For years, an astonishing number of investments worked for one simple reason: money was almost free.
An office building could rise in value without collecting another pound of rent. A private-equity buyer could pay a heroic price and allow inexpensive debt to do much of the work. A young company could lose money year after year and still describe itself as successful because another funding round was always available. Governments discovered that almost every difficult decision could be postponed by borrowing a little more.
It was enjoyable while it lasted. Unfortunately, it also confused a rising tide of liquidity with investment ability.
Cheap money did not merely inflate asset prices. It allowed weak business models, excessive leverage and poor capital allocation to survive without being properly tested. Now that money has recovered a price, those assumptions are being examined one refinancing at a time.
Some things will break. Others will begin working properly again.
The Great Financial Anaesthetic
The period following the Global Financial Crisis did more than lower interest rates. Central banks purchased government bonds through quantitative easing (QE), cash earned almost nothing and investors were pushed steadily further along the risk curve. Falling yields lifted the value of equities, property and private assets. Rising asset values improved collateral. Better collateral supported more borrowing, which lifted asset values again.
It became a remarkably agreeable circle—provided nobody asked what would happen when it turned in the opposite direction.
Low volatility encouraged leverage. Easy refinancing made maturity dates look administrative rather than consequential. Investments that appeared different were often variations on the same proposition: liquidity would remain abundant and the cost of capital would remain negligible.
Higher interest rates reverse that arithmetic. Future earnings are worth less today. Collateral values fall. Lenders demand stronger terms. Refinancing becomes a commercial decision rather than a formality.
The process is slow because debt does not all mature at once. Fixed-rate borrowing delays the pain, private valuations delay its recognition and amend-and-extend agreements delay default. Delay can be useful, but it should not be mistaken for repair.
The Refinancing Meeting Nobody Wanted
Imagine a perfectly respectable company that borrowed at three per cent. Its customers have not disappeared and its factories still operate. Then the debt matures and the new rate is seven or eight per cent. Nothing dramatic has happened to the business, but interest now consumes the cash previously available for investment, wages, research and dividends.
The Organisation for Economic Co-operation and Development (OECD) estimated that corporate debt across the Group of Twenty (G20) economies stood at approximately $90 trillion in the third quarter of 2025. A quarter is due to mature within three years, much of it issued during the low-rate years between 2018 and 2021.[1]
The first consequence is seldom bankruptcy. It is caution. The company postpones a new plant, carries less inventory, freezes recruitment and sells the division it once intended to expand. Monetary policy reaches the real economy through thousands of unremarkable meetings like this—well before defaults make the newspaper headlines.
Businesses with pricing power, sensible leverage and genuine demand can adjust. Those that require repeated injections of capital merely to meet existing obligations discover something uncomfortable: their capital structure was not supporting the business. It was the business.
The Building Has Not Moved. Its Value Has.
Property makes the repricing of money unusually easy to see. An office building producing £5 million of annual rent is worth £100 million at a five per cent capitalisation rate. At seven per cent, the same rent supports a value of about £71 million. The tenants are still there. The bricks have not moved. The required return has changed—and nearly £29 million has disappeared.
If the building was purchased with debt, the damage to the owner's equity is much greater. Refinancing may require new capital, a sale at an inconvenient price or a lender willing to pretend that patience will restore the old valuation.
Secondary offices face a second problem. Hybrid working has reduced demand while energy and refurbishment standards raise the cost of remaining competitive. The European Central Bank (ECB) reported that euro-area commercial-property transaction volumes remained around 60 per cent below their 2019 peak at the end of 2025.[2] When buyers and sellers cannot agree on the price, the first thing to disappear is usually the transaction.
Residential property adjusts more slowly. Fixed-rate mortgages protect existing owners, limited supply supports prices and activity collapses before valuations do. The burden falls disproportionately on the prospective buyer, who discovers that a cheaper house can still be less affordable when the mortgage costs twice as much.
Private Equity: When the Spreadsheet Stops Helping
Private equity is capable of improving businesses. Good owners sharpen strategy, invest intelligently and make management accountable. Cheap debt nevertheless made it much easier to confuse financial engineering with operational achievement.
A leveraged acquisition works beautifully when borrowing is inexpensive, profits rise and the business can be sold to the next buyer at an equally generous valuation. Higher rates challenge every part of that sentence.
Debt service rises. Economic growth becomes less dependable. The next buyer cannot finance the old price. Sellers resist accepting reality, buyers refuse to inherit yesterday's assumptions and exits slow. Assets are transferred into continuation vehicles, holding periods are extended and loan terms are amended. Each can be sensible. Each can also postpone the moment when an independent transaction reveals what the asset is actually worth.
In its private-markets stress exercise, the Bank of England (BoE) found median leverage among the British companies examined of approximately six times reported earnings before interest, tax, depreciation and amortisation (EBITDA). Half of the private-credit loans in the exercise mature by 2030.[3] They will not all fail. They will, however, have to meet a cost of capital very different from the one under which they were assembled.
Private Credit and the Comfort of Infrequent Prices
Private credit filled a genuine need as banks withdrew from riskier lending and investors searched for income. Its weakness is not necessarily the underlying loan. It is visibility.
A public bond is repriced every day, sometimes rudely. A private loan is valued periodically using models, comparable transactions and managerial judgement. It therefore appears less volatile. The economics are not less volatile merely because nobody has supplied a fresh price before lunch.
The International Monetary Fund (IMF) has drawn attention to opacity, valuation practices, liquidity mismatches and rising defaults in private credit.[4] Payment-in-kind interest, covenant amendments and maturity extensions can give a sound borrower time. They can also turn today's unpaid interest into tomorrow's larger problem.
The decisive moment arrives when an investor wants money back, a fund must sell an asset or a borrower has to refinance. Liquidity always looks least necessary when it is most plentiful—and most valuable when everybody wants it simultaneously.
Risk Has Not Left the Banks. It Has Changed Address.
Non-bank finance has not removed risk from banks and insurers. Banks finance private-credit funds, provide subscription facilities, arrange securitisations and lend against pools of private assets. Insurers buy illiquid investments to match long-dated liabilities and earn additional yield.
These connections look manageable in normal markets. Under stress, opacity makes it difficult to establish where the leverage sits and who ultimately owns the loss. A bank may not hold the weakest company's loan, but it may finance the vehicle that does.
Higher rates also reduce the market value of fixed-rate securities. Those losses can remain unrealised if the assets are held to maturity. They become extremely real when depositors or investors demand cash. The American regional-bank failures of 2023 demonstrated how quickly a duration mismatch can become a liquidity crisis.
The Federal Reserve reported in May 2026 that fair-value losses on banks' fixed-rate assets were falling but remained sizeable and sensitive to long-term rates. It also found hedge-fund leverage close to record levels and life-insurer leverage near the upper end of its historical range.[5] The risk has moved around the system; it has not evaporated.
Even Government Bonds Can Become Crowded Trades
Government bonds sit at the centre of the financial system. They are treated as safe assets and used as collateral for enormous quantities of borrowing. Yet governments are issuing record amounts just as central banks reduce their holdings. The OECD expects governments and companies to borrow approximately $29 trillion from bond markets in 2026.[6] Price-sensitive investors must absorb more of it.
Hedge funds now supply valuable liquidity to government-bond markets, often through highly leveraged relative-value trades. A very small price movement can produce a large capital loss when most of the position has been financed with borrowed money. Margin calls force sales; sales move prices; falling prices create more margin calls.
The underlying bond may remain perfectly sound. The owner simply cannot afford to wait for the price to recover.
Central banks will intervene when market functioning is threatened. Sometimes they must. The awkward question is whether repeated rescues stabilise markets or persuade investors that leverage will always be protected. The distinction between rescuing a market and rescuing its price is wonderfully clear only after the event.
AI: Transformative Technology, Familiar Financing Risk
Artificial intelligence (AI) may ultimately raise productivity, create industries and expand the tax base. It may also become the largest capital-investment cycle of our generation. Both statements can be true.
The build-out requires chips, memory, data centres, cooling systems, networks and a great deal of electricity. The money is being spent before anybody knows precisely where the final profits will settle. The OECD estimates that nine major AI companies could issue about $1.2 trillion of bonds between 2026 and 2030 if the bond market finances half their projected capital requirements. Private credit may supply a further $800 billion over four years.[6][7]
This changes the financial character of technology. Companies once admired for capital-light economics are becoming owners—or committed users—of vast quantities of physical infrastructure. The assets are expensive, technology evolves quickly and power commitments are made years before demand is certain.
The risk is not that AI proves unimportant. Railways and the internet changed the world. Investors still found inventive ways to lose money financing them. A transformative technology does not repeal the need to pay a sensible price.
Concentration makes the issue larger. The IMF reported that equity-market concentration in the biggest companies exceeded the 95th percentile of its historical distribution in early 2026.[4] Disappointment among a handful of AI-related businesses would therefore travel far beyond specialist technology portfolios.
Governments Discover That Interest Is Also Spending
Cheap money allowed governments to meet almost every emergency with additional borrowing. Pandemic support, energy subsidies, defence, industrial policy and bank rescues were financed while the interest bill appeared manageable.
That room has narrowed. Interest expenditure now competes with hospitals, pensions, defence and infrastructure. Governments must refinance old debt while asking markets to finance new ambitions. The fiscal shock absorber available for the next recession is smaller.
Political pressure on central banks consequently increases. Independence may remain intact in law while tolerance for restrictive policy weakens in practice. Governments will be tempted to direct pension savings towards public debt, adjust regulations in favour of sovereign bonds or encourage central banks to control longer-term yields.
These measures will arrive under reassuring names. Taken together, they amount to financial repression: savers are encouraged—or required—to finance the state on terms they might not freely choose.
The system need not break through an explicit default. It can deteriorate through the gradual replacement of market prices with politically convenient ones.
The Part We Should Welcome
So far, this sounds grim. It should not.
The end of cheap money also restores several useful features of capitalism. Savers receive interest. Banks can earn a return from sensible lending. A company must demonstrate that its investment will exceed the cost of the capital employed. Management teams with strong balance sheets can purchase assets from competitors who relied on refinancing. Patient investors are paid to wait.
Most importantly, price matters again.
Strong businesses do not require zero interest rates. Companies with valuable products, recurring cash flow, modest leverage and pricing power can continue to invest. Property bought at an adequate yield still provides income. Private credit written with conservative leverage and effective covenants can perform exactly as intended.
Capital becomes more selective. Cash flow regains status. Balance sheets matter. The distinction between a fashionable story and a productive asset becomes easier to see.
This is uncomfortable for those who benefited most from the previous system. It is considerably more encouraging for disciplined investors who spent the cheap-money years being told that valuation no longer mattered.
Who Wins When Capital Has a Price?
The winners are unlikely to be those with the most elaborate explanation of adjusted earnings. They will be businesses and investors able to fund themselves when others cannot.
Cash-rich companies can acquire competitors, employ talented people and invest through the downturn. Savers and pension funds can earn income without accepting absurd levels of risk. Lenders who retained proper standards can extend capital on better terms. Investors with liquidity can purchase sound assets from forced sellers.
There will also be a generational benefit if asset prices reconnect with the incomes that support them. Younger buyers have been damaged by a system that offered cheap borrowing only after pushing the price of the desired asset beyond reach.
None of this makes the transition painless. Existing owners dislike lower prices, governments dislike recognising losses and financial institutions prefer time. Political efforts to prevent every failure may therefore preserve the very misallocation that a higher cost of capital is beginning to correct.
What Happens Next?
There will probably be no single dramatic moment when the cheap-money era is declared over. The pressure will emerge as loans mature, hedges expire, property is revalued, private funds seek exits and governments approach the bond market again.
The visible incidents will appear unrelated: a property fund restricts withdrawals, a private borrower extends a loan, a leveraged company cancels a factory, a bank records a loss or a government alters pension regulation. The connecting thread will be the same. The price of money has changed.
Policymakers will continue distinguishing liquidity problems from solvency problems. In real time, they will often provide liquidity because admitting insolvency is politically harder. Some intervention will be necessary. Some will preserve investments that ought to fail.
For investors, the important question is not simply whether the next interest-rate move is up or down. It is which balance sheets, valuations and business models still depend on the assumption that money will become almost free again.
Cheap money concealed fragility by allowing nearly everything to be refinanced. More expensive money will reveal what was productive, what was merely leveraged and what never worked at all.
That will produce casualties. It will also return an advantage to investors who understand cash flow, balance sheets and the price of capital. They have waited a long time.
Sources
- Organisation for Economic Co-operation and Development (OECD), Economic Outlook, Volume 2026 Issue 1, 'Corporate debt strains may amplify risk repricing in financial markets and constrain investment and growth'. OECD
- European Central Bank (ECB), Financial Stability Review, May 2026. ECB
- Bank of England (BoE), Financial Stability Report, July 2026. Bank of England
- International Monetary Fund (IMF), Global Financial Stability Report, April 2026. IMF
- Board of Governors of the Federal Reserve System (Federal Reserve), Financial Stability Report, May 2026. Federal Reserve
- Organisation for Economic Co-operation and Development (OECD), Global Debt Report 2026. OECD
- Organisation for Economic Co-operation and Development (OECD), Global Debt Report 2026, 'Corporate debt market outlook in a transforming world'. OECD