What happens if you don't switch? Rollover and deemed rates, explained
The two situations you never want to be in
Deemed rates apply when a business takes over a premises and there's no active contract — you're 'deemed' to be a customer. Out-of-contract or 'rollover' rates apply when your existing contract expires without a renewal in place. Both are expensive, and both are entirely avoidable.
Why they cost so much
Suppliers price deemed and out-of-contract customers as high-risk: no signed contract, no minimum term, and a customer that either hasn't shopped around or has just moved in. The result is typically 40-80% higher than a negotiated tariff.
How to escape one
If you're on a deemed or out-of-contract rate right now, you can switch immediately — you're not bound by any minimum term. The switch itself will take 4-6 weeks, but every day counts because you're paying the punitive rate until then.
How to never end up on one
Set a reminder for 6 months before your contract end date the day you sign a new one. That's the sweet spot for renewing — inside most renewal windows but not under time pressure. Or use a broker that tracks it and prompts you.
Ready to save?
Compare business energy prices now
Free, no-obligation quotes from our UK panel in under 60 seconds.
Get my free quote