A recent survey indicates that the majority of Britons believe high earners already pay a fair share of taxes, challenging Labour’s proposed tax increases on the wealthy. Research conducted by the Adam Smith Institute found that nearly 70 percent of respondents feel the top 1 percent of income earners contribute an appropriate level of tax. Additionally, about two-thirds acknowledged that taxing the wealthy more aggressively could prompt them to leave the country, potentially increasing tax burdens on working individuals.

According to the TaxPayers’ Alliance, the top 1 percent in the UK earn 13.3 percent of total income but account for 28.2 percent of all tax revenues. Meanwhile, data from the Office for National Statistics (ONS) reveals that wealthier households have experienced higher inflation in prices compared to poorer households for the first time since March last year.

The number of millionaires in the UK declined by seven percent last year to 442,000, a decrease occurring under the current Labour government’s fiscal policies. Prime Minister Andy Burnham, however, has not ruled out further tax hikes on the wealthiest, including potential increases to capital gains tax, which applies to earnings from the sale of assets such as second homes and shares.

Burnham's position has drawn criticism both within and outside his party. Economist Lord O’Neill of Gatley, an ally of the prime minister, warned that raising taxes in the upcoming October 28 Budget could signal a lack of genuine commitment to economic growth. O’Neill cautioned that higher capital gains taxes might drive entrepreneurs and investors to emigrate, stalling economic expansion and reducing government revenues.

Similarly, Sir Mel Stride, recently removed as Shadow Chancellor in Kemi Badenoch’s reshuffle, argued that public tolerance for Labour’s tax policies is fading. He emphasized that economic prosperity depends on supporting individuals who build wealth rather than imposing additional levies on them, given that they already bear the majority of the tax burden.

Shimeon Lee, a policy analyst at the TaxPayers’ Alliance, echoed these concerns, stating that squeezing high earners further risks economic damage by incentivizing their departure, ultimately leaving ordinary workers to shoulder a heavier tax load.

On the other hand, last autumn’s Budget, introduced by former Chancellor Rachel Reeves, saw the implementation of measures raising taxes on higher earners, with the government maintaining that those "with the broadest shoulders" should contribute fairly. Burnham has also pledged to offer relief to households struggling with the ongoing cost-of-living crisis.

However, inflation data through June 2026 shows that higher-income households are now facing slightly higher annual inflation—2.8 percent compared to 2.7 percent for low-income households—indicating that the rising cost of living is affecting wealthier Britons as well.

The ONS only updates household asset data biennially, leaving uncertainties around the exact number of millionaires affected by any potential wealth tax plans. As the government prepares its Budget, debate continues over how best to balance economic growth with demands for increased tax revenues amid ongoing financial pressures.