Best BT Broadband Deals UK 2026: Full Fibre Prices & New Customer Offers

Last updated: August 2026 — prices and availability verified before publication.

If you’re hunting for the best BT broadband deals right now, you’re in the right place. BT has overhauled its pricing structure in 2026 with a stepped-pricing model — so the price you pay in month one is not the price you pay in month 24. That’s something most deal comparison sites gloss over, and it matters a lot when you’re working out your actual monthly spend. This guide cuts through all of that, shows you exactly what each BT package costs over 24 months, and tells you which one is worth your money.

We’ve also tackled the new-vs-existing-customer gap, which is bigger than BT would like you to notice, and explained BT’s annual in-contract price rise so there are no nasty surprises mid-contract. Whether you’re switching for the first time or renegotiating at renewal, this article covers everything you need to make the right call. Prices below are verified as of August 2026 — always click through to confirm the latest figure before signing up.

BT Broadband Prices August 2026

Package	Avg Speed	Opening Price	24-mo Avg	Reward Card	Best For
Full Fibre 150	145Mbps	~£23.99/mo	~£27.32/mo	~£120	Most households
Full Fibre 300	300Mbps	~£25.99/mo	Check bt.com	~£120	Busy households, 4+ people
Full Fibre 500	500Mbps	~£28.99/mo	Check bt.com	~£140	Power users, home offices
Full Fibre 900	900Mbps	~£31.99/mo	Check bt.com	~£140	Tech enthusiasts, home servers
Fibre Essential (FTTC)	36Mbps	~£24.99/mo	~£24.99/mo	None	Addresses without full fibre

The £120 Reward Card on Full Fibre 150 is a time-limited offer — time-limited promotions that BT refreshes regularly — check bt.com before ordering to confirm the current incentive value and expiry date.

BT Broadband Deals — Quick Verdict

New BT Customers vs Existing Customers: The Full Picture

Existing BT customers are locked out of most new-customer deals — but there are legitimate ways to get a lower price without leaving. New customers get the tiered/stepped pricing you’ve seen above — those attractive opening prices, plus Reward Cards worth £120–£140. Existing customers renewing at the end of their contract get neither. Renewal pricing is higher than new-customer pricing for the same speed tier, and there are no Reward Cards on the table. The gap between what a new customer pays and what a renewing customer is offered for the same package can be £10–20/mo.

That gap compounds over 24 months. If you’re paying £15/mo more than a new customer for the same Full Fibre 150, that’s £360 extra over the contract term — before you even factor in the Reward Card you didn’t receive. This isn’t unique to BT; most big broadband providers work the same way. But BT is one of the providers where the retention team actually has flexibility to match or come close to new-customer pricing if you push for it.

BT’s retention team number is 0800 783 1401. Call them within 30–60 days of your contract end date and tell them you’re comparing alternatives. They have access to deals that don’t appear on the website, and many customers report getting close-to-new-customer rates without having to actually switch. Even if you don’t get a perfect match, you’ll typically do better than the auto-renewal price. Whatever you do, don’t let your contract expire and roll onto a monthly rolling rate without negotiating first — that’s the most expensive outcome. For context on compare all UK broadband providers before that call, so you’ve got genuine alternatives to reference.

BT Broadband Deals for Existing Customers: What You Can Actually Get

BT’s best broadband deals are reserved for new customers — but existing customers are not without options. Here’s a practical guide to what’s available and how to get it, whether you’re mid-contract or approaching your renewal.

Mid-contract options

Inside a 24-month contract, BT won’t reduce your monthly price. What they will do is let you upgrade to a faster speed tier — useful if your household’s usage has grown since you signed up. Log into your BT account online and check the “My BT” section for upgrade options, or call 0800 783 1401 to ask what’s available. BT sometimes lets existing customers move to a higher tier at a modest premium without restarting a fresh 24-month term.

At renewal: how to negotiate a better price

BT sends renewal reminders 30–60 days before your contract ends. The quoted renewal price in that letter is not the best price — it’s the opening offer. Before calling BT, get live quotes from at least two competitors (EE and Virgin Media carry the most weight with BT’s retention team). Then call 0800 783 1401, state that you’re reviewing your options, and ask what they can offer. Existing customers who negotiate often receive:

• Renewal pricing £3–8/mo below the standard renewal rate
• Free speed tier upgrades (for example, moving from Full Fibre 150 to Full Fibre 300 at no extra cost)
• A partial Reward Card — smaller than the new-customer incentive but still valuable
• A 12-month renewal option instead of 24 months, if you want more flexibility

If the first agent quotes the standard renewal price, ask specifically to be transferred to the disconnections or retentions team — they have more pricing authority. Have a real competitor quote to hand: a specific figure from EE or Virgin is far more effective than a vague “I’m thinking of switching.” If you’d like to compare what BT’s rivals are currently charging before making that call, our guide to all UK broadband providers compared covers current prices across every major network.

Switching away and returning for a new-customer deal

If BT cannot match what you’re being offered elsewhere, switching is simpler than most people expect — the One Touch Switching process means you sign up with the new provider and they coordinate the rest. If you later want to return to BT, wait more than 90 days after leaving: BT’s systems typically reclassify you as a new customer after that period, giving you access to the full new-customer deal structure including Reward Cards. For guidance on making the switch, see our how to switch broadband UK guide.

BT’s Annual In-Contract Price Rise Explained

BT applies a fixed £4/mo price rise each March during your contract. This doesn’t kick in at the first March after you join — it applies from the second March in your contract term. Here’s a worked example to make that concrete: sign up in December 2026 at ~£23.99/mo. Your first March (March 2027) you’d step up to ~£27.99/mo under the stepped pricing structure anyway. Then in March 2028, BT’s annual rise adds another ~£4/mo on top of whatever your contracted price is at that point, taking you to ~£31.99/mo.

Is BT’s rise better or worse than competitors? It’s more predictable than CPI-linked or CPI+X% rises used by other providers — where your increase depends on that year’s inflation figure. BT’s fixed £4 is a known quantity you can budget for upfront. When you’re modelling total 24-month cost, add £4/mo from the second March in your contract to get an accurate picture.

BT’s Stay Fast Guarantee — What It Actually Means

BT’s Stay Fast Guarantee is a minimum speed promise that comes with every Full Fibre package. If BT consistently fails to deliver that minimum speed, you have the right to leave the contract penalty-free, or BT will compensate you. Here’s what the guarantee looks like across the full fibre range:

Package	Average Speed	Guaranteed Minimum	If BT Misses the Guarantee
Full Fibre 150	145Mbps	100Mbps	Compensation or exit penalty-free
Full Fibre 300	300Mbps	150Mbps	Compensation or exit penalty-free
Full Fibre 500	500Mbps	250Mbps	Compensation or exit penalty-free
Full Fibre 900	900Mbps	700Mbps	Compensation or exit penalty-free

The guarantee matters because it makes BT’s advertised speeds meaningful rather than aspirational. Most providers quote “up to” speeds that are network-wide averages — your actual speed can vary by time of day. BT’s guarantee gives you a floor. If your line consistently falls below it, contact BT and document the issue. If the problem is on their network, you can claim compensation or exit the contract without a penalty fee.

How BT Compares to Sky, Virgin and Vodafone

Sky uses the same Openreach infrastructure as BT Full Fibre, so speeds are often comparable — the difference comes down to pricing, bundle options and customer service. Sky tends to headline at a lower price but doesn’t offer the same speed guarantee. For a full breakdown, read our BT vs Sky compared article. Virgin Media runs its own cable network with higher peak speeds in some areas, though coverage outside cities can be patchy. Vodafone uses Openreach and is worth a look for no-frills full fibre at a competitive price. To weigh all your options before deciding, our guide lets you compare all UK broadband providers side by side.

BT Broadband and TV Deals: Bundles, Phone and What’s Worth Adding

BT now sells its TV service under the EE brand, though you can still order through bt.com. A BT broadband and TV bundle combines your full fibre internet connection with a TV package and optionally a phone line on a single monthly bill.

EE TV with BT broadband

The TV service bundled with BT Full Fibre uses IPTV — streamed over your broadband connection, no satellite dish required. The interface brings together on-demand content from multiple services, with Netflix, Disney+, Apple TV+ and Prime Video available as bolt-ons. Sport add-ons (EE Sport and Sky Sports) are available at an additional monthly cost (as of August 2026 — verify current TV bundle pricing on bt.com, as it changes independently of broadband pricing). Full Fibre 150 is the minimum recommended speed for a TV bundle — Full Fibre 300 is a better fit if you have 4+ people streaming simultaneously.

Phone line: Digital Voice

BT’s old analogue phone line is being replaced as part of the national PSTN switch-off, due to be complete by January 2027. All new BT broadband customers are now on Digital Voice — a VoIP service that runs over your broadband connection. If you still make landline calls, add Digital Voice from ~£5/mo. If you don’t use a landline, there’s no reason to include it.

Is a BT broadband and TV bundle worth it?

Run the numbers against what you’re currently paying. If you already subscribe to Netflix, a sport package and one or more other services, a BT TV bundle can consolidate your payments and may save money overall. If you’re not currently paying for any streaming services, the bundle adds monthly cost for content you might not use. The strongest argument for bundling is the single bill and the convenience of one contract — useful if you want to add sport without signing a separate long-term deal elsewhere.

For a detailed comparison of which provider delivers the best broadband speed and reliability for streaming, see our best broadband for streaming UK guide, which covers BT alongside Virgin Media, EE and Sky.

Which BT Package Is Right for You?

For a 1–2 person household

Full Fibre 150 is almost certainly all you need. At 145Mbps average, it handles simultaneous 4K streaming, video calls and general browsing without any issues. The opening price makes it the most cost-effective entry point in BT’s range. If one of you works from home occasionally, the Stay Fast Guarantee of 100Mbps means you won’t be caught out during peak hours.

For a family of 4 or more

Full Fibre 300 is the one. With 300Mbps shared across multiple devices, everyone can be doing something data-heavy at once without anyone noticing. The opening price is only slightly higher than Full Fibre 150 and the peace of mind is worth it. If you’re a particularly tech-heavy household — multiple 4K TVs, gaming consoles, smart home devices — you might consider Full Fibre 500, but most families will be genuinely comfortable at 300Mbps.

For a home office or serious gamer

Full Fibre 500 is the recommended starting point. If your work involves regular large uploads or downloads, video production, or software development pushing large files to cloud repositories, 500Mbps removes bandwidth from the equation completely. Competitive gamers benefit less from raw speed than from low latency — and BT’s full fibre network delivers good latency figures — but higher speeds do help when you’re downloading large game updates in the background while gaming on another device.

If you’re in an area without full fibre

First, double-check on bt.com — full fibre coverage has expanded significantly and your area may have been connected since you last looked. If full fibre genuinely isn’t available at your address, Fibre Essential gives you 36Mbps on BT’s legacy FTTC network. Given the pricing paradox — it costs more per month than Full Fibre 150 — it’s worth checking whether another provider has already reached your postcode with full fibre before defaulting to it.

How to Switch to BT — Step by Step

Switching broadband is simpler than most people expect. Here’s the process from start to finish:

1. Check availability: Go to bt.com and enter your postcode to see which packages are available at your address. Full fibre (FTTP) availability varies by street, not just by town.
2. Choose your package: Pick the speed tier that fits your household. If you’re unsure, use the table above or our speed guide for guidance. Note the full stepped pricing schedule before confirming.
3. Place your order: Complete the sign-up online. You’ll choose a start date — usually 2–3 weeks from the order date. If you have an existing provider, do not cancel them yet.
4. Keep your current broadband live: Leave your existing broadband active until your BT switch date. BT will coordinate the switch using the One Touch Switching (OTS) process — you don’t need to manage two separate cancellations in most cases.
5. Receive your BT Smart Hub: Your router arrives by post a few days before your switch date. Set it up in advance so you’re ready to plug in on the day.
6. Switch day: Your BT service activates on the agreed date. Full fibre switches are usually automatic, though some addresses may require an engineer visit (BT will tell you if this applies when you order). Once active, your old service cancels automatically via OTS.

Frequently Asked Questions About BT Broadband Deals

How much is BT broadband per month?

BT broadband prices start at ~£23.99/mo for Full Fibre 150 on a 24-month contract (opening price as of August 2026). BT uses stepped pricing — the monthly cost increases at set points through the 24-month term, so the 24-month average for Full Fibre 150 works out at approximately ~£27.32/mo. Higher tiers start from ~£25.99/mo (FF300), ~£28.99/mo (FF500) and ~£31.99/mo (FF900). All prices should be verified on bt.com at the time of ordering, as BT updates its pricing regularly.

What is the cheapest BT broadband deal?

The cheapest BT broadband deal for new customers right now is Full Fibre 150 at ~£23.99/mo opening price on a 24-month contract. This gives you 145Mbps average speeds with a Stay Fast Guarantee of 100Mbps minimum, plus a Reward Card incentive (value varies — check bt.com). If you’re in an area without full fibre, Fibre Essential is available at approximately ~£24.99/mo (broadband only; phone line is an additional ~£5/mo), but it’s significantly slower at 36Mbps and costs more — so always check full fibre availability first.

Can existing BT customers get new customer deals?

Not automatically. New customer deals — including stepped pricing and Reward Cards — are only available to households joining BT for the first time (or who have been off BT for a qualifying period). However, existing customers approaching the end of their contract can call BT’s retention team on 0800 783 1401. The retention team has access to deals not advertised publicly and can often match or get close to new-customer pricing. Always call before auto-renewing — the difference can be £10–20/mo.

How long is a BT broadband contract?

All BT broadband packages are on 24-month contracts. There’s no standard 12-month option in the main BT range. Monthly rolling contracts are available but typically cost significantly more per month than the 24-month deals. If you end the contract early, BT will charge an early termination fee based on the remaining months.

What is BT’s Stay Fast Guarantee?

BT’s Stay Fast Guarantee is a minimum speed promise that applies to all BT Full Fibre packages. It sets a floor below which BT guarantees your speed won’t consistently fall — for example, 100Mbps minimum on Full Fibre 150, 150Mbps on Full Fibre 300, 250Mbps on Full Fibre 500, and 700Mbps on Full Fibre 900. If BT consistently fails to deliver the guaranteed minimum, you can request compensation or leave the contract without paying an early termination fee.

Does BT broadband include a router?

Yes. Every BT broadband package includes the BT Smart Hub router at no extra cost. The Smart Hub is a capable dual-band router that handles most homes well. If you need whole-home Wi-Fi coverage — for larger properties or tricky layouts — BT offers Complete Wi-Fi mesh nodes as an optional paid add-on. The price of the Complete Wi-Fi add-on is not fixed, so check the current cost on bt.com when ordering.

How much is BT Full Fibre broadband per month?

BT Full Fibre 150 starts at ~£23.99/mo opening price on a 24-month contract (as of August 2026 — verify on bt.com before ordering). BT uses stepped pricing, so the monthly cost increases at set points through the term. The 24-month average for Full Fibre 150 works out at around ~£27.32/mo. Full Fibre 300 opens at ~£25.99/mo, Full Fibre 500 at ~£28.99/mo, and Full Fibre 900 at ~£31.99/mo. BT’s annual £4/mo in-contract rise applies from the second March of your contract — factor this in when calculating your true 24-month cost.

Can I get a BT broadband deal as an existing customer?

BT’s advertised deals target new customers, but existing customers approaching their contract end date can access unpublished renewal offers by calling 0800 783 1401. BT’s retention team can offer discounted renewal pricing, free speed tier upgrades, partial Reward Cards and sometimes a 12-month renewal option instead of the standard 24 months. The key is to have live competitor quotes ready before you call — a specific EE or Virgin Media price carries more weight than a vague indication you might switch. Mid-contract, your options are limited: BT won’t reduce your monthly price, but speed upgrades may be available via your online account.

What’s included in BT Full Fibre packages?

Every BT Full Fibre package includes a BT Smart Hub router (posted before your switch date), the Stay Fast Guarantee (a contractual minimum speed: 100Mbps on FF150, 150Mbps on FF300, 250Mbps on FF500, 700Mbps on FF900), and a Reward Card incentive (~£120 on FF150/300 and ~£140 on FF500/900 as of August 2026 — verify on bt.com, as values and deadlines change). A 24-month contract is standard. Phone line (Digital Voice, from ~£5/mo), TV packages and Complete Wi-Fi mesh nodes are all optional paid add-ons — none are included by default.

Is BT broadband worth it?

BT broadband is worth it if reliability and a real speed guarantee matter to you. The Stay Fast Guarantee is a contractual minimum — not just a marketing claim — and BT’s full fibre (FTTP) network delivers consistent speeds that don’t dip during peak hours the way older copper-dependent products can. The trade-off is cost: BT’s stepped pricing and annual in-contract rise make it pricier than some rivals on a 24-month average. For households working from home or with four or more simultaneous users, BT Full Fibre 150 or 300 is worth paying a little more for. If budget is the priority, compare EE broadband and TalkTalk at your postcode before deciding.

How do I get the best BT broadband deal?

To get the best BT broadband deal: first, check bt.com directly for live pricing and current Reward Card offers (these change regularly and this article’s figures may not reflect the latest promotion). Second, use a comparison site to see how BT stacks up against EE, Virgin Media and TalkTalk at your postcode — availability and pricing vary by address. Third, if you’re an existing BT customer, call 0800 783 1401 with a competitor quote and ask what the retention team can offer. Fourth, time your sign-up around BT’s stronger promotional windows — January, September and the Black Friday period tend to feature better Reward Card incentives. Click the link below to see BT’s current live deal.

Disclosure: TheTechVector earns a commission if you sign up via the links on this page. This does not affect the price you pay. Our editorial recommendations are made independently — we are not paid to rank any provider first. Prices shown are as of August 2026 and may change. Always verify the current price on the provider’s website before signing up.