How to Cut Your Energy Bill in the UK

The energy price cap rose to £1,723 a year for a typical household on 1 October 2026 — its highest level in three years. The government has removed VAT from electricity bills, saving roughly £45 a year until the end of March, but most households still need to act. Here's what actually moves the needle.

Check your tariff first

A Uswitch poll found 67% of households hadn't switched their energy tariff in the last year — and staying put is usually the most expensive option. Before you do anything else:

Find out whether you're on your supplier's standard variable tariff — it's usually the priciest.
If your fixed deal is ending, compare tariffs before it expires so you don't roll onto the standard rate.
Use a comparison site to check what's available; note the daily standing charge as well as the unit rate.

Cut what you use

Heating is the biggest slice of most energy bills. Small changes add up over a winter:

Turn the thermostat down by one degree — you likely won't notice, but your bill will.
Use thermostatic radiator valves to heat only the rooms you're using.
Draught-proof doors and windows; most of it is cheap DIY.
Wash clothes at 30 degrees and wait for full loads.
Switch off standby on TVs and consoles, and don't leave phone chargers plugged in.
Only boil the water you need in the kettle.

If you're struggling to pay

Talk to your supplier early — they must offer you an affordable payment plan if you're falling behind.
Ask about hardship funds and any grants your supplier runs.
Check whether you qualify for the Warm Home Discount or other government support schemes.
Your local council may run emergency support for energy costs — it's always worth asking.

Frequently asked questions

Does switching energy supplier still save money?

It can, especially if you're on a standard variable tariff. Even when fixed deals aren't much cheaper than the cap, switching to a better tariff or a supplier with lower standing charges can cut your annual cost.

What is the energy price cap?

It's the maximum amount suppliers can charge per unit of energy and as a daily standing charge on default tariffs. It doesn't cap your total bill — use less and you pay less, whatever the cap is.

Should I get a smart meter?

A smart meter shows what you're using in near real time, which makes it easier to spot waste. Installation is free from your supplier, and it ends estimated bills.

What if I can't afford my energy bill?

Contact your supplier straight away — they have a duty to help, including payment plans and emergency credit. Don't just stop paying, as that leads to debt and extra charges.

How to cut your energy bill