Business gas rates per unit UK: switch today
Understand what “per unit” business gas pricing really means, what changes your p/kWh, and how to compare like-for-like quotes. Get a whole-of-market view in minutes (no guesswork, no invented rates).
- Clear explanation of unit rates, standing charges, and contract types
- Practical checklist + pitfalls to avoid before you switch
- Two realistic cost scenarios (with transparent assumptions)
Business energy prices vary by meter type, usage, location, credit checks and contract terms. Quotes are estimated until confirmed by the supplier.
Fast answer: business gas rates per unit UK switch today
To switch today using business gas rates per unit UK, compare quotes on the total cost: the unit rate (p/kWh) plus the standing charge, then check contract length, fees and meter type. The most important figure is your estimated annual cost using your kWh usage—not the headline p/kWh alone.
Key takeaway #1
A lower p/kWh can still cost more overall if the standing charge is higher (especially for low-usage sites).
Key takeaway #2
Your meter type and profile matter: U6 and SME quotes are usually different from I&C and multi-site contracts.
Key takeaway #3
Switching is mostly paperwork: you normally keep the same pipes and meter—your supplier changes, and your contract terms change.
Important: Business gas pricing is not price-capped in the same way as most domestic tariffs, and deals change frequently. Use a live comparison to see what’s available for your postcode and meter point.
What “business gas rate per unit” means (and what to compare)
In the UK, business gas bills typically include a unit rate (how much you pay per kilowatt hour, shown as p/kWh) and a standing charge (a daily cost to keep the supply available). When people search for “rates per unit”, they often only look at p/kWh—yet for many SMEs, the standing charge and contract terms can make a bigger difference than expected.
A simple like-for-like comparison method
Estimated annual cost is the most reliable way to compare quotes. You can estimate it as:
(Annual kWh × unit rate) + (365 × daily standing charge)
Then check whether charges are fixed for the full term, whether VAT is included, and whether any fees apply if you leave early or change tenancy.
What changes the unit rate you’ll be offered
- Usage level and pattern (smaller users may see different pricing than higher, steadier users).
- Meter type / supply class (for example U6 vs larger industrial/commercial setups).
- Location and network costs (regional differences can affect total pricing).
- Contract length (shorter can be more flexible; longer can offer budget certainty—terms vary).
- Payment method and credit checks (some suppliers price differently depending on risk and payment setup).
- Business type and site setup (single site vs multi-site; landlord supplies; sub-metering).
Tip: If you don’t know your annual kWh, your supplier bill usually shows it. If you’re new to the premises, use a realistic estimate and confirm once you have meter reads—quotes may change after validation.
How switching works (what happens after you request quotes)
- Tell us your details (postcode, contact, and a few business basics).
- We compare available options across the market view available to us for your meter type and usage.
- You choose based on total cost, term length, and conditions (not just p/kWh).
- Supplier confirms the final contract after validation (including meter point checks).
- Switch completes on an agreed date; gas supply continues as normal.
Get business gas quotes (whole-of-market view)
Share a few details and we’ll help you compare business gas prices based on your site. If you’re unsure of usage, we can still start with an estimate.
Compare business gas rates properly (what to ask for)
If you want to make a confident decision, ask for quotes in a consistent format. This helps you spot the difference between “cheap per unit” and “cheapest overall”.
Request these quote details
- Unit rate (p/kWh) and whether it’s fixed for the full term
- Standing charge (p/day)
- Contract length (e.g., 12, 24, 36 months)
- Any fees: exit fees, admin fees, deemed rate details
- Payment method requirements (e.g., direct debit, deposit)
- VAT treatment (most business energy is billed with VAT; eligibility for reduced VAT depends on circumstances)
Have these site details ready
- Postcode and business name (for credit and meter checks)
- Annual kWh usage (or last 12 months’ consumption)
- Meter Point Reference Number (MPRN) if available
- Current contract end date (or whether you’re out of contract)
- Whether you’re single site, multi-site, or moving premises
Deemed rates: If you move into a property and start using gas without agreeing a contract, you can be put on a deemed (out-of-contract) rate. These are often higher and can have specific notice periods. Switching sooner may reduce time on deemed terms.
What to compare (table) + decision checklist
Use the table below to keep your comparisons consistent. It’s designed to stop the most common mistake: choosing by unit rate alone.
| Comparison point | Why it matters | What to look for |
|---|---|---|
| Unit rate (p/kWh) | Drives most of your bill if you use a lot of gas. | Fixed vs variable, and whether there are price review clauses. |
| Standing charge | Big impact for low-usage sites and seasonal businesses. | Compare alongside unit rate using annualised cost. |
| Contract length | Affects flexibility and budget certainty. | Match term to your lease and business plans. |
| Exit fees | Can make switching mid-term expensive. | Ask how fees are calculated and when they apply. |
| Meter / site setup | Not all deals are available for all meter classes or multi-sites. | Confirm MPRN, meter read frequency, and any AMR/smart setup. |
This approach suits you if…
- You want a clear, auditable comparison (cost + terms)
- You have (or can estimate) annual kWh
- You’re near renewal or out of contract
- You’re responsible for energy decisions at one or more sites
It may not suit you if…
- You don’t control the supply (e.g., landlord provides energy)
- You’re on complex arrangements (sub-meters, embedded networks) where the “supplier” isn’t your biller
- You need a very bespoke procurement process (high consumption, tender rules, or strict ESG reporting)
Two realistic scenarios (with transparent assumptions)
Scenario A: small café, seasonal demand
Assumptions: 20,000 kWh/year gas use, open 6 days/week, heating demand peaks in winter. Comparing two quotes where Quote 1 has a lower unit rate but higher standing charge.
What to do: annualise both quotes using the formula and check whether the higher standing charge outweighs the unit saving at 20,000 kWh. Low-to-medium usage businesses often benefit from focusing on standing charge + exit fees as much as p/kWh.
Scenario B: small manufacturing unit, steady usage
Assumptions: 120,000 kWh/year gas use, consistent usage across the year, long lease in place. Comparing 12-month vs 24-month terms.
What to do: compare total annual cost and then weigh budget certainty (longer term) against flexibility (shorter term). For higher usage, small differences in unit rate can be more meaningful, but only if the terms are clear and any price review clauses are understood.
Why there are no p/kWh numbers above: live business gas rates change daily and vary by postcode, meter class, usage and credit. Publishing fixed numbers here would mislead. Your quote results are the right place for current figures.
Costs, exclusions and common pitfalls (before you switch)
Most switching issues aren’t about the unit rate—they’re about contract timing, meter validation, and unexpected fees. These are the points to check so you don’t waste time or end up on the wrong terms.
1) Contract end dates & rollover
Some business contracts have notice periods. If you miss them, you may roll onto out-of-contract or renewed terms. If you’re unsure, find the end date on your bill or ask your supplier.
2) Exit fees and change-of-tenancy
Leaving early can trigger termination charges. If you’re moving premises, ask what evidence is needed for change-of-tenancy and whether fees apply in your circumstances.
3) VAT and eligibility
Most business gas is billed with VAT. Some organisations may qualify for reduced rates depending on use/type—confirm with your accountant and supplier documentation.
4) Deposits and credit checks
Some suppliers may request a deposit or different payment terms depending on credit checks. This can affect which deals are available and the true “best” option for cashflow.
5) Meter data mismatches
Incorrect MPRN details, address formatting, or meter class issues can delay confirmation. Using a recent bill and keeping business details consistent helps prevent rework.
6) Comparing “extras” that don’t change your bill
Carbon claims, bundled services and account management can matter—but start with the fundamentals (unit rate, standing charge, fees, term) so the value is real and measurable.
Quick warning for new occupiers: If you’ve just moved in, you may need to complete a change-of-tenancy with the current supplier before a new contract can be finalised. Don’t ignore bills addressed to “The Occupier”—that’s often how deemed rates start.
FAQs: business gas rates per unit in the UK
What is a business gas unit rate?
A business gas unit rate is the price you pay per kilowatt hour (kWh) of gas your business uses, usually shown in pence per kWh (p/kWh). Your bill also usually includes a daily standing charge, so the unit rate alone doesn’t show the full cost.
How do I compare business gas rates per unit properly?
Compare quotes using estimated annual cost: (annual kWh × unit rate) + (365 × daily standing charge). Then check contract length, whether rates are fixed, and any exit fees or other conditions. This approach avoids choosing a deal that looks cheap per unit but costs more overall.
Can I switch business gas supplier today?
You can request quotes and start a switch today, but the actual switch date depends on your current contract end date, notice period, and supplier validation checks. If you are out of contract or on deemed rates, you may be able to move sooner—terms and timelines vary.
Why do business gas unit rates vary by postcode and meter type?
Business gas pricing can vary due to regional network costs, supply arrangements, and the risk/usage profile associated with your meter type and annual consumption. Suppliers also price differently depending on contract length and payment terms, so the same business may see different rates at different sites.
What information do I need to get an accurate business gas quote?
Ideally you’ll have your postcode, business details, annual kWh usage (or a recent bill), and your MPRN. If you don’t know your usage, you can start with an estimate, but the supplier may adjust the final quote after validating meter and consumption details.
Are business gas rates capped in the UK?
Business gas prices are not generally covered by the domestic Ofgem price cap. Business contracts are usually negotiated or offered on commercial terms, which vary by supplier and market conditions. Always use a live quote to see current options for your meter and usage.
What is a deemed rate and how do I get off it?
A deemed rate is an out-of-contract rate that can apply when a business uses gas without agreeing a new contract—common after moving into new premises. To get off deemed rates, you usually need to agree a contract with the current supplier or switch to a new supplier, depending on your situation and any required tenancy evidence.
Will switching business gas interrupt my supply?
Switching supplier doesn’t normally interrupt your physical gas supply because the network and meter stay the same. The change is administrative and contractual. Delays can happen if meter details don’t match records or if there’s an unresolved tenancy or debt issue, so accurate information helps.
Trust, methodology and sources
- Written by
- EnergyPlus Editorial Team
- Reviewed by
- Energy Specialist
- Last updated
- July 2026
How we assess “business gas rates per unit” on this page
This guide focuses on helping UK business owners compare quotes fairly and avoid common switching mistakes. We do not publish “today’s p/kWh” because business gas pricing is highly variable and changes frequently; publishing fixed numbers would quickly become inaccurate.
- Comparison principle: prioritise estimated annual cost (unit rate + standing charge) over headline unit rate.
- Assumptions in scenarios: realistic SME usage bands (e.g., ~20,000 kWh and ~120,000 kWh/year) to show how standing charge and unit rate trade off; figures are illustrative of method, not market prices.
- Limitations: final supplier pricing can depend on meter validation, credit checks, payment method, contract term, and site-specific factors. Quotes remain estimates until confirmed by the supplier.
Ready to compare business gas rates per unit?
See live options for your postcode and meter type, then choose based on total cost and terms. No invented figures—just quotes you can act on.
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