Cash Receipt Phone Number Registration Guide
This content applies specifically to South Korea. Receiving cash receipts through a phone number is not enough to claim an income deduction: you must register that number in Hometax, the tax service portal. Check the transaction history the day after registration to see whether the receipts appear. Register the number, then check the deduction In Hometax, open the cash receipt section for employees and consumers, then the menu for managing issuance methods, meaning the numbers or cards used to identify receipts. Check the phone number used at payment and register or correct it. Under the law effective September 18, 2026, general cash receipt spending has a 30% income deduction rate, compared with 15% for general credit card spending. Combined annual eligible spending must exceed 25% of total wages. A deduction reduces taxable income; it does not return 30% of spending in cash. Checking these conditions helps you judge which recorded receipts can count toward the deduction. A man ...