KB Kookmin Bank Opens KB Card Ssudam Jeokgeum at Up to 12% on August 21

On Friday, August 21, 2026, KB Kookmin Bank began selling KB Card Ssudam Jeokgeum (KB카드쓰담적금), a six-month installment savings account — the Korean product type known as jeokgeum (적금) — that can pay up to 12.0% annual interest before tax when customers meet KB Kookmin Card spending and other banking milestones. Subscriptions are first-come, first-served, limited to 100,000 accounts.

The launch landed as Korean households compare jeokgeum rates across major lenders, following the Bank of Korea’s July 2026 policy-rate increase and a broader shift of savings back into guaranteed bank deposits.

Editor’s note: This article draws on DigitalToday, Newspim, Asia Business Daily, and Herald Business reporting from August 21, 2026. Product terms, sales caps, and preferential tiers may change after publication.

Product terms at a glance

KB Card Ssudam Jeokgeum is a card-linked installment savings product sold by KB Kookmin Bank with KB Kookmin Card. Terms announced on August 21:

Feature	Detail
Product name	KB Card Ssudam Jeokgeum (KB카드쓰담적금)
Type	Six-month jeokgeum (monthly installment savings)
Monthly deposit range	10,000–300,000 won (about $7–$212), flexible each month
Sales limit	100,000 accounts, first-come, first-served
Base rate	2.0% per year before tax
Maximum rate	12.0% per year before tax if all preferential tiers apply

Customers can subscribe through KB Kookmin Bank branches and mobile banking channels. A bank official urged early sign-up given the account cap, according to Korean business media.

How the 12% jeokgeum rate works

The advertised 12.0% ceiling is not a flat base rate. KB Kookmin Bank starts from 2.0% and adds up to 10.0 percentage points in conditional bonuses:

Preferential tier	Bonus (per year)	Condition (summary)
Credit card usage	+6.0 percentage points	Meet KB Kookmin Card spending requirements
Average account balance	+2.0 percentage points	Satisfy an average-balance threshold on linked accounts
First salary transfer	+2.0 percentage points	Complete a first salary deposit through the bank

Customers who meet all three tiers reach the 12.0% maximum. Partial compliance yields a lower blended rate. As with other Korean jeokgeum products, stated yields are typically before tax, with withholding applied at maturity.

The structure follows a pattern seen across rival lenders — including Shinhan Bank’s high-yield jeokgeum promotions earlier in August — that pair modest base rates with large bonuses tied to card spend and payroll activity.

Why jeokgeum rates are moving

Korean banks have been adjusting standard deposit and jeokgeum rates since the Bank of Korea lifted its seven-day base rate from 2.50% to 2.75% on July 16, 2026. KB Kookmin had already moved flagship one-year time deposits toward the 3.2% band and raised online jeokgeum ceilings into the mid-3% range in late July.

Financial-sector data cited in Korean media show household money rotating from short-term savings and equity-linked products back into bank deposits as yields climb. The five major commercial banks held roughly 965 trillion won in time deposits as of mid-August, while balances in some MMDA-style accounts fell sharply — a pattern analysts describe as savers prioritizing guaranteed returns over market swings.

KB’s 12% capped jeokgeum sits at the aggressive end of that competition: a limited-quantity offer aimed at card-active customers and new payroll relationships, not a blanket rate increase on existing accounts.

What to verify before opening

Promotional jeokgeum accounts carry conditions that headline rates alone do not show:

• Account cap: Once 100,000 subscriptions are filled, the product closes regardless of the six-month term.
• Monthly limits: Deposits must stay within the 10,000–300,000 won monthly band; missing or exceeding payments can affect preferential tiers under standard jeokgeum rules.
• Conditional bonuses: The 6% card tier, 2% balance tier, and 2% salary tier each require separate qualification — missing one blocks the full 12% payout.
• Tax treatment: Stated rates are pre-tax; net returns depend on individual tax status and withholding rules.
• Comparison shopping: Rival banks are running their own high-yield jeokgeum promotions with different caps, card requirements, and maturity lengths.

Households weighing a switch should compare base rates, eligibility windows, and sales limits across lenders rather than the banner percentage alone.

Outlook for Korean savers

Analysts quoted in Korean business press expect continued deposit-rate adjustments while funding costs stay elevated after the July central-bank move. Limited-quantity jeokgeum launches like KB Card Ssudam Jeokgeum are likely to remain a marketing tool — alongside routine base-rate pass-through — as banks compete for sticky card-and-payroll customers.

For savers, the practical question is whether the conditions required for a top-tier rate fit their spending and banking habits, and whether a six-month jeokgeum aligns with their savings timeline before caps fill.

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Discussion

A 12% jeokgeum headline draws attention, but the conditions behind it can matter as much as the number on a banner.

1. Would you restructure card spending or salary deposits to chase a capped 12% jeokgeum — or prefer a simpler base-rate account near 3%?

The trade-off is maximum yield versus eligibility rules, sales limits, and a six-month lock-in.

2. If you already hold a jeokgeum at another Korean bank, does a first-come, first-served cap change how quickly you would open a new account?

Or would you wait to see whether rival lenders match the offer?

If you have compared Korean installment savings products recently, what mattered most — the advertised top rate, the base rate, or how easy it was to meet card and payroll conditions?

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