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A business energy bill is designed to be hard to read, which is exactly why so many firms overpay without realising. Once you know what each line means and where your money actually goes, spotting a poor deal becomes simple. This guide breaks the bill down piece by piece, so you can read your own and know at a glance whether you are getting a fair deal.
In short. Your bill is a unit rate per kWh plus a daily standing charge, with VAT and the Climate Change Levy on top. Only around a third to 40 percent of the cost is the energy itself. The rest is networks, policy costs and supplier margin, which is why quotes cluster within a range.
Unit rate. What you pay per kWh of energy you actually use, shown in pence. This is the number most people focus on, and the one suppliers advertise.
Standing charge. A fixed daily fee for keeping the supply connected, charged whether you use any energy or not. A low unit rate paired with a high standing charge can still be poor value, so always read the two together against your usage.
The unit rate is not all supplier profit, and understanding the split explains a lot about pricing. Roughly a third to 40 percent is the wholesale cost of the energy itself. The rest is made up of network charges for the cables and pipes that deliver it, government policy and environmental costs, metering, and the supplier margin.
This matters when you compare, because no supplier can undercut the network and policy costs. They compete only on their margin and on how well they buy wholesale energy. So a quote that looks dramatically cheaper than the rest deserves a close look at the small print, because the genuine room to differ is smaller than the headline suggests.
VAT. Usually charged at 20 percent on business energy. Some very low usage businesses and charities qualify for a reduced 5 percent rate, so it is worth checking whether you do and submitting a VAT declaration if you qualify.
Climate Change Levy. A government tax on the energy your business uses, listed as a separate line. It is not negotiable, but knowing it is there helps you compare quotes fairly, because a rate quoted before these costs will look cheaper than one that includes them.
You will also see references and readings worth knowing.
MPAN and MPRN. The unique references that identify your electricity supply (MPAN) and gas supply (MPRN). Keep them handy when requesting quotes so suppliers price accurately.
Meter readings and the billing period. Check whether readings are actual or estimated. An estimate that is too high inflates the bill until it is corrected, so submit regular readings.
Your contract status. The bill usually shows whether you are on a fixed deal or a default rate, and often your contract end date.
✓ Check the contract end date and whether you are on a fixed deal or a default rate.
✓ Compare your unit rate against current market rates for your usage.
✓ Confirm the readings are actual, not estimated.
✓ Check the standing charge against what similar businesses pay.
✗ A bill labelled out of contract or deemed, which signals expensive default rates.
✗ A run of estimated bills that never seem to be reconciled.
If your bill says out of contract or deemed, you are almost certainly overpaying. Those default rates are the most expensive on the market, and moving to a fixed deal you have chosen is usually the single biggest saving available.
Standing charges are easy to ignore because they are small per day, but they add up. A 55p daily electricity standing charge is around 200 pounds a year before you use a single unit, and gas adds its own. Two quotes with the same unit rate can differ by well over 100 pounds a year on standing charge alone, which is why reading the two numbers together, against a full year, matters more than glancing at the headline rate.
Reading the bill is only useful if you act on what it tells you. If you find you are out of contract or on a deemed rate, the priority is to agree a fixed deal you have chosen, because that is where the biggest overpayment usually sits. If your readings are estimated, submit an actual reading so the next bill reflects real use rather than a guess. If your standing charge looks high against similar businesses, carry that into your next comparison instead of focusing only on the unit rate. And if you think you qualify for reduced VAT, ask your supplier and submit a declaration. None of these steps takes long, and together they turn a confusing bill into a short, practical checklist that keeps you from quietly overpaying month after month.
It is a fixed daily fee that covers keeping your supply connected and maintained, regardless of how much energy you use.
Because the wholesale cost is only part of the bill. Network charges, policy costs, metering and supplier margin make up the rest.
Possibly, if your usage is very low or you are a charity or non profit. Check with your supplier and submit a VAT declaration if you qualify.
They are the unique references for your electricity supply (MPAN) and gas supply (MPRN). Keep them handy when requesting quotes so suppliers can price accurately.
Regularly, ideally monthly, to keep your bills based on actual use rather than estimates that can drift too high or too low.