CWON Press

The Bank of Korea has defensible reasons for tightening policy as inflation, household debt and property risks return. But a uniform rise in borrowing costs is hitting small businesses, startups and the self-employed far harder than large corporations. Korea now needs a second policy track: maintain monetary discipline while directing carefully screened liquidity toward productive firms before financial tightening becomes credit starvation.

South Korea has entered a new phase of monetary tightening. On Aug. 27, the Bank of Korea raised its base rate by 25 basis points from 2.75% to 3.00%, following an identical increase in July. It is the first time the central bank has moved directly into back-to-back increases at the beginning of a tightening cycle, underscoring how seriously policymakers are taking renewed inflation pressure, rapid economic growth, household leverage and financial-market risks. The decision is not economically irrational. The Bank of Korea now expects the Korean economy to grow 3.3% in 2026, sharply above its previous 2.6% forecast, with strong semiconductor exports and investment driving the expansion. Consumer inflation slowed to 2.8% in July, but core inflation accelerated to 2.6%, still meaningfully above the central bank’s 2% target. Household credit, meanwhile, reached KRW 2,019.8 trillion at the end of the second quarter after increasing KRW 25.9 trillion in just three months. Yet those same numbers conceal an increasingly important problem: the Korean economy that monetary policy is trying to cool is not one economy. It is at least two.

One part is being powered by semiconductors, artificial intelligence investment, exports, large corporations and capital-market-sensitive assets. Another consists of small and medium-sized enterprises, regional businesses, startups outside the hottest investment sectors and highly leveraged self-employed operators that remain dependent on bank credit and are still absorbing the accumulated financial costs of the post-pandemic tightening cycle. The policy question is therefore no longer simply whether the Bank of Korea should raise or cut rates. The more urgent question is whether South Korea can maintain enough monetary restraint to contain inflation and financial imbalances without depriving otherwise viable businesses of the liquidity needed to survive, invest and employ.

The Rate Hike Has a Strong Macro Case

The Bank of Korea’s argument begins with growth. The semiconductor cycle has turned much stronger than expected, exports and investment remain robust, and improving incomes are expected to support consumption. The central bank now forecasts growth of 3.3% this year and 2.9% next year, both substantially above its May projections. At the same time, officials expect inflation to remain above the 2% target for a considerable period as earlier cost shocks pass through and stronger domestic demand adds pressure. Financial stability provides another reason for caution. Household credit has again moved above KRW 2 quadrillion, while the Bank of Korea has warned that renewed housing-price increases in the Seoul metropolitan area and growing leveraged asset investment could rebuild financial imbalances. The central bank’s June Financial Stability Report said Korea’s financial system remained broadly resilient but highlighted vulnerable borrowers, corporate credit risks and renewed asset-market leverage as areas requiring close monitoring.

Bank of Korea Governor Hyun Song Shin has therefore characterized the July-August moves as preventive rather than reactive tightening. After Thursday’s decision, he said the two increases had sent a strong signal and argued that early action could stabilize inflation expectations while reducing the need for more severe tightening later. At the same time, he also stressed that policymakers should now observe the effects of the back-to-back moves. The median of Monetary Policy Board members’ six-month rate projections is 3.25%, implying one additional increase, but not an automatic sequence of hikes. That last point is crucial. Raising rates to 3% can be justified. Continuing to raise them without carefully examining who is actually bearing the cost is a different question.

Korea’s Strong GDP Numbers Do Not Mean Every Business Is Strong

One of the most revealing observations came from the Bank of Korea itself. In discussing household debt in June, officials acknowledged that much of Korea’s nominal economic growth had been concentrated in sectors such as semiconductors and therefore could not necessarily be interpreted as an equivalent improvement in the incomes of indebted households across the economy.

The same logic applies to companies. A semiconductor exporter enjoying record earnings and a restaurant owner refinancing a business loan exist under the same policy rate, but they do not experience that rate in remotely the same way. Nor does a cash-rich listed company with access to bonds experience a 25-basis-point tightening the same way as an unlisted manufacturer whose only realistic financing option is a bank loan. The Bank of Korea’s June financial-stability assessment already showed this divergence. Corporate loan delinquency had risen above its long-run average, and the central bank specifically identified increasing bad loans among SMEs operating in weak industries as an issue requiring attention.

That is the hidden danger of looking only at aggregate growth. A country can report strong GDP growth and simultaneously experience severe financial stress among the firms that account for much of local employment, regional activity and domestic supply chains.

The Same Rate Hike Is Much More Powerful for an SME Than a Conglomerate

Recent research by the Korea Capital Market Institute provides a structural explanation for why monetary tightening can produce such unequal effects. Large Korean companies finance roughly half of their financial liabilities through loans. For mid-sized and small companies, that figure exceeds 90%. By comparison, loans account for less than 40% of U.S. corporate financial liabilities, reflecting far greater use of bonds and other capital-market instruments.

That difference changes monetary transmission dramatically. When the base rate rises, a large company may choose among bank loans, bonds, commercial paper, retained cash, overseas funding or equity. Smaller companies often have no such menu. Their bank renewals become more expensive, collateral standards tighten, credit limits are reduced, and in periods of uncertainty lenders naturally concentrate on borrowers with the strongest balance sheets.

That process can become self-reinforcing. Higher rates increase debt-service costs. Higher debt-service costs weaken financial ratios. Weaker ratios cause banks to tighten lending standards. Reduced credit then forces firms to cut inventories, hiring, R&D and investment, which reduces future cash flow and can further weaken creditworthiness.

The problem is therefore not merely the price of credit. It is whether credit remains available at all.

A 3% Policy Rate Does Not Mean a 3% Business Loan

The distinction is particularly important when policymakers discuss whether a 3% base rate is historically “high.” For a company or self-employed borrower, the base rate is only the starting point. Bank funding costs, credit risk, collateral, maturity, guarantee fees and lending margins are added on top. Before Thursday’s latest increase, the average rate on newly originated Korean bank loans was 4.27% in July, while the average rate on outstanding loans was 4.37%. These are averages across borrowers and products; weaker businesses can face significantly higher effective financing costs or may simply fail to qualify for additional credit.

This is why several years of elevated borrowing costs matter even if the current base rate looks moderate compared with historical peaks. Companies have gradually refinanced older debt at higher rates, accumulated interest expenses and depleted cash reserves. The pandemic period itself began with exceptionally low rates. The persistent high-rate burden emerged later, primarily from 2022 onward. But four years of refinancing, wage pressure, energy costs, weaker domestic demand and tighter credit standards can create a cumulative impact that is more damaging than any single rate increase.

For a healthy company, 25 basis points may be manageable. For a marginal but fundamentally viable business attempting to refinance payroll and working capital, it can be the difference between continuing operations and entering distress.

The Self-Employed Sit at the Sharpest End of Monetary Tightening

South Korea’s large self-employed sector is particularly sensitive. Many small operators combine business debt with household borrowing, commercial property deposits, credit guarantees and short-term working-capital facilities. When rates rise, business and household balance sheets can therefore deteriorate simultaneously. The Bank of Korea has repeatedly identified the slow recovery of self-employed borrowers and vulnerable SMEs as a financial-stability concern. Its monetary-policy report earlier this year explicitly said that, despite improvement in the broader economy, the recovery among regional SMEs and self-employed businesses remained delayed enough to justify continued targeted financial support. This is not an argument for indefinitely preserving every indebted business.

Some enterprises are no longer economically viable and should undergo restructuring or orderly exit. Continuing to refinance every failing borrower would create zombie firms, weaken bank balance sheets and undermine productivity. But there is a fundamental difference between insolvency and illiquidity. A restaurant with permanently disappearing demand is one problem. A profitable manufacturer with export orders that cannot finance three months of working capital at a tolerable rate is another. Monetary and credit policy should be capable of distinguishing between them.

Startups Present a More Complicated Picture

It would also be inaccurate to describe Korea’s entire startup ecosystem as starved of capital. Official data released by the Ministry of SMEs and Startups show that venture investment reached a record KRW 8.87 trillion in the first half of 2026, up 54.3% from a year earlier. That is an exceptionally strong headline number.

But where that capital is going matters. ICT services attracted 21% of investment, electrical, machinery and equipment 17.3%, and bio and healthcare 17%. The ministry specifically noted that major transactions of KRW 100 billion or more in semiconductors, AI chips, robotics and related sectors played an important role in the increase. This is a classic example of why aggregate liquidity can coexist with funding scarcity. Capital is abundant for some companies and scarce for others. An AI semiconductor company able to attract a KRW 100 billion equity round does not face the same financing environment as a revenue-generating startup needing KRW 2 billion of bridge capital before its next institutional round.

Higher rates also increase venture investors’ required returns and raise the discount rate applied to future cash flows, making long-duration businesses — including many biotechnology and deep-tech companies — particularly sensitive to changes in financing conditions. Korea therefore does not necessarily have a universal startup funding crisis. It has a capital-allocation problem, in which strong headline investment can coexist with severe financing pressure for companies outside the most fashionable sectors or deal sizes.

The U.S. Is Not Actually in a Simple Rate-Cutting Cycle

There is also an important international misconception that should be avoided. The current global backdrop is not one in which every major central bank is rapidly cutting rates while Korea moves alone in the opposite direction. The Federal Reserve kept its policy range at 3.50% to 3.75% in July, but three FOMC members voted for an immediate 25-basis-point increase. Inflation remained above the Fed’s 2% objective, and U.S. interest-rate markets shifted materially away from expectations of cuts toward the possibility of renewed tightening.

The U.S. Treasury market illustrates the pressure. As of Aug. 25, the two-year Treasury yielded 4.17%, the 10-year 4.64% and the 30-year 5.17%. The Treasury Borrowing Advisory Committee said investors had shifted from pricing rate cuts toward assigning substantial probability to one or more increases. Long-term yields above 5% also reflect forces that central banks cannot fully control: fiscal borrowing requirements, inflation uncertainty, energy shocks and term premiums. The U.S. Treasury has even increased the scale of buyback operations in longer-dated securities to provide additional market liquidity support.

The lesson for Korea is therefore not that it should blindly follow an international easing cycle that currently does not exist. The lesson is more subtle. Monetary restraint and liquidity support are not opposites. Central banks can maintain a restrictive policy signal while addressing dysfunction or excessive credit contraction in particular parts of the financial system.

Korea Needs a Two-Track Policy

The most appropriate response after the August hike would therefore be neither a rapid reversal into rate cuts nor a mechanical continuation toward increasingly higher rates.

It should be a two-track monetary and credit policy. The first track should preserve macroeconomic discipline. The Bank of Korea can keep the base rate at 3% for now and allow the July and August increases to work through inflation expectations, household leverage, foreign-exchange markets and asset prices. Governor Shin has already emphasized the need to observe the effects of the consecutive increases before deciding how quickly to proceed. The second track should prevent tightening from turning into indiscriminate credit rationing for productive businesses. Korea already has much of the institutional infrastructure required to do this.

The Bank of Korea Already Has a Tool — It Should Use It More Strategically

The Bank of Korea’s Financial Intermediated Lending Support Facility provides central-bank funding to banks at below-policy rates when they extend qualifying loans to SMEs. The facility has historically operated with a KRW 30 trillion overall ceiling, and its lending rate stood at 1.25% as of July, below the policy rate even before this week’s additional increase. Existing programs include trade finance, new-growth and employment support, SME loan stabilization and regional SME support.

This mechanism provides a ready foundation for a more sophisticated targeted-liquidity framework. The objective should not be to flood the economy with cheap credit. That would weaken the purpose of the rate increase and potentially send more money into property and leveraged financial investments. Instead, low-cost central-bank funding should be increasingly tied to productive economic activity and verifiable liquidity need.

A viable SME with confirmed export orders, recurring sales or manufacturing contracts should receive different treatment from a speculative property borrower. A technology company with externally validated R&D assets and institutional investors should be evaluated differently from a business that has been structurally loss-making for years with no credible route to profitability. Credit policy should recognize those differences.

A Targeted Liquidity Window Could Protect Productive Firms

A new or expanded facility could operate through commercial banks rather than having the central bank select individual companies itself. Banks would originate and monitor the loans while receiving lower-cost Bank of Korea funding for borrowers that satisfy clearly defined eligibility criteria. The most important principle would be risk sharing. Banks should retain meaningful exposure to every loan so that they continue to perform normal credit assessment rather than simply transferring losses to taxpayers or the central bank. Korea Credit Guarantee Fund and Korea Technology Finance Corporation guarantees could be used selectively for companies where technological assets or future cash flows are difficult to capture through traditional collateral models.

Support could focus on working capital, refinancing of otherwise sound loans, export production, R&D, equipment investment and temporary bridge financing. It should not finance dividends, speculative property purchases, share buybacks or highly leveraged financial investment. The program should also have a clear expiration date. Temporary liquidity should create a bridge to sustainable private financing — not permanent dependence on subsidized debt.

Cash Flow Should Matter More Than Real Estate Collateral

One structural weakness of Korean SME financing deserves particular attention. Banks frequently find it easier to lend against real estate than against technology, intellectual property, purchase orders or recurring commercial revenue. This naturally disadvantages young companies, asset-light businesses and many innovative firms.

A targeted-liquidity strategy should therefore accelerate cash-flow-based lending. Tax filings, electronic invoices, card revenue, export documentation, recurring subscription revenue, procurement contracts and verified order books can increasingly be used to evaluate a company’s ability to repay. For technology companies, verified intellectual property, government R&D evaluations and institutional investment history can supplement conventional collateral assessment. This would help ensure that monetary tightening reduces excessive leverage without automatically starving companies whose primary assets are ideas, technology, people and future orders rather than buildings.

Support the Viable — Restructure the Non-Viable

Any targeted-credit policy will immediately encounter a legitimate criticism: moral hazard. If governments provide cheap financing whenever rates rise, why should businesses manage leverage prudently?

That objection is valid. For that reason, selective liquidity must be accompanied by selective restructuring. Companies receiving support should demonstrate ongoing commercial activity and credible repayment capacity. Banks should retain part of the credit risk. Eligibility should be periodically reviewed. Businesses that repeatedly require refinancing without operational improvement should move toward restructuring rather than receiving unlimited extensions.

For self-employed borrowers, this may mean separating temporary debt-service relief from genuine insolvency. A business suffering a short-term cash-flow shock may benefit from maturity extension or temporary interest relief. A permanently unviable business may need debt restructuring, orderly closure and assistance for the owner to re-enter employment or another industry. The objective should be to preserve productive capacity, not every existing corporate entity.

Korea Must Also Reduce SMEs’ Dependence on Banks

Emergency liquidity can address the immediate problem, but Korea’s deeper vulnerability is structural. When more than 90% of the financial liabilities of smaller and mid-sized companies are loan-based, every monetary tightening cycle will inevitably transmit disproportionately through SMEs. That will not change until Korea develops broader alternatives. More active SME bond securitization, P-CBO structures, receivables financing, supply-chain finance, venture debt and institutional private-credit markets could allow companies to diversify funding beyond bank loans. This is not merely a capital-market development objective. It is a monetary-policy resilience objective. An economy in which only the largest corporations can access multiple funding channels will always experience uneven monetary transmission.

Property Should Be Controlled With Property Tools

There is another reason targeted liquidity makes sense. Part of the Bank of Korea’s concern involves Seoul property prices and renewed household leverage. But Governor Shin himself acknowledged after Thursday’s meeting that using interest rates alone to control housing prices is unrealistic. That suggests policy instruments should be better matched to policy problems. If speculative mortgage leverage is excessive, loan-to-value limits, debt-service-ratio rules, risk weights, lending caps and borrower-specific macroprudential policies can address it directly. A higher nationwide interest rate, by contrast, also raises financing costs for an exporter in Daegu, a biotechnology startup in Seoul, a restaurant in Busan and a regional component supplier that has nothing to do with apartment speculation. Using a broad monetary instrument to address a concentrated asset-market problem inevitably creates collateral damage. Monetary policy still matters for housing, but it should not be asked to do the entire job.

The Next 25 Basis Points Could Matter More Than the Last 50

South Korea has now delivered two consecutive rate increases. The case for those moves is defensible. The case for automatically moving to 3.25% or beyond is less clear. Monetary policy operates with a lag. Businesses do not refinance every loan on the day the Bank of Korea changes its rate. Household debt costs, bank lending standards, investment decisions and hiring plans adjust over months. The cumulative effect of the July and August increases may therefore become substantially more visible toward the end of the year.

Before tightening again, policymakers should examine not only CPI, core inflation, property prices and the won, but also SME delinquencies, corporate non-performing loans, credit spreads, loan rejection rates, closures, employment and refinancing availability. An economy can absorb high interest rates until suddenly it cannot. Credit deterioration often looks gradual before becoming nonlinear.

Price Stability and Productive Credit Are Not Contradictory Goals

The debate over interest rates is too often framed as a binary choice. Raise rates and fight inflation. Or cut rates and support the economy. Modern financial systems allow a more precise response. South Korea can maintain a sufficiently restrictive policy rate while channeling targeted liquidity toward solvent, productive borrowers whose access to financing is being impaired by broad risk aversion. At the same time, it can use macroprudential measures more aggressively against property leverage and force genuinely non-viable businesses to restructure. That is not monetary inconsistency. It is policy differentiation.

The Federal Reserve, the Bank of Korea and other central banks have repeatedly demonstrated during financial crises that the stance of monetary policy and the provision of liquidity serve different purposes. A central bank can fight inflation while ensuring that its financial system continues to transmit credit efficiently. Korea increasingly needs that distinction now.

The Real Risk Is a Two-Speed Economy Becoming Permanent

The most dangerous consequence of prolonged high rates may not be a dramatic recession. It may be something quieter. Strong exporters, semiconductor companies and large corporations continue to grow. Capital concentrates in AI, chips and the country’s most attractive companies. Banks become increasingly comfortable lending to already-strong borrowers.

Meanwhile, smaller businesses pay higher financing costs, invest less, hire less and gradually lose competitiveness. Startups outside fashionable sectors shorten their ambitions to preserve cash. Self-employed borrowers use household assets to keep businesses alive. Regional companies defer equipment replacement and innovation. Eventually, the economy becomes stronger statistically while becoming narrower structurally. The Bank of Korea itself has already identified sectoral divergence, vulnerable borrowers and deteriorating SME credit quality as risks. That means the policy debate should not wait until those problems become a systemic crisis.

Korea Has an Opportunity to Tighten Smarter

Thursday’s rate increase should therefore be viewed as the beginning of the next policy discussion rather than its conclusion. The Bank of Korea has sent a clear message that it will defend price stability and financial credibility. ‘

Now Korea’s financial authorities need to send a second message: productive businesses will not be allowed to fail solely because temporary monetary tightening shuts them out of credit. That requires expanding selective liquidity rather than broad stimulus, strengthening guarantee-linked finance, widening capital-market access for SMEs, accelerating cash-flow-based lending and distinguishing viable companies from borrowers that require restructuring. Done correctly, such measures would not undermine monetary tightening. They could make it more sustainable. The purpose of higher interest rates is to reduce excessive demand, inflation and leverage. It should not be to eliminate healthy companies that happen to lack the financing advantages of Korea’s largest conglomerates. For policymakers, that distinction is becoming increasingly urgent. South Korea does not need to choose between price stability and its SMEs, startups and self-employed businesses. It needs a financial architecture sophisticated enough to protect both.

*The lead image at the top of this article illustrates South Korea’s 3.0% policy rate alongside the growing financing pressure on SMEs, startups and the self-employed, emphasizing the need to balance monetary stability with targeted liquidity for productive businesses. The lead image was generated using generative AI with ChatGPT.