ESTA Fees refer to the official charge required when applying for travel authorization under the U.S. Electronic System for Travel Authorization (ESTA). This fee is mandatory for travelers from Visa Waiver Program countries who wish to enter the United States for short stays such as tourism or business. The total cost is usually made up of two parts: a processing fee and an authorization fee. The processing fee is charged for reviewing the application, while the authorization fee is only applied if the application is approved. If an application is denied, only the processing fee is charged. Payment is made online using debit or credit cards during the application process. ESTA approval is typically valid for two years, or until the passport expires, whichever comes first.