Business Energy Outlook Ahead of the Autumn Budget 2025

For many UK businesses, energy costs remain a source of uncertainty. Even as wholesale prices stabilise, government policies and fiscal rules continue to shape the bills companies face, keeping costs unpredictable.

The pressure on public finances presents a significant challenge for the country as a whole, with particular regional impacts in England that may differ from the rest of the UK. With the Budget just weeks away on Wednesday 26th November 2025, this could be a critical moment. Understanding what has already changed in 2025 and what might be in play for 2026 is essential for businesses preparing their own budgets and negotiating energy contracts.

The policies that have already shaped 2025

The harsh financial backdrop

The Treasury is under heavy pressure: large budget shortfalls loom, pressuring increases in income tax and national insurance to support public finances across the country. Tax rises, potential changes in tax rates, adjustments to the energy profits levy, and the impact on income for working people are firmly on the table, along with cut-backs or restructured subsidies.

In the short term, fiscal measures may include higher rates on gas or energy, which could affect savings for businesses seeking to reduce costs. The government has also emphasised its commitment to addressing fuel poverty as part of its broader fiscal and social policy.

Autumn Budget 2025 energy measures: What to expect

Although full details will only be confirmed on the 26th of November, budget day remains the key moment for major policy announcements. We can expect the following:

1. Tax changes: Corporation tax, VAT or energy-levy adjustments remain plausible. Firms still dealing with high energy bills may face a double squeeze.
2. Efficiency and upgrade support: The government has confirmed full funding of the £13.2 billion, for example, via the Warm Homes Plan for home energy upgrades – though business-side subsidy support may not receive the same emphasis. For business customers, access to services and support is crucial to ensure they can benefit from available upgrades and energy efficiency measures.
3. Industrial energy strategy (2027 onwards): The forthcoming British Industrial Competitiveness Scheme is expected to offer levy exemptions and cheaper energy for energy-intensive industries. SMEs may not qualify directly but the policy focus is shifting that way, including incentivising low carbon transport to support the transition to low-emission vehicles and infrastructure.
4. Zonal pricing debate: Regional electricity pricing is under review. Businesses in Scotland or the North could benefit from cheaper supply, while firms in London and the South East might see higher costs depending on how zonal schemes evolve.

Reeves’ rare pre-Budget address: The Chancellor sets the tone

In a rare pre-Budget address on 4 November 2025, the Chancellor Rachel Reeves set the scene by warning of “hard choices” ahead. She refused to rule out rising income tax, VAT or National Insurance, saying that the public finances are weaker than anticipated and that “each of us must do our part”. Markets interpreted the speech as indicating tax rises are now a serious possibility in the Budget on 26 November.

For businesses this means there is elevated risk that energy-related taxes and levies will feature in the Budget’s cost calculus, reinforcing the importance of securing supply contracts and efficiency upgrades early.

Five actions businesses should do to prepare

Action 1: Review existing contracts before 26 November where possible, or lock in favourable deals now. Even small differences per kWh can mean thousands over the contract term.

Action 2: Press ahead with efficiency upgrades. The best hedge against future cost shocks is lowering consumption. Even if government funding is uncertain, efficiency always pays.

Action 3: If you use a broker or Third-Party Intermediary (TPI), take time before 26 November to review who you’re working with. Regulation is tightening, and some brokers may exit the market as new standards take effect. That could leave businesses without crucial support in managing their energy contracts and renewals. Verify that your broker is reputable, transparent about fees, and prepared for compliance changes. Doing a quick review now could save you from disruption later.

Action 4: For businesses with multiple sites or large demand, start modelling the impact of half-hourly settlement. Look at whether shifting some operations to off-peak may reduce costs under the new regime.

Action 5: Keep an eye on regional cost dynamics if you have sites in different regions (zonal pricing may reshape cost bases).

Final Takeaway

The Autumn Budget on 26 November won’t be a magic fix for business energy, but it will set the tone for how the next year unfolds. The combination of half-hourly billing, broker regulation and possible tax rises means energy management is shifting from a background admin task to a strategic one.

For SMEs, the picture is mixed. The new supplier-protections and movement to half-hourly data promise greater stability and transparency. But immediate relief on the 26th is very unlikely. Much of the policy support appears to be directed at large scale or energy-intensive industry rather than smaller businesses. So smaller firms may still need to navigate the turbulence themselves.

Utility Bidder can help firms build that strategy, not just sign a contract. With better data, sharper procurement, and a real plan for efficiency, businesses can take control of their energy position long before the Chancellor takes the podium.