The latest figures from the energy regulator, Ofgem, provide a sobering backdrop to the TUC’s demands. According to the regulator’s most recent quarterly report, more than two million gas and electricity accounts are now in arrears without any formal repayment plan in place. This specific category of debt is particularly concerning to policymakers and advocacy groups, as it indicates that a substantial portion of the population is not merely struggling to keep up with bills but has reached a point of financial paralysis where they cannot even commit to a structured schedule to clear their debts.
The breakdown of the data for the second quarter of 2026 shows that 1.19 million electricity accounts and approximately 955,000 gas accounts have fallen into arrears. These figures represent 4% of all electricity customers and 3.9% of gas customers in the country. Perhaps most alarming is the rate of acceleration; both totals have surged by 5% in just a three-month period, suggesting that the economic pressures on households are intensifying rather than stabilizing. This upward trend has pushed the total domestic energy debt and arrears to a record-breaking £5.02 billion, marking a 13% increase over the past year.
In response to this mounting crisis, the TUC is urging government ministers to utilize the platform of the party conference to announce a more aggressive strategy for tackling the cost of living. Central to their proposal is the introduction of a permanent social tariff, which would provide discounted energy rates to lower and middle-income households. Unlike temporary support measures or one-off rebates, a social tariff would be embedded into the energy market structure, ensuring that those most vulnerable to price fluctuations have a guaranteed safety net.
The TUC’s proposed model for the social tariff is designed to be both impactful and scalable. According to the union body’s estimates, the scheme could reduce annual energy bills by as much as £517 for the lowest-income households during periods of acute price pressure. The proposal also includes provisions for smaller, sliding-scale discounts that would extend further up the income bracket, ensuring that "squeezed middle" families, who often fall just outside the eligibility criteria for traditional welfare support, also receive much-needed relief.
To fund this ambitious social program, the TUC has pointed toward the record profits currently being enjoyed by the banking industry. The union body argues that the government should increase the bank corporation tax surcharge as a means of redistributing wealth from highly profitable financial institutions to struggling energy consumers. At present, the bank surcharge is set at a relatively modest 3% on qualifying profits exceeding £100 million. The TUC contends that this rate is insufficient given the scale of the national emergency.
The financial projections provided by the TUC suggest that even a modest adjustment to the surcharge could yield significant revenue for the Treasury. Restoring the surcharge to its previous level of 8% could raise approximately £9 billion. However, the unions are advocating for a more substantial intervention. They estimate that increasing the surcharge to 16% could generate around £24 billion over a four-year period. In a more radical scenario, the TUC suggests that a 35% surcharge could raise as much as £60 billion, providing a massive capital injection that could not only fund the social tariff but also potentially support wider energy efficiency and infrastructure projects.
Paul Nowak, the General Secretary of the TUC, has been vocal in his criticism of the current situation, describing the impact of energy costs as "crushing" for households across the country. He noted that the reality for many families is a choice between falling into deep debt or living without essential utilities. In his view, the disparity between the financial hardship of ordinary citizens and the "enormous profits" of the banking sector is a political choice that the Labour government must now address. Nowak’s message to the government is clear: the social tariff should be a cornerstone of Labour’s economic policy, and the banking sector is the most equitable source of funding for such a measure.
The timing of this demand is politically significant. As Labour holds its conference, the party is under intense scrutiny from its traditional trade union allies. While the government has introduced various measures to mitigate energy costs, the unions argue that these do not go far enough to provide long-term security. There is a growing sense of urgency as the country moves toward the winter months, a period when energy consumption typically spikes and the financial burden on low-income households becomes most acute.
The TUC’s argument is rooted in the belief that the current market mechanisms are failing to protect the public. The fact that energy debt has surpassed the £5 billion mark is seen as a systemic failure rather than a temporary fluctuation. By proposing a social tariff, the unions are calling for a fundamental shift in how essential services are priced and subsidized. They argue that energy should be treated as a basic right, and its cost should not be allowed to drive millions of people into poverty.
The banking sector, however, is likely to resist any significant increase in the corporation tax surcharge. Industry representatives have previously argued that higher taxes on banks could undermine the competitiveness of the UK’s financial services sector and lead to reduced investment. Yet, the TUC maintains that the current profit margins in the banking industry are a result of broader economic conditions, including higher interest rates, and that it is only fair for these windfall gains to be used to support the wider public during a cost-of-living crisis.
The Ofgem data also highlights a secondary issue: the lack of repayment plans for those in arrears. When customers fall behind on their bills without a plan, it often leads to more aggressive debt collection practices by energy suppliers, including the potential for the forced installation of prepayment meters or, in extreme cases, disconnection. While regulations have been tightened to protect vulnerable customers, the sheer volume of accounts in arrears—2 million—poses a logistical and social challenge that the TUC believes can only be solved through direct government intervention in pricing.
As the debate unfolds at the conference, the Labour leadership faces a delicate balancing act. On one hand, the government is committed to fiscal responsibility and maintaining a pro-business environment. On the other, it faces a mounting humanitarian crisis among its core constituency. The TUC’s proposal for a social tariff funded by a bank tax presents a clear, albeit controversial, path forward that aligns with Labour’s historical values of redistribution and social protection.
The TUC argues that the pressure on the government will only increase as the weather turns colder. They suggest that combining existing energy-bill measures with more direct, structural support is the only way to prevent a total collapse in household finances. The "winter pressure" is not just a meteorological reality but a political one, as the government’s handling of the energy crisis will likely be a defining feature of its early years in office.
The call for a social tariff is part of a broader conversation about the role of the state in protecting citizens from the volatility of global commodity markets. By linking energy affordability to bank profits, the TUC is framing the issue as one of social justice. They argue that while the costs of energy are a burden shared by the many, the profits generated by the financial systems that manage the economy are concentrated among the few.
In the coming days, the government’s response to the TUC’s proposal will be closely watched by economists, industry leaders, and, most importantly, the millions of households currently struggling with energy debt. With the £5.02 billion debt mountain continuing to grow, the demand for a radical solution like the social tariff is becoming increasingly difficult for the government to ignore. The TUC’s message is that the time for incremental changes has passed; the scale of the arrears crisis requires a bold, permanent intervention that fundamentally changes the relationship between energy prices, corporate profits, and household stability.
