Can I extend a Single Entry Tourist Visa in Thailand for an additional 30 days?

You can extend your Single Entry Tourist Visa (60 days) for an additional 30 days by paying a fee of 1900 baht. However, the timing of your extension request is important; it is generally recommended to apply for an extension when you have 30 days or less on your entry stamp, although some locations may have different rules. It is advisable to check with the specific immigration office regarding their policies.