Why did public spending and government borrowing become concerns during Gordon Brown’s chancellorship?

During Gordon Brown’s tenure as Chancellor of the Exchequer, the United Kingdom experienced a period of steady economic growth. However, concerns regarding public spending and government borrowing emerged as these figures increased over time.1

While Brown initially maintained strict spending policies inherited from the previous Conservative government, he later implemented plans that significantly increased funding for health, education, and overseas aid. These fiscal choices, combined with the broader economic environment, eventually led to heightened scrutiny of the government's financial management. Later, during his time as prime minister, these concerns were exacerbated by the 2008–09 worldwide financial crisis and recession, which necessitated efforts to stimulate the economy and resulted in an ever-increasing budget deficit.12