Should I switch energy supplier?
Everyone on the standard variable tariff sees the same quarterly price cap reset. If you're on a fixed deal, the right move depends on when it ends and what leaving early costs. Answer three quick questions for a straight answer.
Short answer
On the default standard variable tariff, comparing is usually worth it — the cap resets your rates every quarter. On a fixed deal, the answer hangs on when it ends and the exit fee. Answer three questions below for your situation.
£1,663
current cap, typical use (Jul–Sep 2026)
up to 5
working days to switch (Ofgem)
~£143/yr
saved moving standard credit → direct debit
Worth comparing now
- You are on the default tariff the Ofgem price cap governs (£1,663 a year for typical use, Jul–Sep 2026) — doing nothing accepts every quarterly reset automatically.
- Fixed deals priced below the cap usually exist, and switching takes up to 5 working days once you decide.
For the exact number on your usage, upload your bill — about 60 seconds.
When switching usually wins
- You're on the standard variable tariff — every quarterly cap reset is a fresh chance for a cheaper fixed deal to beat it.
- Your last fix already ended and you rolled onto the default tariff without checking the market.
- You've found a live deal that clearly beats your current rate once any exit fee is accounted for.
When waiting usually wins
- You're mid-fix and leaving early means an exit fee — the saving needs to clearly beat that fee, not just edge past it.
- Your fix still has months left and today's live deals aren't meaningfully cheaper than the rate you already locked in.
- Your fix ends soon anyway — it's often simpler to line up the next deal than pay to leave early.
Timing around price cap resets
Ofgem reviews the price cap every three months, and each review can move standard variable rates up or down. Nobody can reliably time the next reset, so the more useful trigger is a change in your own situation — a renewal email, a house move, or simply not having compared in a while.
Should I switch energy supplier — common questions
Should I switch energy supplier?
It depends on your tariff. On the standard variable tariff, the price cap resets your rates every quarter, so comparing usually pays — currently £1,663 a year for typical use (Jul–Sep 2026). On a fixed deal, it comes down to when your fix ends and whether an exit fee would outweigh the saving. Answer three quick questions above for a verdict based on your situation.
When is the best time to switch energy supplier?
If you're on a fixed tariff, the safest window is the weeks before it ends — line up your next deal so you don't roll onto the default tariff or pay an exit fee. If you're on the standard variable tariff, there's no fixed window: rates reset every quarter, so you can compare and switch at any time.
Is it worth switching energy supplier?
Often, yes — especially from the standard variable tariff, where switching takes up to 5 working days and a cheaper fixed deal may exist below the current cap. On a fixed tariff, it's worth it only when the saving clearly beats any exit fee. If you pay by standard credit, moving to direct debit alone saves about £143 a year without switching supplier.
When can I switch energy supplier without penalty?
Switching from the standard variable tariff is free at any time — there's no exit fee on SVT. On a fixed deal, you can usually leave penalty-free once you're within the supplier's renewal window, often the last few weeks of the term. Leaving earlier than that typically triggers an exit fee.
Are there any hidden costs when switching energy supplier?
The switch itself is free — suppliers don't charge for the process, which typically completes in up to 5 working days. The one cost to check is an exit fee for leaving a fixed deal before it ends, so read your current tariff's terms before you commit.
Go deeper on your switching decision
Use these pages to see the current cap, size your likely saving, and handle a renewal email with confidence.
Start here
UK energy price cap explained
RecommendedSee the current cap, the cap history, and how the quarterly reset works.
How much can I save by switching?
A realistic look at typical switching savings so you can size the opportunity.
Energy switching questions answered
Longer-form answers to common switching questions, from cooling-off periods to smart meters.
Energy renewal email: 10-minute action plan
Got a renewal notice? Use this checklist to decide renew, switch, or hold.
Get the answer for your actual bill
The checker above gives you a general direction. Upload your bill and Taupia checks your real tariff, usage, and any exit fee against live deals in under 60 seconds.