What documents are required to apply for a shopping tax refund ?
The text is a topic summary for "Required Documents for Shopping Tax Refund Application." It lists the necessary documents needed to apply for a tax refund, including a passport or travel document, receipts and invoices, a tax-free form, credit card or bank statement, boarding pass or flight itinerary, customs declaration form, and shipping documents (if applicable). The text also mentions that once all the required documents are gathered, the tax refund application can be made at the airport or through the designated tax refund office in the city where purchases were made.