Table 4. Example of pension amount calculation (assuming housing price: KRW 300 million, loan maturity: 20 years, housing price change rate: 1%) (unit: KRW)

Mortgage subscriber age 30 years old
Initial housing price 300 million
Loan amount (LTV) 90 mil. (30%) 150 mil. (50%) 210 mil. (70%)
Loan maturity 20 years
Loan interest rate 4.0%
Monthly repayment (CPM) 545,382 908,970 1,272,559
Pension contribution (10% repayment) 54,538 90,897 127,256
Investment return 4.0%
Initial pension age 65 years old
Pension fund at age 65 from mortgage loan 36,411,928 60,686,547 84,961,166
Monthly pension amount (a) 196,876 328,127 459,377
Housing price change rate 3.0%
Housing price at age 65 856,172,743
Monthly housing pension amount (A) 2,109,810
Total pension amount (a+A) 2,306,686 2,437,937 2,569,187
Ratio to housing pension (a/A) 0.09 0.16 0.22
LTV, loan to value; CPM, constant-payment mortgage.