British Gas smart meter tariffs and time-of-use options
Understand what a time-of-use tariff is, how smart meters affect your options, and how to check what British Gas (and other suppliers) can offer for your postcode — without guessing rates.
- Clear explanation of time-of-use pricing (and what it isn’t)
- Eligibility checks: meter type, readings, payments, and switching
- Two realistic examples showing when it can help — and when it can backfire
We don’t publish live British Gas rates on this page because prices and product names change. Use your postcode to see what’s actually available for your home.
Fast answer
British Gas smart meter tariffs and time-of-use options usually mean paying different electricity prices at different times, using smart meter data instead of manual readings. The key fact is this: you only benefit if you can shift a meaningful chunk of your usage into the cheaper time windows. Availability and exact hours vary, so check by postcode before you commit.
What you’re really choosing
A pricing structure (flat rate vs time-of-use), not a “smart meter discount”.
Best fit
Homes that can reliably run flexible loads (EV charging, dishwasher, washing machine) at off‑peak times.
Biggest risk
Higher peak prices can outweigh off‑peak savings if most of your usage stays in the evening.
Editor’s caveat: British Gas’ smart/time-of-use tariff availability can change and may depend on your meter setup, payment method and region. We don’t list tariff names or rates here — use a quote to see what’s live for your postcode.
How time-of-use pricing works (plain English)
A time-of-use tariff splits your electricity price into time bands. In cheaper bands, each kWh costs less. In pricier bands (often when lots of people use power), each kWh costs more. Your smart meter records usage automatically, which lets suppliers bill you accurately across those bands.
This is different from:
- A flat-rate tariff
- Same unit rate all day. Easier to predict, but you don’t get cheaper off-peak periods.
- A fixed tariff
- Prices don’t change for the fixed term, but it can still be flat-rate or time-of-use.
- Economy 7 / Economy 10
- Older-style multi-rate metering with set night (and sometimes day) periods. Some smart meter tariffs behave similarly, but the exact hours and rules are supplier-specific.
What you’ll usually need
- A working smart meter setup, with readings reaching the supplier reliably.
- Comfort using (or at least checking) an in-home display or app for usage patterns.
- Flexibility to move some consumption away from the most expensive periods.
If you rent, you can still switch supplier in most cases — but if your tenancy includes bills, you usually can’t. Citizens Advice explains your rights around switching.
A quick reality check before you chase off-peak rates
Time-of-use works best for electricity loads you can schedule. If your biggest usage is cooking, showers (electric), and evening heating on electricity, you may struggle to shift enough kWh. Even with an EV, your charging pattern matters: a commuter who charges little-and-often at 6–9pm can pay more than someone who charges overnight twice a week.
If you’re on prepayment, have restricted meter configurations, or your smart meter isn’t communicating well, your choices can be narrower. That’s why we always recommend checking live options by postcode rather than relying on headlines.
Check what British Gas (and others) can offer for your meter
This page is about British Gas smart meter tariffs and time-of-use options, but your best deal might be elsewhere. Energy prices are postcode-specific and change often. The practical approach is to compare live offers using your details, then decide if time-of-use genuinely fits how you live.
What to have to hand (takes 2 minutes)
- Your postcode and property type (flat, terrace, semi, detached).
- Whether you have gas, electricity, or both.
- Smart meter status: working and sending readings, or “installed but not smart”.
- Rough annual usage or recent bills (helpful, not essential).
If you’re moving home: your current tariff doesn’t usually move with you. Start by comparing at the new address, then set a switch date that avoids paying for two places at once.
Get a quote (whole-of-market)
Two realistic scenarios (with numbers you can sanity-check)
Because we can’t show live British Gas rates here, the examples below use illustrative prices to show the maths. Treat them like a worksheet: swap in the actual peak/off-peak rates you see in your quote.
Scenario A: EV driver who can charge overnight
Assumptions: 3,600 kWh/year electricity. Of that, 1,200 kWh can be moved into an off‑peak window (mostly EV charging). Illustrative rates: flat 26p/kWh; time-of-use peak 30p/kWh, off‑peak 14p/kWh. Standing charges ignored to keep the example readable.
Estimated annual unit-cost comparison: flat = 3,600×26p = £936. Time-of-use = 2,400×30p + 1,200×14p = £888. Difference: about £48/year, before standing charges and any discounts/fees.
Scenario B: Mostly evening use, little flexibility
Assumptions: 2,900 kWh/year. Only 300 kWh can move off‑peak (dishwasher and laundry). Same illustrative rates: flat 26p/kWh; peak 30p/kWh, off‑peak 14p/kWh. Standing charges ignored.
Estimated annual unit-cost comparison: flat = 2,900×26p = £754. Time-of-use = 2,600×30p + 300×14p = £822. Difference: about £68/year more on time-of-use.
Why we ignored standing charges above: most households pay them regardless, but they can differ between tariffs and suppliers. When you compare live options, always check the standing charge alongside unit rates — especially if you’re a low user.
Compare your options: flat vs time-of-use (what to look at)
If you’re deciding between a British Gas smart meter tariff and a time-of-use alternative (with British Gas or another supplier), this is the comparison that actually matters. Focus on what changes your bill: the split between peak and off‑peak, any standing charges, and whether your lifestyle can follow the rules.
| What you’re comparing | Flat-rate tariff | Time-of-use tariff (smart) | Why it matters |
|---|---|---|---|
| Unit rate structure | One price all day | Different prices by time band | Your “shiftable” usage decides the winner. |
| Smart meter dependency | Often optional | Usually required | If your meter isn’t sending data, billing can get messy. |
| Peak-time cost exposure | Moderate and steady | Can be higher at certain times | If you cook, bathe, and heat electrically in peak bands, costs can rise. |
| Budgeting and predictability | Simpler | Needs a routine | Great if you’re consistent; frustrating if your schedule changes week to week. |
| Who it tends to suit | Most households | EV owners, some heat-pump homes, night-shift workers | The more flexible load you have, the more the structure can work for you. |
Quick checklist: time-of-use is more likely to suit you if…
- You can shift at least 15–30% of your electricity into the cheaper window on most weeks.
- You’re happy using timers/smart plugs, or you already run appliances overnight.
- You’ve checked your smart meter is communicating (bills match your real use).
- You’ve compared standing charges, not just the headline off‑peak rate.
It may not be a good fit if…
- Most of your usage is locked into evenings (family routines, electric showers, cooking).
- You’re home all day and use electricity steadily with little you can reschedule.
- You’d worry about running appliances overnight (noise, safety, or lease restrictions).
(No judgement — “simple and predictable” beats “clever but fiddly” for a lot of homes.)
Costs, exclusions and common pitfalls
The biggest mistakes we see aren’t about choosing British Gas vs another supplier. They’re about not checking the fine print of the tariff structure and then using energy in the “wrong” hours. These are the points to watch.
Standing charges still apply
Even if off‑peak unit rates look tempting, the standing charge can make a big difference, especially for smaller flats and low-usage homes. Compare the total estimated annual cost, not just unit rates.
Peak windows can be pricey
Many households use most electricity in the early evening. If your tariff’s most expensive band overlaps with your real life, you can pay more even if you “try your best”. Be honest about routines before switching.
Smart meter data issues
If your smart meter isn’t reliably sending readings, a time-of-use tariff can lead to estimated bills or delayed corrections. If you’ve had “missing readings” emails before, sort that first.
Exit fees and fixed terms
Some fixed tariffs have exit fees. If you’re trialling time-of-use and might want to change again, check the tariff documents before you agree. Your quote should show this clearly.
Prepayment differences
Prepayment customers can have fewer tariff options, and smart PAYG setups vary. If you’re on prepay, compare specifically for your payment type rather than assuming the same smart tariffs are available.
Heating on electricity
If you have storage heaters or other electric heating, you may already be on (or suited to) a multi-rate setup. Don’t switch to a flat tariff without checking how your heating is wired and billed.
If you think your meter setup is unusual (storage heating, multiple registers, or you’ve been told you’re on a restricted meter), it’s worth confirming your meter type before you switch. Ofgem has guidance on smart meters and billing.
FAQs
Do British Gas smart meter tariffs always include time-of-use pricing?
No. A smart meter can be used with a normal flat-rate tariff as well as time-of-use tariffs. “Smart” describes how readings are captured and billed, not the pricing structure. Availability changes, so check live quotes for your postcode.
Can I get a time-of-use tariff without a smart meter?
Often, no — many time-of-use tariffs rely on half-hourly (or similar) smart meter readings to bill you correctly. Some older multi-rate setups exist, but eligibility depends on your meter and supplier. If you don’t have a working smart meter, compare options first and confirm requirements before switching.
Will I definitely save money on a time-of-use tariff?
No. Savings depend on your actual usage pattern and the gap between peak and off‑peak rates (plus standing charges). If you can’t shift much electricity into cheaper hours, you can pay more. Use your quote to compare estimated annual costs, then pressure-test it against your routine.
Does a smart meter change my standing charge?
Not by itself. Standing charges are set by the tariff and can vary by supplier, region and payment method. A smart meter can broaden the types of tariff you’re eligible for, but it doesn’t automatically reduce standing charges.
What if my smart meter isn’t working properly or isn’t sending readings?
If your meter isn’t communicating, you can end up with estimated bills and later corrections — which is especially awkward on time-of-use. Before switching, check recent bills show actual (not estimated) smart readings, and contact your supplier if readings are missing. Citizens Advice has support on billing issues.
Citizens Advice help if you have problems with your energy bill
Can I switch away from British Gas if I have a smart meter?
Yes, in most cases. Smart meters are designed to keep working when you switch, though sometimes functionality can be limited temporarily depending on the meter and system setup. If you’re on a fixed tariff, check for exit fees before you switch.
Do I have to share half-hourly smart meter data to get time-of-use prices?
Many time-of-use tariffs need more detailed consumption data to bill you accurately by time band. Data permissions and billing arrangements vary by supplier and tariff. If you’re concerned, check the tariff terms and your data-sharing settings before agreeing.
I’m in Scotland/Wales/Northern England — will the same smart tariffs be available?
Not always. Energy tariffs can vary by region, and availability can differ by supplier and meter type. The safest way to check is to run a quote with your postcode and payment method so you’re comparing like-for-like options.
Trust, methodology and sources
Page accountability
- Written by:
- EnergyPlus Editorial Team
- Reviewed by:
- Energy Specialist
- Last updated:
- September 2026
How we assess smart meter and time-of-use options
We wrote this page to help you make a decision even when tariff names and rates change (which they do). Our approach is simple: explain how time-of-use pricing works, show where people get caught out, and give you a repeatable way to compare offers using your own data.
Assumptions used in our examples:
- Illustrative unit rates are used to demonstrate the calculation only.
- Standing charges, discounts and fees are excluded from the worked examples to keep them readable, but should be included in your final decision.
- “Shiftable usage” depends on your household routine and appliances; we suggest reviewing your last 2–4 weeks of usage before committing.
Limitations: we don’t publish live British Gas product names, time windows or unit rates on this page because that would go out of date quickly and risks being misleading. Your quote results are the source of truth for what’s available in your postcode today.
Sources we rely on
- Ofgem consumer energy advice (smart meters, switching, billing basics)
- Citizens Advice energy guidance (rights, complaints, billing problems)
- GOV.UK smart meters overview (what smart meters are and how they work)
See live smart meter and time-of-use tariffs for your postcode
Get a whole-of-market view, then sanity-check it against your routine. If time-of-use is right for you, you’ll see it in the numbers — not just the marketing.
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