How long before the due date can I renew my retirement visa in Thailand?

The renewal period for a retirement visa in Thailand varies by location and can range from 30 days to 3 months before the expiry date. Common practices from different regions include: - Chiang Mai: Typically 30 to 40 days. - Sri Racha: Up to 2 months. - Bangkok, Phuket, Krabi, and Buriram: Generally allow renewal 45 days or less. - Jomtien: Up to 3 months prior. - Koh Samui: 30 days. - Hua Hin: 45 days. Due to these variations, it is advisable to check with the local immigration office for specific rules applicable to your area.