Household energy bills in Great Britain could rise to almost £2,000 a year, adding significant pressure to UK finances already strained by a tightening mortgage market. Many Britons are reporting increased difficulty securing home loans, a struggle that has intensified since the recent escalation of the Iran war.
The sentiment captured by The Guardian's headline, 'It feels unfair', reflects a growing frustration among those trying to get onto or move up the property ladder in 2026. While specific changes to mortgage rates or lending criteria directly attributed to the conflict aren't detailed in official data yet, the wider economic uncertainty often leads lenders to become more cautious. This caution can translate into stricter affordability checks, higher deposit requirements, or a reduction in available mortgage products.
What changed and by how much
The most concrete change highlighted is the potential surge in household energy bills, which could reach nearly £2,000 annually. This rise directly impacts affordability calculations for mortgages, as lenders factor in household outgoings. For example, if your energy costs are projected to increase by £50 a month, this reduces your disposable income, which a lender will consider when assessing how much you can borrow.
Scenario: First-time buyer saving for a deposit
Imagine you're a first-time buyer in 2026, aiming for a £250,000 property. You've diligently saved a £25,000 deposit. With lenders becoming more cautious and energy costs potentially adding hundreds to your monthly outgoings, the amount you can borrow might be reduced. A lender who previously offered you a mortgage based on, say, £150/month energy costs will now factor in closer to £166/month (£2,000/12), potentially reducing your maximum loan by thousands. This means your £25,000 deposit might no longer be enough to bridge the gap, or you might need to save for longer.
For first-time buyers, a Lifetime ISA (LISA) is a powerful tool. You can contribute up to £4,000 each year and the government adds a 25% bonus, meaning you get £1,000 free if you max it out. This tax-free growth and bonus can significantly boost your deposit. For other savings, a Cash ISA allows you to save tax-free, and your Personal Savings Allowance means most people won't pay tax on interest earned anyway (e.g., £1,000 for basic rate taxpayers). Always check if a savings rate is variable or includes a temporary bonus that may expire.
Scenario: Homeowner remortgaging
If you're a homeowner coming off a fixed-rate deal, say on a £200,000 mortgage, the landscape has shifted. Even if your income hasn't changed, the increased cost of living, particularly energy bills, means your disposable income is lower. Lenders will reassess your affordability based on these higher outgoings. This could mean you qualify for fewer products, or face higher interest rates than you might have expected a few months ago, potentially increasing your monthly repayments by tens or even hundreds of pounds.
What this means for you
The combined effect of potential energy bill hikes and a more cautious mortgage market means securing or remortgaging a home is becoming more challenging and potentially more expensive for many UK households.
Step-by-step what to do right now
- Review your budget: Understand exactly where your money goes, especially with rising energy costs. Use online calculators to estimate potential bill increases.
- Check your credit score: Ensure it's in the best possible shape. Correct any errors and reduce outstanding debts where possible.
- Speak to a mortgage broker: They have access to a wide range of products and can advise on what you might be eligible for in the current climate. They can also help navigate stricter lending criteria.
- Boost your savings: If you're a first-time buyer, consider maximising your LISA contributions. For everyone, building an emergency fund can provide a crucial buffer against unexpected costs.
- Explore energy efficiency: Look into ways to reduce your energy consumption, which could help offset rising costs and improve your affordability in a lender's eyes.
But the wider economic picture
The Guardian also highlights that the current housing crisis is not new, having been fuelled by policies like 'Right to Buy' over the past 40 years. This suggests that while global events like the Iran war can exacerbate immediate challenges, underlying structural issues in the UK housing market contribute to the long-term struggle for many Britons. Lenders are also navigating broader economic factors beyond the immediate conflict, which can influence their lending decisions.
When effective
The impact of global events like the Iran war on energy prices and lender confidence can be felt almost immediately, with market reactions and policy changes occurring rapidly. The potential energy bill rises are being discussed now, with changes likely to be implemented in the coming months of 2026. Mortgage market shifts are already evident in the reported struggles of Britons.
Where to get help
- Mortgage brokers: For tailored advice on mortgage products and affordability.
- Citizens Advice: For guidance on managing debt and understanding your rights.
- Energy suppliers: For information on tariffs and energy-saving tips.
- MoneyHelper (formerly Money Advice Service): For free, impartial financial guidance.
Sources
- The Guardian — ‘It feels unfair’: the Britons struggling to get a mortgage since Iran war began
- The Guardian — Household energy bills in Great Britain ‘could rise to almost £2,000 a year’ amid Iran war shock
- The Guardian — From Thatcher to Johnson: how right to buy has fuelled a 40-year housing crisis
This is not financial advice. Seek independent mortgage guidance. Savings rates shown may be variable and include introductory bonuses. Interest may be taxable above your Personal Savings Allowance.