Contributing 9 million won across a yeongeum-jeochuk (private pension savings account) and an IRP returns up to 1,485,000 won in tax credits. But the credit is deferral, not exemption — the net figure needs its own calculation.
On the same 100 million won severance payout, the tax is 14.5 million won after three years of service but only 240,000 won after thirty. The service-year divisor is what splits them.
A pension savings fund can only hold domestically listed ETFs, and leverage and inverse ETFs are prohibited. A 0.5 percentage point difference in total fees separates roughly 11 million won over 20 years of 6 million won annual contributions — here is the order of checks to confirm.