Purchasing goods exempt from certain taxes, typically import duties and local sales taxes, is generally associated with international travel. These goods are often available in designated airport shops located after security checkpoints in the departure areas of international terminals. Travelers typically present their boarding pass and passport to confirm their international journey before making a purchase.
The availability of tax-free shopping opportunities is often viewed as a benefit for international travelers, allowing them to acquire goods at potentially lower prices than in domestic markets. Historically, duty-free shops emerged as a way to cater to the needs of international travelers and boost airport revenues. This model, however, is less relevant to domestic travel where passengers are not crossing international borders and are therefore not subject to the same import regulations.