Bills, energy & council tax
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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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 →
Common questions
- Is switching energy supplier still worth it?
- Sometimes — the market is more active than during the 2022–23 crisis. Use a comparison site that shows whole-of-market results (Ofgem's accredited list is the starting point). Only switch to a fix if it's clearly cheaper than the current price cap.
- 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.