Business Energy Contract End Date 2026: What to Do

Last updated: Thursday 29 October 2026

The most useful energy job for a small business before winter is finding your contract end date and notice period. Miss the notice window and you can be rolled onto expensive extension or out-of-contract rates. Ofgem’s £1,723 typical household dual fuel bill for 1 October to 31 December 2026 does not set business prices. This guide explains how to find your dates, what to gather and when to start comparing quotes for UK small and medium sites.

SwitchSquid may earn a commission from the supplier if you sign a business energy contract through our quote form. It does not change the price you are quoted.

Key renewal facts (checked 1 October 2026)

October is when many fixed terms taken out one or two winters ago approach renewal. Diary the notice date now; pricing conversations are slower when half the market is chasing the same week.

How to find your contract end date

Check the welcome pack PDF, the renewal letter, the online account “contracts” tab, and the broker portal if you used one. The end date and the notice period are different fields — a contract ending 28 February may need notice in January. If paperwork is missing, email the supplier’s business desk with the site address and MPAN/MPRN and ask for the current contract summary in writing.

Multi-site groups should build a one-page register: site, fuel, end date, notice days, broker, and whether half-hourly or non-half-hourly. Do not rely on memory across branches.

Why your end date matters more than a cheap unit rate

Out-of-contract and deemed rates can erase a winter of careful budgeting. A unit rate in an advert rarely includes capacity charges, CCL treatment, broker fees or the shape of your half-hourly profile. Start from dates and usage; price second.

Fit summary

Good for: SMEs whose fixed term ends within the next 3–9 months and who need an orderly October planning pass.
Consider alternatives: if you are already out of contract, treat this as urgent recovery — gather usage and enquire immediately.
Not for: household gas and electricity, which our home energy guides cover.

Important conditions

• Business energy is not covered by the domestic price cap.

• Notice periods and rollover clauses vary by supplier contract.

• Broker Letters of Authority should be time-limited and scoped.

• Half-hourly sites need richer data than a single annual kWh guess.

• Microbusiness rules differ from larger corporate tenders.

• VAT and the Climate Change Levy change the total price. Business energy is normally charged at 20% VAT. Electricity for qualifying use, such as small sites under HMRC’s low-use limits, has 0% VAT in Great Britain from 1 October 2026 to 30 June 2027, then 5% (HMRC Notice 701/19).

A 30-minute renewal checklist

1) Locate end date and notice period; put both in the calendar with a 14-day buffer.
2) Export 12 months of usage (half-hourly where relevant).
3) Note current standing / capacity charges and any pass-through items on the last invoice.
4) Confirm who can sign a Letter of Authority.
5) Start a SwitchSquid business energy quote with your site postcode, fuels and dates.
6) Compare all-in £ for the term — not a lone unit rate.
7) Diary the acceptance window so paperwork does not miss the notice cut-off.

Final decision card

End date inside 90 days → gather data this week and enquire now.
End date 4–9 months out → build the register and obtain indicative pricing before the Christmas break.
Already out of contract → treat as priority; do not wait for a “perfect” tender pack.

Worked examples

Café on a two-year fix ending January: Notice may be due in December. Export usage now; do not wait for the first frost invoice.

Workshop with messy files: Ask the supplier for a contract summary while the meter operator data is pulled. Parallel tracks save a week.

Multi-site charity: Stagger renewals if possible so not every site hits the market in the same fortnight.

Related SwitchSquid business guides

We also have guides to half-hourly meters, out-of-contract rates, ending a contract, letters of authority and individual suppliers. This guide focuses on your end date and renewal window.

What to put in the renewal folder

Keep PDFs of the current contract, the last three invoices, any broker agreement, meter serials, and a photo of the meter cupboard label. When a supplier asks for half-hourly data, you want it in one folder rather than spread across inboxes.

If ownership of the company changed mid-term, confirm the bill-payer legal entity still matches the contract before you sign a renewal — mismatches delay go-live.

How residential October noise distracts SMEs

Headlines about the £1,723 domestic cap are useful for staff households and useless as a business benchmark. Your site may see very different standing charges, availability fees and risk premia. Use domestic news as a calendar reminder that winter planning is due — then price the business meter on business data.

Directors sometimes delay because they hope wholesale charts will “calm down next month.” If your notice window passes first, the market does not matter. Your dates come first.

Notice periods versus end dates — a worked calendar

Suppose a contract ends on 31 January 2027 with 30 days’ notice. The practical decision deadline is early January, not 31 January. Add internal approval time: finance sign-off, board cycle, or a trustee meeting for a charity. October 2026 is not too early to gather data for a January end date — it is often the only calm window before Christmas leave.

If notice is “not less than 90 days”, count backwards carefully and put two reminders in the diary: one for data collection and one for signature.

What a good quote looks like

Ask for all-in estimated £ for the term, not only a unit rate. Clarify which charges are pass-through. Note whether broker commission is embedded. Check green certificates claims against what your policy actually needs. For half-hourly sites, confirm the quote used your real profile rather than a generic shape.

Reject pressure tactics that demand same-day signature without a written summary. Serious suppliers and brokers can usually hold a price for a short, stated validity window.

Microbusiness protections and still doing the basics

Microbusinesses have specific information and switching rules that differ from large corporate tenders. Those protections do not remove the need to know your end date. If a cold caller cannot tell you your current end date and only pushes a unit rate, slow down and check your own paperwork or contact your supplier directly.

Keep a written note of every sales call: date, name, claimed savings, and whether they already hold a Letter of Authority. Revoke stale authorities when a broker relationship ends.

Winter operations while paperwork is in flight

Do not ignore site heating setpoints and LED upgrades while you wait for a renewal PDF — operational efficiency still cuts kWh. But efficiency is not a substitute for missing a notice window. Do both: cut waste on site and lock in your contract dates.

FAQ

How do I find my business energy contract end date?

Check the contract PDF, your renewal letter or your online account. If you cannot find it, ask the supplier’s business team for a written contract summary, quoting your MPAN or MPRN.

Does the £1,723 price cap apply to my business?

No. £1,723 is Ofgem’s typical household dual fuel bill on Direct Debit for 1 October to 31 December 2026. Business sites are priced individually and are not covered by the cap.

What happens if I miss the notice period?

Many contracts roll onto an extension or out-of-contract rates, which can cost more. Put the notice date in your diary with a 14-day buffer so you have time to act.

What documents do I need for a business energy quote?

You need your end date, notice period, site address, fuels, MPAN or MPRN and about 12 months of usage. Half-hourly data helps if your site has a half-hourly meter.

Can I use home energy comparison for a shop or office?

No. Home energy comparison is built for domestic accounts and household tariffs. Use a business energy quote form or go to business suppliers directly.

Should I wait until January to renew?

Only if your notice period allows it. If your notice falls in the autumn, start now, even if the contract end date is in mid-winter.

What is a letter of authority?

It is a document that lets a broker speak to suppliers for you. Keep it time-limited and limited to the fuels you want quoted.

Does SwitchSquid earn money from business energy quotes?

SwitchSquid may earn a commission from the supplier if you sign a contract through our quote form. It does not change the price you are quoted, and you can ask how we are paid before you agree.