Bills, energy & council tax
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In short: Household bills are the silent budget killer.
Household bills are the silent budget killer. Most people overpay on energy, broadband and insurance because switching feels harder than it is. The mechanics below are the levers — pulling two or three usually saves £400 to £1,200 a year.
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- Kaiser Khan
Energy: how the price cap actually works
Ofgem sets a quarterly price cap on the unit rates and standing charges that suppliers can charge on default tariffs. The cap caps the rate per kWh and the daily standing charge — not the total bill, which depends on how much you use.
Being on a default (variable) tariff means you pay at the cap. Fixed tariffs are sometimes cheaper, sometimes more expensive than the cap — only switch to a fix if it's clearly below the current cap and you're comfortable being locked in.
Cut energy use first
Saving energy is more reliable than chasing tariffs. The biggest wins for most homes:
- Heating settings
Each 1°C reduction on the thermostat cuts heating bills by ~10%. 18–21°C is the recommended range. Set hot water to 60°C — hotter wastes energy without making any practical difference.
- Standby and old appliances
An old fridge-freezer or tumble dryer can cost £100–£200/year more than a modern A-rated one. Standby on TVs, consoles and chargers adds up to ~£50/year per household.
- Insulation grants
ECO4 and the Great British Insulation Scheme offer free or subsidised loft and cavity-wall insulation to qualifying low-income households and homes with low EPC ratings.
Council tax: bands and reductions
Council tax is set by your local authority based on your property's band (A to H in England and Scotland, A to I in Wales). Bands were set in 1991 (England, Scotland) or 2003 (Wales) and many homes are in the wrong band.
Check your band against neighbouring identical properties on the VOA website. If they're lower, you can challenge yours for free — successful challenges refund you back to when you moved in.
Discounts and exemptions
These reductions are widely missed:
- Single occupant discount
25% off if you live alone, or if everyone else in the home is 'disregarded' (e.g. full-time students, severely mentally impaired, under 18).
- Council Tax Reduction (CTR)
Means-tested scheme that can cut bills by up to 100% for low-income households. Each council runs its own — apply directly to yours.
- Severe Mental Impairment (SMI) discount
People with conditions like Alzheimer's or severe learning difficulties are disregarded entirely. A two-person home with one SMI resident drops to a 25% discount. Backdatable for years.
Broadband and mobile
Broadband providers raise prices mid-contract (CPI + 3.9% is common). Out of contract, you'll be on the full standard rate — often £15–£25/month above the best new-customer deals.
Set a calendar reminder for your contract end date. When it arrives: call to haggle, threaten to leave, or use Ofcom's One Touch Switch to move providers in a single call. Social tariffs (e.g. BT Home Essentials, Virgin Essential, Sky Basics) cost ~£15–£20/month for households on Universal Credit or Pension Credit.
Water
Unless you have a meter, you pay a flat rate based on your home's rateable value. Generally, if there are fewer people than bedrooms in your home, a meter saves money. You have the right to request a free meter installation, and a 12–24 month trial period to revert if it works out more expensive.
Water companies also run social tariffs (e.g. WaterSure for medically high users, WaterCare or LIFT for low-income households) that cap bills below the regional average. Each company runs its own scheme — apply directly to yours.
TV licence, streaming and the right to refuse
You only need a TV Licence (£174.50/year, 2025/26) if you watch live TV on any channel, or use BBC iPlayer — including catch-up. If you only stream on-demand from Netflix, Disney+, Amazon, YouTube and similar, you don't need one. TV Licensing's letters are templated and do not require a reply, although you can update your status to 'No Licence Needed' to stop them.
Over-75s on Pension Credit qualify for a free licence. Severely sight-impaired (blind) viewers get a 50% reduction.
Mobile: SIM-only vs handset contracts
A handset bundled into a 24-month airtime contract is a credit agreement — you're paying for the phone and the service together, often with substantial interest baked in. Buying the phone outright (or on a 0% credit agreement) and pairing it with a SIM-only deal typically saves £200–£500 over two years for the same handset.
From 2025, networks must split airtime and handset costs more clearly on bills, and SIM-only social tariffs (Vodafone Voxi for Now, Smarty Social, EE basics) cost £8–£15/month for households on Universal Credit or Pension Credit.
Refunds, complaints and Ombudsman routes
For energy, the Energy Ombudsman handles unresolved complaints after 8 weeks (or sooner if the supplier issues a deadlock letter). It's free for consumers and decisions are binding on the supplier. For communications (broadband, mobile, landline, pay-TV), the Communications Ombudsman or CISAS plays the same role.
If your supplier holds you in over £100 of credit on direct debit, you can request a refund at any time. They must explain why if they refuse and you can complain. Annual statements should be checked — most overpayments are settled simply by asking.
Go deeper on bills, energy
The energy price cap and Warm Home Discount — what they actually mean
Ofgem's default tariff cap (the 'energy price cap') is reset every 3 months and limits what suppliers can charge per unit and per day on standard variable tariffs. The Warm Home Discount is a separate £150 winter rebate for low-income households.
Read the explainer →Water bills, social tariffs and WaterSure
Water and sewerage in England and Wales is supplied by regional monopolies — you can't switch supplier as a household. But every supplier must offer a 'social tariff' to lower-income customers, plus the WaterSure scheme, which caps bills for people on benefits who use a lot of water for medical or family reasons.
Read the explainer →Broadband social tariffs and Ofcom's mid-contract price rules
Most major UK broadband providers offer cheap 'social tariff' packages — typically £10–£25 a month — to customers receiving Universal Credit, Pension Credit and certain other benefits. From 17 January 2025 Ofcom's new rules also require any mid-contract price rises to be set in pounds and pence at sign-up, not inflation-linked.
Read the explainer →Flight delay and cancellation compensation under UK261
If your flight is delayed by 3+ hours, cancelled at short notice, or you are denied boarding, UK261 (the retained version of EC261/2004) entitles you to fixed cash compensation — between £220 and £520 per passenger — plus a duty of care from the airline, provided the airline is at fault. The rules apply to any flight departing the UK, and to UK/EU airline flights arriving in the UK.
Read the explainer →Council tax rebanding: how to challenge your band (and the risks)
England's and Scotland's council tax bands are still based on 1991 property valuations (2003 in Wales). Hundreds of thousands of homes are estimated to be in the wrong band — and the Valuation Office Agency (or Scottish Assessors) will review your band for free. A successful challenge can cut your bill and trigger a backdated refund — but a review can also push your band UP, including for neighbours. Read this guide before you act.
Read the explainer →Energy switching guide: how to find a cheaper tariff
Energy switching is one of the quickest ways to cut household bills. From 1 July 2026 the Ofgem price cap rises about 13% for typical dual-fuel homes, so standard-variable customers should compare fixes before the reset. The switching process is straightforward: compare, choose, and your new supplier handles the rest. No pipes or wires change — just who bills you.
Read the explainer →Train delay compensation: how to claim money back
Train delays are frustrating, but most UK operators offer compensation under their Passenger Charter. The rules vary by operator, but the principle is the same: if your journey is significantly delayed, you are entitled to money back. Many passengers never claim — operators do not automatically refund you.
Read the explainer →SIM-only vs phone contract: which saves you money?
Phone contracts bundle a handset and airtime into one monthly payment, making the phone cost invisible. SIM-only plans sell just the airtime — minutes, texts, and data — at a lower monthly price. For most people, buying a phone separately and choosing SIM-only is the cheaper long-term option.
Read the explainer →Home insulation grants: free and subsidised energy efficiency
Poor insulation is one of the biggest causes of high energy bills. The UK government and energy suppliers fund schemes to help households install insulation at reduced or no cost. Eligibility depends on your property type, income, and existing insulation levels.
Read the explainer →Smart meter bills explained
Smart meters send automatic readings to your supplier, which ends estimated bills and catch-up direct debits. You can refuse installation in England and Scotland, though suppliers may still replace unsafe traditional meters. This guide explains how smart meters affect your bills and your rights.
Read the explainer →Water meter vs unmetered charges explained
Water companies in England and Wales must offer free meter installation on request. Switching back to unmetered billing is usually restricted within two years of having a meter fitted. This guide compares costs and helps you decide whether a meter suits your household.
Read the explainer →TV licence rules UK explained
TV Licensing enforces payment through inspection and can prosecute, with fines up to £1,000 plus court costs in England and Wales. Over-75s no longer get a free licence unless they receive pension credit. This guide clarifies when you need a licence and when you do not.
Read the explainer →Standing charge explained
Ofgem caps both unit rates and standing charges for default tariffs. Low energy users pay a higher proportion of their bill in standing charges than heavy users. This guide explains the structure and how to compare tariffs fairly.
Read the explainer →Council tax single person discount explained
Adult children and lodgers usually end single person discount eligibility. Second homes and empty properties face premiums in many council areas. This guide explains who qualifies and how to apply for the 25% reduction.
Read the explainer →Cheap energy deals UK: fix vs price cap (July 2026)
Energy is the bill most UK households can cut fastest by switching. The price cap sets a ceiling on standard variable tariffs, not a target — suppliers compete below it on fixed deals. After the July 2026 cap rise, staying on a default tariff without comparing is usually the expensive option.
Read the explainer →Broadband switching guide UK: One Touch Switch and social tariffs
Millions of UK households pay post-contract 'loyalty' prices on broadband. Switching no longer means chasing two providers — the new supplier handles cancellation. Pair a switch with a mobile SIM-only move and social-tariff check if you claim benefits.
Read the explainer →SIM-only and mobile switching: cut your phone bill after the handset is paid off
Mobile is the second-fastest household saving after energy for many families. Network operators rely on customers staying on inflated contracts after the phone is theirs. SIM-only separates airtime from hardware cost.
Read the explainer →Solar panels UK: are they worth it in 2026?
Rising electricity prices and the Smart Export Guarantee (SEG) revived home solar economics. Panels are not right for every roof — shading, orientation, and whether you can use power while the sun shines drive the maths.
Read the explainer →WaterSure and water bill help in England and Wales
Water bills are often overlooked in money makeovers. Metering, WaterSure, and company-specific assistance schemes can cut hundreds of pounds a year for qualifying households.
Read the explainer →Mobile mid-contract price rises explained
Annual surprise bill hikes were common on UK mobile contracts until Ofcom reformed the rules. Existing contracts signed before January 2025 may still allow older rise mechanisms until they end. This guide explains your rights and how to respond.
Read the explainer →Mobile social tariffs UK: cheap phone plans on benefits
Broadband social tariffs are well known; mobile-only social tariffs are newer and less advertised. If you rely on phone data rather than home broadband, or need a cheap second line, a mobile social tariff can cut bills significantly without a credit check.
Read the explainer →Social tariffs UK guide: broadband, mobile and water
If you receive qualifying benefits, you may be entitled to three separate types of social tariff: home broadband, mobile phone, and water bill reduction. This hub links each scheme, explains shared eligibility rules, and shows how to apply without paying early-exit fees where providers allow.
Read the explainer →How to compare broadband deals in the UK
Broadband is a major household bill and switching can cut cost when contracts end. Ofcom rules require providers to show annual price-rise amounts at sale. This guide explains how to quote fairly across fibre, cable and full-fibre products.
Read the explainer →Heat pumps UK: costs, grants and whether they’re worth it (2026)
Heat pumps are increasingly considered as gas boiler replacements as energy policy and insulation standards evolve. This guide weighs costs, grants, suitability and running economics — not an installer recommendation.
Read the explainer →How to compare mobile phone deals in the UK
Mobile is a recurring bill where the wrong contract can cost hundreds over two years. Ofcom rules require annual in-contract price rises to be shown in pounds and pence at sale. This hub explains how to compare fairly — information only, not a product recommendation.
Read the explainer →How to reduce your water bill in the UK
Water is the only utility you cannot switch supplier for — your regional monopoly sets charges. Savings come from choosing the right charging method, cutting use, and claiming help schemes. This guide focuses on practical reductions and complements our water meter comparison page without repeating it wholesale.
Read the explainer →How to compare energy tariffs fairly in the UK
Energy comparison is a regulated activity in Great Britain. The price cap limits standard variable tariffs but fixed deals may beat or lag the cap depending on wholesale markets. This hub explains fair comparison without naming specific suppliers — verify live quotes on an Ofgem-accredited comparison service.
Read the explainer →Business energy contracts explained for UK firms
Comparison sites quote business gas and electricity separately from household tariffs. Contract law differs — rollover and auto-renewal rules were tightened for micro-businesses but larger firms negotiate bespoke deals. This hub explains fair comparison for shops, offices and home-based traders.
Read the explainer →Broadband and TV bundle deals explained in the UK
Providers push bundles with headline monthly prices that rise mid-contract under Ofcom disclosure rules. One Touch Switch coordinates broadband moves; TV contracts may have separate minimum terms. This hub explains fair comparison without recommending specific packages.
Read the explainer →
Quick answers on bills, energy
Short, direct answers that link back to this guide and our calculators — useful when you need one rule fast.
- How do I compare energy tariffs in the UK?
- What is the difference between fixed and variable energy tariffs?
- What is a dual fuel energy tariff?
- What are energy tariff exit fees?
- Is a green energy tariff worth it?
- What is a business energy contract?
- What protections do micro-businesses have on energy?
- What are deemed business energy rates?
Common questions
- Is switching energy supplier still worth it?
- Yes — but the decision depends on your tariff. From 1 July 2026 the Ofgem price cap rises about 13% for typical dual-fuel homes, so standard-variable customers should compare whole-of-market fixes before the reset. Already on a fix? Leaving early usually triggers exit fees unless you are in the last 49 days of the contract or your supplier offers a penalty-free refix. The cap lags wholesale prices by several months, so fixes can beat the cap when markets stay high — or underperform if prices fall.
- What if I can't pay my energy bill?
- Contact your supplier immediately — they're required by Ofgem rules to offer a payment plan. Don't ignore letters or you risk a prepayment meter being installed. The Warm Home Discount (£150) is paid automatically to most Pension Credit and low-income Universal Credit households.
- My direct debit just doubled — is that allowed?
- Suppliers can adjust direct debits to reflect annual usage, but the increase must be justified. Ask for a breakdown of your usage forecast. If you've been overcharged into credit, you can request a refund of any balance over one month's worth of bill.
- What is the Priority Services Register?
- A free, no-questions-asked register run by your energy and water suppliers offering extra help if you're elderly, disabled, have a long-term illness, are pregnant or have young children, or rely on medical equipment. Benefits include advance notice of outages, priority reconnection, accessible communications and a free annual gas safety check. Apply by calling your supplier.
- Should I move to a smart meter?
- Smart meters are free and most suppliers now offer time-of-use tariffs (cheap overnight, expensive at peak) that only work with one. Useful if you can shift heavy usage (EV charging, dishwasher, washing machine) to off-peak hours. Less useful if your usage is steady through the day. Either way, smart meters don't cost more to run and the in-home display can highlight standby waste.
- Can I refuse a prepayment meter?
- Ofgem strengthened the rules in 2023: suppliers can't force-fit prepayment meters on customers who are over 75, have a severe medical condition, have young children or are otherwise considered vulnerable. They must offer a payment plan and show evidence they've tried. If a supplier ignores these rules, complain — and if unresolved, escalate to the Energy Ombudsman.
- How does the One Touch Switch process work?
- Since April 2024, switching landline or broadband to any UK provider must work with a single call or online sign-up to the new provider. They handle the cancellation of the old service for you. You get notification letters from both, can decline within 14 days, and any early-exit fees from your old provider must be made clear up front.