When we sit with expatriate households near Pyeongtaek or in Seoul, we routinely find ₩3–8 million in physical cash held for specific local obligations: hagwon fees paid in cash, landlord deposits collected in won notes, market vendors who do not accept cards, and emergency taxi fares when card networks fail during a typhoon weekend.
These reserves are not negligence. They are a response to how local commerce still operates in pockets of Korean daily life, especially in areas surrounding military installations and older commercial districts.
The Obligations That Drive Physical Holdings
School and academy fees. Several international schools and local hagwons near Camp Humphreys still accept or prefer cash payments for certain fee categories. Families who budget annually set aside won in labelled envelopes timed to payment windows.
Landlord and utility deposits. Rental agreements in older Pyeongtaek neighbourhoods sometimes specify cash deposit collection. The household must hold the exact denomination mix the landlord requests.
Remittance timing gaps. Families sending money home may hold won until a favourable conversion window opens, then exchange in person at a licensed counter. The interim holding period can stretch across weeks.
Emergency liquidity. Power outages, ATM network disruptions, and card fraud freezes happen. A household with ₩500,000 in a home safe can pay for groceries and fuel while resolving a frozen debit card.
The Documentation Problem
The issue is not holding physical reserves — it is failing to document them. We encounter households where the spouse who counts the reserve each month has the only accurate record, written in a notebook that travels in a carry-on bag. When that spouse deploys or relocates early, the remaining family member discovers envelopes without context.
A Practical Starting Point
Before any formal playbook session, we recommend households complete a simple three-column log: location, denomination breakdown, and stated purpose. Update it on the first Sunday of each month. Photograph the log and store the image where both spouses can access it.
This single habit prevents the most common continuity failure we see: a reserve that exists but cannot be found or understood by the person who needs it next.
Request a Household Cash Mapping session if your household needs help creating the initial log.