Credit Loans in Korea: Lump-Sum Loans vs Overdraft Lines

What a credit loan is

In Korea, a credit loan is lent without collateral such as a home or deposit, on the basis of the borrower's income, job and credit history. Since the lender has no property to sell if it is not repaid, it judges ability and willingness to repay from income and past records. So the same person usually gets a higher rate and smaller limit than on a secured loan. In return, paperwork is light, use is less restricted, and it can be obtained quickly online. That convenience is also the biggest risk: because it is easy, people use it for spending that is not really necessary, or take small amounts from several places and lose track of total debt. When considering a credit loan, the order is to decide first whether you truly need to borrow and when and how you will repay, before comparing rates. A credit loan taken without a plan also shrinks the limits on your other loans.

Two forms: lump-sum loans and overdraft lines

Credit loans come in two main forms. A lump-sum loan pays a fixed amount at once, which you repay as agreed; interest accrues on the full amount from day one, and repayment is either a bullet at maturity or installments. A credit line, called a minus account in Korea, sets an agreed limit within which you draw and repay as needed. The amount by which the account balance goes below zero is the loan, and interest is charged only on the amount and period used. You can repay and redraw at any time, which is flexible, but for the same conditions the rate is often set slightly higher than for a lump-sum loan. A lump-sum loan suits a one-off need with a clear repayment plan; a credit line suits irregular spending you expect to use briefly and repay. Either way, it affects the limits on other loans, and falling behind on either has a significant effect on your credit score.

• Lump-sum loan: received at once, interest on the full amount, repaid as agreed
• Overdraft line: draw and repay within a limit, interest only on what is used

How the limit is set

Credit loan limits are set mainly by income and repayment capacity. Lenders look at documented annual income, employer and length of service, credit score and existing debt together. For the same income, longer service, steadier income and less existing debt mean a larger limit. Regulation adds a ceiling. Annual repayments on credit loans also enter DSR, which compares repayments on all loans to income, so if you already have a mortgage or installments, the room for a credit loan shrinks. For bullet-repayment credit loans, even though you actually pay only interest, the DSR calculation assumes, under the rules, that principal is repaid over a set period and includes that share. Authorities have also at times asked banks to keep credit loan limits within annual income to manage household debt, so the same person's limit can differ over time.

What sets the rate

Credit loan rates also follow the benchmark plus spread minus discounts structure. Short-term bank bond yields or COFIX serve as benchmarks, and the spread depends on the borrower's credit score, income, job stability and the lender's business policy. With no collateral, spreads vary widely between borrowers. Discounts come from relationship conditions such as salary deposits, card spending or automatic transfers, and if you stop meeting them the discount may be dropped at the next rate reset. When comparing, check the rate you can actually get with your credit and conditions, not the minimum in advertisements. Checking rates through comparison services or at several lenders generally does not affect your credit score, but actually borrowing from several places increases debt and affects both your score and other loan limits.

Hidden features of overdraft lines

An overdraft line seems painless because you pay interest only on what you use, but several features matter. First, when calculating lending rules, the full agreed limit is generally treated as debt, not the amount used, so an untouched credit line can reduce your mortgage limit. Second, interest is usually not debited separately each month but added to the negative balance. Interest piles up like principal and earns interest the following month, so if left alone the balance grows faster than expected. Third, exceeding the limit or failing to cover interest within a set period can be treated as arrears. Fourth, a balance that stays negative for a long time is effectively a long-term loan you are not repaying. If you set one up as an emergency buffer, keeping the limit only as large as needed is safer.

• Rules generally count the limit, not the amount used
• Interest is added to the balance and itself earns interest
• Exceeding the limit or unpaid interest can become arrears
• Always negative means, in effect, a long-term loan not being repaid

Term and extension

Credit loans are not decades long like mortgages; they are commonly agreed for a relatively short term and then extended. Bullet credit loans and overdraft lines in particular are often agreed for about a year at a time and reviewed for extension at each maturity. Extension does not automatically keep the same terms. The rate is reset according to your credit score, income, employment and other loans at that time and the lender's policy, and the limit may shrink or you may be asked to repay part. If you changed jobs, your income fell or other loans grew, the terms are likely to worsen. So check the maturity date in advance and plan repayment so you can cope if extension is refused or the limit shrinks. Installment loans reduce principal over time, so extension risk is relatively smaller. When you receive an extension notice, be sure to check the new rate and limit.

Common misunderstandings

Misunderstandings about credit loans often stem from their convenience. It is easy to think an unused overdraft line is as good as none, but under the rules the whole limit counts as debt and reduces other loan limits. Thinking a rate obtained when rates were low will last is also mistaken; a variable rate resets each period, and a bullet loan's rate is reset at each extension. Taking small amounts from several places can seem fine because each is small, but a rapid increase in loans from several lenders can count against you in credit evaluation and later reviews. The idea that repaying a high-rate card loan with a credit loan is always a gain is only half right: you save the rate difference, but if you leave the card limit open and use it again, the debt doubles. With credit loans, the plan to reduce them matters more than getting them. Because they are convenient, you must set your own rules for paying them down.

• Thinking an unused overdraft line is as good as none
• Thinking a rate once obtained will stay
• Thinking small amounts from several places are fine
• Thinking switching loans by itself reduces debt

Checks before borrowing

Because credit loans come quickly, the self-check before borrowing matters all the more. First confirm the money is really needed and cannot be covered by your emergency fund or by adjusting spending. If you decide to borrow, set only the amount needed and choose the form, lump-sum or credit line, that fits the use. Then decide the monthly repayment and the date you will be fully paid off, and check total interest with a loan repayment calculator. If you plan to take a mortgage or jeonse loan later, use a DSR calculator to see how much the credit loan will reduce that limit. Finally, check the product description for the rate reset interval, discount conditions, early repayment fees, extension conditions and the overdue rate. Some credit loans have no or low early repayment fees, so see whether you can repay early when you have spare money. Writing this order down once lets you judge by the same standard when you are in a hurry.

• 1. Confirm the money truly needs to be borrowed
• 2. Decide the amount and form (lump-sum or credit line)
• 3. Calculate monthly repayment, payoff date and total interest
• 4. Check the effect on future loan limits
• 5. Check rate reset interval, discounts and extension conditions
• 6. Check early repayment fees and the overdue rate

Situations people ask about most

Many people want an overdraft line instead of an emergency fund. It can serve as a buffer for sudden expenses, but its limit reduces other loan limits and its terms can change at extension, so keep it to the minimum and set a rule to refill it as soon as you use it. If you want to consolidate several credit loans and card loans, you can consider refinancing after comparing rates and fees. The key, though, is not to use the freed-up limits again afterwards. If you plan to take a mortgage soon, be especially careful about the timing of any new credit loan. It can fill up your repayment-to-income room first and reduce the mortgage limit, and under the rules some credit loans taken around a home purchase can carry restrictions. If you are about to sign for a home, talk to your bank before taking on any new loan.

• Overdraft line as a buffer: keep the limit minimal, refill after use
• Consolidating several loans: do not reuse the freed-up limits
• Before a mortgage: talk to the bank before any new credit loan

Limits and disclaimer

This guide is a general explanation of how credit loans work in Korea. It does not recommend any lender or product or judge whether an individual can borrow. How credit loan limits are calculated, the period over which principal is assumed for regulatory purposes, how overdraft lines are counted, guidance on limits relative to income and restrictions on credit loans around home purchases have changed with government policy and lender practice and may change again. The same person can get different rates and limits from different lenders and at different times. Products, terms and regulations differ by company and over time, so before signing, check the product description and terms and confirm the latest criteria with the Financial Services Commission, the Financial Supervisory Service and your bank. If repayment looks likely to become difficult, contact the lender or a public debt counselling service before you fall behind. Arrears affect your credit score for a long time.