Business energy guide

What are out-of-contract business energy rates?

Out-of-contract energy rates can be one of the reasons UK businesses experience unexpected increases in electricity or gas costs. They usually appear when a business no longer has an active fixed energy agreement in place and the supplier applies default or variable pricing.

Last reviewed: 15 May 2026

Part of the CNG Switch Business Energy Guides library for UK businesses that want clearer contract visibility and adviser-led support.

Quick answer

Out-of-contract business energy rates are rates that may apply when a business is supplied with gas or electricity but no active fixed contract is in place. The supplier may continue supplying energy, but the pricing structure can move onto variable, default, deemed or out-of-contract terms.

For a more detailed explanation of how these rates work in practice, read our full guide: out-of-contract business energy rates explained.

What does out of contract mean?

A business is usually considered out of contract when its fixed energy agreement has ended and no new fixed contract has been arranged. The supply may continue, but the commercial terms may change.

During this period, the supplier may apply supplier-set pricing rather than the fixed rates the business previously agreed. The account may be described using terms such as:

• Out-of-contract rates.
• Deemed rates.
• Default pricing.
• Supplier variable rates.
• Non-contracted pricing.

The wording can vary by supplier, which is why reviewing the actual bill and supplier correspondence matters.

Why do businesses end up out of contract?

Businesses often move out of contract because renewal deadlines, supplier notice periods or contract end dates were missed. This does not usually happen because the business deliberately ignored its energy arrangements. More often, visibility gradually reduced over time.

Common causes include:

• Contract end dates were unclear internally.
• Supplier notices were overlooked.
• Renewal reviews happened too late.
• Staff responsibilities changed.
• The business operates multiple sites.
• Operational priorities took precedence.
• Contract paperwork was delayed or incomplete.
• Invoices were paid without reviewing tariff status.

Businesses rarely intend to remain out of contract. It usually happens because contract visibility reduced over time and no one had a clear renewal calendar.

Related guides: why businesses should track business energy renewal dates and business energy contract renewal guide.

Are out-of-contract rates higher?

Out-of-contract pricing is often higher than proactively reviewed fixed agreements, although structures vary between suppliers and account positions. The business should not assume the position without checking the latest bill and supplier terms.

Businesses may experience:

• Higher unit rates.
• Higher standing charges.
• Reduced pricing certainty.
• Variable supplier-set costs.
• Less confidence when budgeting future costs.
• Urgency to understand current contract status.

The exact impact depends on:

• Supplier terms.
• Site profile.
• Operational usage.
• Meter arrangements.
• Whether the account is electricity, gas or both.
• Whether the business has one site or several premises.

Related guide: why businesses should review energy bills before renewing.

Out-of-contract rates vs rollover contracts

Out-of-contract pricing and rollover contracts are often confused, but they are not the same thing. Understanding the difference helps a business know whether it may have flexibility or whether a new fixed arrangement has already been applied.

Out-of-contract rates

• No active fixed agreement exists.
• The supplier may apply variable or default pricing.
• Rates may change more frequently.
• Pricing visibility may reduce.
• The business should urgently check the account position.

Rollover contracts

• A new fixed agreement may be automatically applied.
• This can be triggered after missed renewal windows.
• Revised contract terms may apply.
• Immediate switching may be restricted depending on the terms.
• The business should check supplier correspondence and renewal wording.

Businesses should understand which situation currently applies to their supply arrangements before making a decision.

Related guide: business energy rollover rates explained.

Why multi-site businesses face greater risk

Businesses operating several sites often face additional visibility challenges. Different locations may have different suppliers, contract dates, billing contacts and meter arrangements.

Different locations may have:

• Different suppliers.
• Different contract end dates.
• Separate billing contacts.
• Different meter arrangements.
• Different electricity and gas renewal dates.
• Separate MPANs and MPRNs.

Without central visibility, businesses may discover that one site renewed correctly, another moved onto rollover rates and another became out of contract entirely.

This is particularly common across:

• Retail groups managing several stores.
• Hospitality businesses with more than one trading location.
• Warehouse operations with multiple units or meters.
• Office portfolios with different occupancy levels.
• Care home operators managing continuous supply across facilities.
• Manufacturing businesses with multiple production or operational sites.

Related guide: review business energy contracts before multi-site expansion.

How operational usage affects exposure

The commercial impact of out-of-contract pricing depends heavily on operational demand. A higher-usage business may feel the effect more quickly because unit rate differences are multiplied across larger consumption volumes.

Out-of-contract exposure can be more noticeable where businesses have:

• Machinery-heavy operations.
• Long trading hours.
• Commercial kitchens.
• Refrigeration or cold storage.
• Continuous heating or care requirements.
• Large lighting, ventilation or warehouse demand.

This is why reviewing operational usage is important. The right next step depends not only on the supplier rate, but also on how the business actually consumes energy.

Why early renewal reviews matter

Many businesses begin reviewing contracts only once invoices increase or supplier notices become urgent. Earlier visibility allows the business to understand its contract position before deadlines have already passed.

Earlier reviews allow businesses to:

• Understand renewal windows.
• Review pricing structures properly.
• Reduce rollover exposure.
• Avoid out-of-contract pricing where possible.
• Assess operational changes calmly.
• Review invoices before making contract decisions.
• Check whether standing charges have changed.

Suppliers may begin renewal discussions before contract expiry, but businesses should maintain their own records rather than relying only on supplier reminders.

Related guide: how to avoid rollover energy rates.

What businesses should check

If a business is unsure whether it is out of contract, the latest bill and supplier correspondence are the best starting points. The aim is to understand the current position before agreeing new terms.

Businesses should maintain visibility over:

• Contract end dates.
• Supplier notice periods.
• Current pricing structures.
• Unit rates.
• Standing charges.
• Meter arrangements.
• MPANs and MPRNs.
• Site-level billing.
• Whether readings are actual or estimated.
• Whether supplier wording suggests default, deemed or variable terms.

Businesses with several premises should also confirm whether all locations remain on the intended contract structure.

Related guides: how to read a business energy bill, understanding business energy standing charges, what is an MPAN number? and what is an MPRN number?

Why adviser-led reviews matter

Commercial energy arrangements can become difficult to manage internally when several sites exist, suppliers differ between locations, operational structures change, billing formats vary or contract visibility reduces over time.

Adviser-led reviews help businesses improve visibility across:

• Current contracts.
• Renewal timelines.
• Out-of-contract exposure.
• Supplier arrangements.
• Operational energy usage.
• Standing charges and unit rates.
• Billing and meter details.

The goal is not simply to focus on rates. It is to support informed commercial decision-making and clearer operational visibility.

CNG Switch is not a comparison website or instant pricing engine. Our adviser-led approach focuses on contract visibility, renewal planning, billing clarity and business energy support.

FAQs

Unsure if your business is out of contract?

If your invoices have increased unexpectedly or your current contract position is unclear, CNG Switch can help review your setup and explain the next steps clearly.

The review focuses on contract visibility, renewal timing, billing details, standing charges, meter records and whether any rollover or out-of-contract exposure may need attention.

No guaranteed savings. Available options depend on supplier criteria, usage profile, contract timing, meter details and business circumstances.