The joy of payday lasts about a few days. Soon you check the balance and think, "Where did it all go this month?" — even though you didn't splurge on anything in particular.
The most common reason money leaks is simple: everything flows in and out of one account. When fixed costs and spendable money sit together, "money in the account" feels like "money I can spend." The fix is to split your accounts by purpose and have payday scatter the money automatically.
Split into four accounts
Nothing fancy — these four are enough.
- ① Salary account — where your pay lands. Spend nothing here; the day after payday, auto-transfer to the others.
- ② Fixed-cost account — rent, utilities, phone, subscriptions. Point all your automatic debits here.
- ③ Living-expense account — food, transport, shopping. Link your debit card to this account only, so you spend only what's here.
- ④ Savings & emergency account — savings, investing, emergency fund. The key is to set it aside first, not "save whatever's left."
The secret is the transfer order
Splitting accounts alone does nothing. Set auto-transfers for the day after payday so the money reaches its place before you can touch it.
Salary account → (next day, automatic) → fixed costs, savings, emergency fund → only what remains is living expenses. This makes "save first, spend the rest" happen by itself.
If ratios stump you, a common starting point is living 50 · saving 30 · fixed 20. It's not a rule — adjust it to fit after a few months.
FAQ
Is it fine to open this many accounts?
Yes. You can open several checking accounts, and most Korean bank apps now let you split into purpose-based sub-accounts easily.
Does this fail if I use a credit card?
A debit card is easier for spending control. If you use credit, set the billing account to your "living-expense" account and spend within that balance.
How much emergency fund should I keep?
3–6 months of living expenses is the usual benchmark — covered in more detail in a separate article.
Often it's not that you have no money — you just can't see the flow. The moment you split accounts, the leaks become visible.
This is general information; the right approach varies with your finances.
