Lump-sum Lease vs. Monthly Rent

Jeonse involves placing a large deposit and living without monthly rent, while monthly rent means a small deposit plus a payment each month. Jeonse developed particularly in Korea.

Jeonse spares the tenant a monthly outlay, but ties up a large sum. The return that money could have earned elsewhere is a real opportunity cost.

For the landlord, jeonse resembles an interest-free loan. That is why jeonse shrinks and monthly rent grows when interest rates are low — the deposit no longer generates a return.

The test is comparing what the deposit could earn against the rent. If interest on the deposit exceeds the monthly rent, renting monthly is better; if it falls short, jeonse is.

The critical issue with jeonse is securing the deposit's return: check prior claims on the property register, establish the tenancy's legal date and registration, and consider deposit guarantee insurance. Borrowing to fund the deposit changes the calculation again. The loan interest functions much like rent, so it should be compared directly against the monthly rent.