Small business energy, explained
How the energy market treats small businesses, the protections you’re owed, the VAT check most people miss, and how to sort a fair contract without losing a morning to it.
Energy sits somewhere on the small business to-do list below payroll and above descaling the coffee machine. It gets attention twice a year at most, usually when the direct debit jumps. The awkward part is that the business energy market was largely built around big consumers, and the rules that protect a shop, a salon or a small office are scattered across places nobody has time to read. This is all of it in one place.
Small businesses buy energy on business contracts priced for their specific meter, with no cooling-off period and no price cap. If you have fewer than 10 employees, or use under 100,000 kWh of electricity or 293,000 kWh of gas a year, you count as a micro business and get extra protections around contract terms, renewals and disputes. Very low users also pay 5% VAT instead of 20%.
Quick snapshot
- Small businesses can’t use domestic tariffs at business premises, but if you count as a micro business you get specific legal protections, and many small firms qualify without knowing it.
- Very low users pay 5% VAT instead of 20% and no Climate Change Levy. Suppliers are supposed to apply this automatically. In practice it’s worth checking your bill.
- Since December 2024, small businesses with up to 50 staff can take unresolved complaints to the Energy Ombudsman, with awards of up to £20,000.
How the market treats small businesses differently
If you’ve switched energy at home, forget most of what that taught you. There’s no public price list for business electricity or gas, no dual fuel discount, and no 14-day cooling-off period once you’ve signed. Every contract is priced for your specific meter, your usage and your credit profile, and it binds from the moment you agree it, sometimes on a recorded phone call.
That sounds harsher than it plays out day to day. Business contracts are usually cheaper per unit than domestic ones because you’re buying at commercial rates without the domestic price cap machinery. The catch is that the market assumes you know what you’re doing, and a small business owner doing this once every couple of years is the least-served customer in it.
The regulator knows this, which is why the smallest businesses get their own tier of protection. That tier has a name, and it’s worth knowing whether it covers you.
What counts as a micro business, and what it gets you
Ofgem treats you as a micro business if you meet any one of these tests. Fewer than ten employees (or their full-time equivalent) with annual turnover or balance sheet no more than £2 million. Or annual electricity use of no more than 100,000 kWh. Or annual gas use of no more than 293,000 kWh. Most cafés, salons, shops and small offices fall comfortably inside at least one of them.
Qualifying changes real things. Suppliers must show your contract end date and notice period on your bills, so you can’t lose track of the renewal window by filing the paperwork. You can serve termination notice at any point up to the end date rather than being caught by a 30-day notice trap. Faster switching rules mean the move itself should take about five working days. And if a broker or comparison site mishandles your contract, there’s a free alternative dispute resolution scheme built for exactly that argument.
Taking on new premises, and the deemed rates trap
The most expensive energy most small businesses ever buy is the energy they never agreed a price for. Move into premises without arranging a contract and you’re automatically supplied on a deemed contract, at rates typically far above anything negotiated. It happens quietly. The lights work on day one, the first bill takes weeks to arrive, and by then you’ve paid default prices for the whole period.
The fix is undramatic. Deemed rates carry no exit fee and no notice period, so you can move to a proper contract as soon as you like. If you’ve just taken keys somewhere, sorting the energy in the first week genuinely pays for the admin time many times over. Our change of tenancy guide walks through the process step by step.
The 5% VAT check most small businesses miss
Business energy normally carries 20% VAT. But under the de minimis rules, low usage is billed at 5% instead, and it escapes the Climate Change Levy entirely. The thresholds are averages across the billing period. Up to 33 kWh of electricity a day, which works out around 1,000 kWh a month, and up to 145 kWh of gas a day.
A one-room office, a market stall unit or a part-time studio can sit under these lines without anyone noticing. Suppliers are supposed to apply the reduced rate automatically, and often they do. Often enough they don’t, and the difference between 20% and 5% on a year of bills is not small change for a business that size. Check the VAT line on a recent bill against your actual usage. If it’s wrong, you can claim the difference back, and our guide to VAT on business electricity covers how.
Charities and businesses where a portion of use is domestic (a flat above the shop on the same meter, say) can also qualify for the reduced rate on that portion. Worth a conversation with your accountant if either applies.
Standing charges matter more when you’re small
Every quote has two prices. The unit rate you pay per kWh, and the standing charge you pay every day the meter exists, trading or not. The less energy you use, the more of your annual bill the standing charge quietly becomes, and a tempting unit rate can hide a daily charge that wipes out the saving for a low-usage site.
An illustrative example. A small salon using 8,000 kWh a year is offered 24p per kWh with a £1.20 daily standing charge, or 26p with a 35p daily charge. The first quote looks better by 2p. Run the year and the first comes to about £2,360, the second about £2,210. The dearer-looking unit rate saves roughly £150 because the standing charge does less damage at low usage.
Always compare the estimated annual cost, never the headline rate. It’s the single habit that protects small accounts.
Getting quotes without giving up your afternoon (or your phone number to the wrong people)
You need three things to get an accurate quote. A recent bill, your annual consumption in kWh, and your contract end date. All three are on the bill itself, and our bill guide shows where. With those in hand, a quote is a price. Without them, it’s a guess that gets corrected later.
Be deliberate about where you enter your details. Some lead-generation sites sell enquiries on, and the cold calls that follow are the single most common complaint small business owners have about this market. Use a named company you can hold to account, ask how much of the market they quote from, and ask how they’re paid. Anyone reasonable answers both in writing. We publish ours on how we make our money, and there’s a fuller walkthrough in our guide to comparing business energy quotes.
What actually moves the price for a small account
Small accounts have less negotiating leverage than a factory, but the price still isn’t fixed by fate. Contract length shifts it, with longer terms usually buying certainty rather than the sharpest rate. Paying by direct debit is often priced better than paying on receipt of invoice. Your business credit record feeds the rate too, and a supplier that doesn’t like what it sees may ask for a deposit or simply quote high. Timing matters most of all, because wholesale prices move daily and a renewal agreed in a calm market week beats one signed in a spike. Our guide on when to renew covers how far ahead you can lock a price.
The thing that moves the price most, though, is simply not letting the contract lapse. Out-of-contract rates sit far above negotiated ones, and every month spent on them undoes the savings of a well-timed switch.
Shared buildings and landlord-controlled supplies
Plenty of small businesses don’t control their own meter. In serviced offices, indoor markets and some leased units, the landlord holds the supply contract and recharges you, either through the service charge or an itemised bill. In that setup you can’t switch supplier yourself, but you can ask how the recharge is calculated, whether it’s based on a submeter or a floor-area split, and what rate you’re being recharged at. Landlords recharging electricity are generally expected to pass it on at cost rather than with a margin, so the numbers are a fair thing to ask about.
If you have your own meter and your own supply, the contract is yours to arrange even in a shared building. Check which situation you’re in before you spend any time comparing, because everything else in this guide rests on the answer.
Grants and government support, honestly
Search results are full of energy support schemes that no longer exist, so here’s the current picture as of mid-2026. The universal bill support schemes from the 2022 to 2024 energy crisis have closed. The government’s newer support, the British Industrial Competitiveness Scheme, cuts electricity costs for energy-intensive manufacturers from 2027 and won’t reach a typical shop or office.
What’s realistically available to a small business now is narrower but real. Reduced VAT and CCL relief at low usage, as covered above. Local and regional energy-efficiency grants, which come and go by area and are worth checking through your local authority and Growth Hub. Some suppliers run hardship funds and payment plans for struggling business customers, and asking for one is a phone call, not an application process. And efficiency itself, unglamorous as it is, remains the one saving nobody can withdraw. If a scheme or grant matters to your plans, check it on gov.uk directly rather than relying on an article, including this one, because this corner of policy changes quickly.
If something goes wrong
Complain to the supplier first, in writing, and keep it factual. If eight weeks pass without resolution, or you reach deadlock sooner, small businesses now have somewhere independent to go. Since 19 December 2024, the Energy Ombudsman accepts complaints from businesses with fewer than 50 employees (or meeting turnover or consumption tests), and it can make awards of up to £20,000. It’s free, and suppliers are bound by the outcome.
For disputes about how a broker or comparison site handled your contract, micro businesses have a dedicated free ADR route as well. The days of a small firm having no realistic comeback in this market are genuinely behind us, which is worth knowing before a dispute rather than during one.
Frequently asked questions
What is the best energy supplier for a small business?
There’s no single best supplier, because business energy is priced per meter, per business, per day. The supplier that quotes well for a café in Leeds may quote poorly for an office in Bristol. Judge each quote on its estimated annual cost, the contract terms and the supplier’s service record, and compare two or three gathered on the same day.
Can a small business use a domestic energy tariff?
Not at business premises. If you work from home, though, your domestic tariff usually stays put, and if more than a small share of your energy is genuinely business use it’s worth taking advice on how it’s treated for tax.
What is a micro business for energy purposes?
You’re a micro business if you meet any one of these. Fewer than 10 employees and turnover or balance sheet up to £2 million, or electricity use up to 100,000 kWh a year, or gas use up to 293,000 kWh a year. It brings extra protections around contract terms, renewal information and dispute resolution.
Do small businesses pay 5% or 20% VAT on energy?
Most pay 20%, but if your average use is at or below 33 kWh of electricity a day or 145 kWh of gas a day, the 5% rate applies and the Climate Change Levy falls away. Your supplier should apply it automatically. Check your bill, because it gets missed, and you can reclaim the difference if it has been.
Do small businesses pay more for energy than big ones?
Per unit, usually somewhat more, since large consumers buy at scale and can negotiate harder. The bigger gap in practice is between small businesses on negotiated contracts and those left on deemed or out-of-contract rates, so staying on a negotiated contract tends to matter far more than the size of the business.
Is there government help with energy bills for small businesses?
Not in the form of a universal discount scheme at the moment. The crisis-era schemes have closed, and the newer industrial support targets energy-intensive manufacturers. What remains for typical small firms is reduced VAT at low usage, local efficiency grants where available, and supplier hardship arrangements. Check gov.uk for the current position before making plans around it.
How long does it take a small business to switch energy supplier?
The switch itself should take around five working days under the faster switching rules, with no interruption to supply. The whole process, from gathering quotes to go-live, is realistically a week or two, and most of that is deciding.
Can a small business take a complaint to the Energy Ombudsman?
Yes, since December 2024. Businesses with fewer than 50 employees, or meeting the turnover or consumption tests, can escalate a complaint once the supplier has had eight weeks or issued a deadlock letter. Awards can reach £20,000 and the service is free.
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