrastructure for a low-stress, settled life.