Why these calculators?
Korean payslips, leases and benefit rules use terms that rarely appear in English guides: 4대보험 (four major insurances), 퇴직금 (severance), 주휴수당 (weekly holiday allowance), 전세 (jeonse deposit lease) and 평 (pyeong). Each calculator explains the rule in plain English, shows the formula and links to the official agency.
Most tools on Semjigi are in Korean. If you read Korean, the Korean site has 154 tools including policy loans, stock taxes, a budget planner and everyday utilities.
Results are estimates based on rules in force for 2026 and are not legal, tax or financial advice. Visa-specific rules (pension refunds, employment insurance coverage) vary; confirm with the agency linked on each page or call 1345 (Immigration Contact Center) / 1350 (labor).