Business energy arrears can lead to disconnection, but suppliers must follow a set process first — they cannot simply cut you off without warning. Commercial energy customers do not get the same automatic protections as households, so understanding that process matters. This article explains how business energy debt is treated, what happens before disconnection, and how to keep the supply running while you sort out a repayment plan.
If you are behind on gas or electricity bills, the priority is to respond early. Suppliers have discretion over how they handle business energy arrears, and directors who engage quickly usually have far more options than those who go quiet.
How business energy debt differs from domestic debt
Domestic energy customers are protected by Ofgem rules that limit when and how a household can be disconnected, particularly over winter and for vulnerable customers. Business customers are not covered by these same protections.
A commercial energy contract is treated as a business-to-business agreement. This means:
- There is no statutory ban on disconnecting a business over winter.
- Suppliers set their own arrears and disconnection policies within their licence conditions.
- Contract terms — not consumer protection rules — largely decide what happens next.
- Disconnection is usually a last resort, but it is a real possibility if arrears are ignored.
This is why business energy arrears need attention sooner rather than later. Contracts vary supplier to supplier, so check yours for the specific arrears and termination clauses that apply.
Deemed and out-of-contract rates and why bills spike
Many directors are shocked to find their bills have jumped sharply, often just as arrears build. This is usually down to falling onto a deemed contract or out-of-contract rate.
A deemed contract is a default agreement — one you did not choose — that applies automatically when a business starts using energy at a site without a formal contract in place, for example after moving premises or when a fixed-term deal expires without a renewal being agreed. An out-of-contract rate applies when an existing contract ends and no new one is signed.
Both tend to charge considerably more per unit than a negotiated business tariff, because they carry none of the discounts built into a fixed agreement. This can turn a manageable bill into a serious cash pressure within a few months, deepening business energy arrears that were already difficult to clear.
The supplier's process before disconnection
Suppliers generally follow a broadly similar escalation path once a business account falls behind, although the exact timing depends on the supplier and the contract:
- Reminder letters and calls. The supplier flags the missed payment and asks for it to be cleared.
- Formal arrears notices. These set out the amount owed and a deadline to pay or agree a plan.
- Warning of further action. This may mention disconnection, a security deposit, or a debt being passed to a collections agent.
- Final notice. A last opportunity to pay or make contact before formal disconnection steps begin.
Throughout this process, the supplier is usually willing to talk. Business energy disconnection is costly and disruptive for the supplier too, so most would rather agree a repayment plan than cut off a paying customer.
Notice periods and warrants for entry
A supplier cannot disconnect a business premises on the spot. It must give reasonable notice, and if the meter is inside the property, it usually needs a warrant to enter — an order from a magistrates' court or, in Scotland, a sheriff, granting the right to access the premises to disconnect the supply.
In practice this means:
- You will normally receive written notice of the intended disconnection date.
- The supplier must apply to the court for a warrant if it needs to enter to disconnect.
- You are entitled to know why the warrant is being sought and can raise concerns with the court.
- Genuine engagement with the supplier at this stage can often still stop disconnection going ahead.
This notice period is your opportunity to act — either by paying what you can, disputing an incorrect bill, or agreeing terms before matters reach court.
Security deposits the supplier may demand
Where a business has a poor payment record, or where arrears have already built up, a supplier may ask for a security deposit before it will continue supplying, or before it will agree a new contract. This is a sum held against future non-payment, similar in principle to a rental deposit.
Deposits are more likely to be requested when:
- The business has missed payments in the past 12 months.
- Credit checks flag a weaker financial position.
- The company is switching supplier while carrying arrears.
- A previous account with any supplier ended in unpaid debt.
Deposit amounts vary but are often based on estimated annual usage. If cash is already tight, a large deposit request can itself become a fresh pressure point on top of existing business energy arrears.
Switching supplier while in debt
It is a common misconception that switching supplier clears the problem. In reality, most suppliers will block or complicate a switch where there is unpaid debt on the account, particularly for a business site.
What typically happens:
- The current supplier can object to the switch until arrears below a certain level are cleared or a plan is agreed.
- Above that level, the switch is usually blocked outright until the debt is resolved.
- A new supplier may still ask for a security deposit if it takes you on with a poor payment history.
- Switching does not remove the debt — it stays owed to the original supplier regardless.
If disconnection risk is the concern, the more reliable route is usually to deal directly with the current supplier rather than attempt to switch away from the problem.
Negotiating a repayment plan and avoiding disconnection
Most business energy disconnection cases are avoidable if the director engages before matters reach a final notice. Suppliers generally prefer a workable repayment arrangement to the cost and hassle of disconnecting a commercial customer.
Practical steps that help:
- Contact the supplier early — before arrears escalate, not after a final notice arrives.
- Check the bill — confirm you are not on an inflated deemed or out-of-contract rate by mistake.
- Propose a realistic instalment plan — one you can actually sustain alongside other outgoings.
- Get any agreement in writing — including the payment schedule and what happens if a payment is missed.
- Review wider cashflow — energy arrears are rarely the only pressure; a fuller view of the business's cash position helps decide what is realistic to offer.
If energy arrears are one symptom of broader financial strain, it is worth stepping back and looking at the whole picture rather than firefighting each creditor individually. Our guide to Business Cashflow Crisis: How to Take Control sets out how directors can assess and stabilise cashflow pressure across the business, not just with one supplier.
Where arrears remain unresolved despite attempts to negotiate, a supplier can in some cases pursue formal debt recovery, and unpaid business debts can eventually support a creditor's statutory demand or winding-up petition under the Insolvency Act 1986. That is a further step down the line, but it is one reason early engagement on energy arrears is worth prioritising rather than leaving unresolved.
Frequently asked questions
Can a supplier disconnect a business over unpaid energy bills?
Yes, in principle, but only after following its arrears process and, where the meter is inside the premises, obtaining a warrant to enter. Disconnection is generally a last resort after reminders and formal notices have gone unanswered.
Is there a grace period before business energy disconnection?
There is no single fixed statutory grace period for business customers, unlike some domestic protections. The timeline depends on the supplier's own arrears process and contract terms, which is why checking your agreement and responding to notices promptly matters.
What is a deemed contract and why does it cost more?
A deemed contract is a default supply agreement that applies automatically when there is no formal contract in place, for example at a new site. It usually charges a higher unit rate than a negotiated tariff, because it carries none of the discounts built into a fixed agreement.
Can I switch energy supplier if my business has arrears?
Usually not without first resolving the debt. Suppliers can object to a switch while arrears remain outstanding, and a new supplier may ask for a security deposit if it agrees to take on the account.
What should I do first if I can't pay a business energy bill?
Contact the supplier before the account escalates, check the bill is correct, and propose a repayment plan you can realistically sustain. Getting help with a wider view of business debt can also help you see how energy arrears fit alongside other pressures — see gov.uk guidance on getting help if your business is in debt.
This article is general information, not legal, financial or insolvency advice. Every supplier contract and situation is different, and directors should speak to a regulated specialist about their own circumstances.
If energy arrears are part of a wider cashflow problem, Harbourfirst can introduce you to a regulated insolvency practitioner or solicitor who can look at the full picture with you — start an enquiry.