There is a method of reducing the real burden of sovereign debt that requires no parliamentary vote, no creditor negotiation, no IMF programme, and no public announcement of the pain it will cause. It operates silently, continuously, and with perfect distributional precision: it takes from those who hold cash and gives to those who hold debt. It is called inflation, and it has been one of the primary mechanisms through which governments have reduced the real value of their sovereign debt throughout modern history.

The mechanism is straightforward. If a government has borrowed one trillion dollars at a fixed nominal interest rate and inflation runs at 8% per year, the real value of that debt falls by approximately 8% annually. After five years of 8% inflation, the real value of the original principal has fallen by approximately 34%. The government repays, in nominal terms, exactly what it borrowed. In real terms, it repays substantially less. The creditor receives the nominal payment in full and experiences a real loss. The wage earner whose salary does not keep pace with inflation experiences the same real loss in purchasing power. The saver whose bank deposit earns below the rate of inflation watches the real value of their savings erode year by year. None of these people voted for the outcome. None of them were consulted. The tax was levied invisibly, at the moment of each price rise, on everyone who holds money rather than assets.

The historical record is consistent. Carmen Reinhart's research on financial repression documents how governments across the 20th century, particularly in the post-war period from 1945 to 1980, used a combination of controlled interest rates and above-target inflation to reduce the real burden of debt accumulated during the Second World War. The strategy was deliberate. It was also largely invisible to the public, who experienced it as the gradual erosion of savings rather than as a policy choice. The real value of UK government debt fell from approximately 250% of GDP in 1946 to approximately 50% of GDP by the late 1970s. Not through default. Not through explicit restructuring. Through the sustained operation of the invisible tax across three decades. (Source: Reinhart, financial repression research; IMF historical analysis)

The distributional impact of inflation is not neutral. It operates with systematic precision on the fault lines of wealth and income, transferring real value from those who hold monetary assets to those who hold real assets, and from wage earners to asset owners.

Wage earners bear the cost when nominal wages do not keep pace with price rises. In 2022, as inflation in the UK reached 11.1%, average nominal wage growth was running at approximately 6%. The gap, approximately 5 percentage points, represented a real wage cut of that magnitude for workers across the economy. The workers who could not negotiate above-inflation wage increases, who were on fixed contracts, on social benefits whose uprating was below inflation, or in sectors with weak collective bargaining, bore the full real cost of the inflation episode. (Source: ONS UK CPI data; OECD wage data 2022-23)

Savers bear the cost when deposit interest rates are held below the inflation rate. This condition, known as financial repression, was the norm during the post-war debt reduction period and recurred in the 2010s when central banks held rates near zero while inflation ran above zero. The real return on cash savings was negative for extended periods, eroding the purchasing power of savings held by households who had accumulated them for retirement or precautionary purposes. The households that held their wealth in real estate or equities rather than cash deposits experienced a different outcome: asset prices tend to rise with or ahead of inflation, protecting the real value of wealth held in those forms.

The distributional consequence is stark. Inflation transfers real wealth from cash holders to asset holders. Cash holdings are disproportionately concentrated among lower-income households, who hold a larger share of their wealth in bank deposits and a smaller share in property and equities than higher-income households. Asset holdings are disproportionately concentrated among higher-income and higher-wealth households. Inflation, as a mechanism of wealth redistribution, operates regressively: it takes more, in proportional terms, from those with less.

The inflation episodes documented in this article's data box illustrate a crucial asymmetry between developed and developing economy experiences. The United States and the United Kingdom experienced historically elevated inflation in 2022 -- 9.1% and 11.1% respectively -- but their institutional capacity to respond was intact: independent central banks, credible inflation targeting frameworks, and deep capital markets that could absorb the rate rises required to bring inflation down without triggering sovereign debt crises.

Ghana at 54%, Turkey at 85%, Argentina at 211%, and Zimbabwe at its catastrophic peak experienced the same inflationary force operating without those institutional buffers. In each case, the domestic currency lost purchasing power rapidly. In each case, because Global South debt is predominantly denominated in foreign currency, the inflation that eroded the domestic currency's value simultaneously increased the real burden of foreign currency debt. The invisible tax mechanism that reduces the real burden of domestic-currency debt for developed economies operates in reverse for developing economies with foreign-currency debt: domestic inflation weakens the exchange rate, making the dollar debt more expensive to service in local currency terms, at the precise moment when the domestic population is already experiencing the purchasing power destruction of high inflation.