Key takeaway — Large gifts to adult children should be evaluated only after estimating the parents' lifetime spending, healthcare and care reserves, housing needs, and pension income.
Reviewed August 20, 2026. Tax, pension, mortgage, and guarantee rules can change; verify the current official rules before applying, signing, or transferring money.
1. Calculate the future funding gap before looking at today's asset balance
A portfolio can look large in won terms yet still be fragile if a substantial amount must be withdrawn every month for many years. Start with the difference between expected spending and reliable pension income.
2. Create a separate allowance for irregular large costs
Average monthly spending does not fully capture healthcare, long-term care, major home repairs, or relocation. These potential needs should be visible before deciding what capital is truly surplus.
3. Money given away may be difficult to request back
Helping an adult child with housing or another major goal can be valuable to the family, but parents may find it difficult to reverse the transfer if their own finances later deteriorate. Compare the retirement cash-flow plan before and after the proposed support.
4. Check gift-tax rules separately at the time of transfer
This guide deliberately does not hard-code a gift-tax answer. Exemptions and tax treatment depend on current law and family relationships, so use current National Tax Service guidance or professional tax advice immediately before a large transfer.
Official sources
- National Pension Service — Old-age pension guidance
- National Tax Service — Pension income tax guidance
Money & Why note: This is general educational information, not an individualized buy/sell instruction, guaranteed return, or legal, tax, or investment advice. Apply the framework to your own income, debt, taxes, family situation, and time horizon.