The Thailand eVisa cost refers to the fee required to process an online visa application for entry into Thailand. The amount depends on the visa category such as tourist, business, education, or transit, as each type has different processing requirements. The payment is made digitally during the application through the official eVisa system. The fee covers administrative handling, document verification, and approval processing. It is important to note that the cost is non-refundable even if the application is not approved. Applicants should always check the official Thailand eVisa portal for the most accurate and updated fee structure before applying for travel to Thailand.