BT is offering Full Fibre 150 at £23.99 a month, and if you have to pay a fee to leave your current provider, BT will put up to £300 towards it as credit on your BT bill. That makes it a good fit if you are stuck mid-contract with another broadband company and the exit fee has been the only thing stopping you from moving. BT's offer page says the price rises to £27.99 in March 2027 and £31.99 in March 2028, so over a 24-month contract starting in November 2026 you would pay about £679.76 before any credit. Prices, terms and any price changes during the contract should be checked at checkout, because the basket price for your address is the one you will pay.
Below, SwitchSquid explains who this deal suits, how the leaving-fee credit works in practice, what the plan costs across two years, and the questions worth asking before you order.
The offer at a glance
What you get | Details |
|---|---|
Plan | BT Full Fibre 150 |
Monthly price | £23.99 a month |
Leaving-fee help | Up to £300 towards fees charged by your old provider |
How the help is paid | As credit on your BT bill |
Contract | 24 months (confirm the term in your basket) |
Availability | Depends on your address. Enter your postcode on the BT page to check |
The leaving-fee credit is the part that sets this offer apart. Plenty of broadband deals look cheaper on a monthly basis, but very few help with the cost of getting out of the contract you already have. If your old provider would charge you £150, £200 or more to leave early, that credit can make switching now cost much the same as waiting until your current contract runs out.
SwitchSquid may earn a commission if you buy through the links on this page, at no extra cost to you. It never changes which deals we feature or how we rank them.
Who this deal suits
Full Fibre 150 is a middle-of-the-road speed, and that is a compliment. It is quick enough for most homes without paying for headroom you will rarely use. This offer is likely to suit you if:
You are partway through a contract elsewhere and your provider has quoted an early exit fee. The credit is designed for exactly this situation.
Your current broadband is slow or unreliable, for example an older copper or part-fibre line, and you would like a full fibre connection without waiting another year.
You live in a household of one to three people who stream in HD, join video calls, browse, and download the odd game or app update.
You work from home a few days a week and want a steady connection for calls and cloud files.
You prefer a large, well-known provider and like the idea of one bill from a familiar name.
It may be less of a fit if your home has many heavy users at once, such as several people gaming online and streaming in 4K at the same time, or if you regularly upload very large files. In that case a faster BT tier, or another full fibre provider, might serve you better. It is also worth a second look if you are already out of contract, because then you have no leaving fee to claim and the credit does not add anything for you.
How the leaving-fee credit works
When you leave a broadband provider before your minimum term is over, they normally charge an early termination fee. This is often worked out from the months you have left, so the closer you are to the start of your contract, the bigger the bill. Many people simply wait it out, even when they are unhappy with their service, because the fee feels like money thrown away.
BT's offer is designed to remove that barrier. According to the offer page, BT will contribute up to £300 towards the fees your old provider charges you for leaving, and it pays this as credit on your BT bill rather than as cash or a card. In plain terms:
You pay your old provider's fee first. Your previous company bills you as normal when you leave.
BT then credits your BT account, up to £300, which reduces what you owe BT on your bills.
The credit is capped at the fee you actually paid and at £300, whichever is lower. If your exit fee was £120, you would expect up to £120 back, not £300.
There will be terms to follow. Offers like this usually ask for proof of the fee, such as your final bill, and set a time limit for claiming. Please read the terms on the BT page so you know exactly what is needed and by when.
Because the money arrives as bill credit, it smooths out your BT payments rather than going back into your pocket straight away. If you prefer to think in totals, the table further down shows how the credit balances out different exit fees across the full contract.
Before you order: get your exit fee in writing
The simplest way to know whether this deal works for you is to ask your current provider for the exact cost of leaving today. Most will tell you over web chat or in your online account. Note the figure, the date, and whether there are any other charges such as an unreturned router fee. Not every type of charge is necessarily covered, so it is worth checking the BT terms against your quote before you commit.
What BT Full Fibre 150 costs over 24 months
Here is the plan across a 24-month contract starting in November 2026, using the prices on BT's offer page: £23.99 a month to March 2027, £27.99 from March 2027 and £31.99 from March 2028. They do not include any add-ons, so please check the terms and the final basket at checkout.
Period | Months | Running total (with BT's March rises) |
|---|---|---|
First 6 months | 6 | £143.94 |
First year | 12 | £315.88 |
18 months | 18 | £487.82 |
Full contract | 24 | £679.76 |
How the leaving-fee credit changes the picture
The credit does not make BT itself cheaper. It cancels out some or all of the cost of leaving your old provider. So the fairest way to judge the deal is to add your exit fee to the BT cost and then take the credit away. The examples below use the £679.76 BT total from the table above.
Your old provider's exit fee | BT credit (up to £300) | Total cost of switching plus 24 months of BT |
|---|---|---|
£0 (already out of contract) | £0 | £679.76 |
£100 | £100 | £679.76 |
£200 | £200 | £679.76 |
£300 | £300 | £679.76 |
£400 | £300 | £779.76 |
The pattern is easy to read. As long as your exit fee is £300 or less, and the credit is paid in full, switching early costs the same as if you had no fee at all. Above £300, you would cover the difference yourself. In that example, £100 on top. Even then, if your current service is poor, many people decide that a better connection is worth it.
Comparing Full Fibre 150 with other BT speeds
BT sells several Full Fibre speeds, and prices for each one can vary by address and change during the month. We have not listed figures for the other tiers here because the page this deal links to is built around Full Fibre 150. If you are curious about a faster or slower option, please check bt.com for your address and compare the basket prices side by side.
As a rough guide to speed, without prices:
Slower plans can suit one or two people who mainly browse, email and stream on one screen.
Full Fibre 150 is comfortable for most small and medium households, with room for HD streaming, video calls and regular downloads at the same time.
Faster plans are aimed at busy homes with lots of devices, frequent 4K streaming, online gaming and large uploads.
Real-world speed also depends on where your router sits, how many walls the signal passes through and whether key devices are wired in. A well-placed router on a 150 line often feels quicker than a poorly placed one on a faster plan.
Things to check before you order
Availability: full fibre is still being rolled out, and availability can differ from one house to the next on the same street. The BT page checks your exact address.
Price and price changes: confirm the monthly price in your basket and read BT's terms on how and when prices can change during the contract.
Contract length: make sure the term shown matches what you expect, and diarise its end date so you can review your options in good time.
Leaving-fee claim: read what evidence BT needs, how long you have to claim, and which charges count.
Installation: a new full fibre connection often needs an engineer visit. Pick a date when someone can be at home.
Your old service: keep it running until your BT line is live, so you are never left without internet.
How to switch to BT Full Fibre 150
Ask your current provider how much it costs to leave, and save that quote.
Open the BT offer page and enter your postcode to check Full Fibre is available at your address.
Confirm Full Fibre 150 at £23.99 a month is showing in your basket, along with the leaving-fee offer.
Choose your installation date and complete the order.
Once your BT line is working, end your old contract and keep the final bill.
Claim the leaving-fee credit using the steps in BT's terms, and look out for it on your BT bill.
Our view
If you have been putting off switching because of an exit fee, this is one of the more helpful BT offers we have seen this autumn. Full Fibre 150 at £23.99 a month is a sensible speed for most homes, and up to £300 towards leaving fees removes much of the cost of moving now rather than later. The key is to know your exit fee before you order and to keep your final bill for the claim. If you are already out of contract, compare a few full fibre options for your postcode first, because the credit will not apply to you.
Details are correct as of 19 October 2026. Prices, credit amounts and eligibility can change, so please check the BT page before ordering.
Frequently asked questions
How much is BT Full Fibre 150 on this offer?
The BT offer page shows Full Fibre 150 at £23.99 a month. Over a 24-month contract starting in November 2026 that is about £679.76, including BT's March 2027 and March 2028 rises. Please check the price in your basket and BT's terms on price changes before you order.
What does 'up to £300 towards leaving fees' mean?
If your current broadband provider charges you a fee for leaving before your contract is over, BT will contribute up to £300 towards that fee. The amount is capped at what you actually paid, up to £300.
Is the leaving-fee money paid as cash?
No. BT applies it as credit on your BT bill, which reduces what you owe BT rather than being paid to you directly.
How do I claim the leaving-fee credit?
Follow the steps in BT's offer terms. Offers like this usually ask for proof of the fee, such as the final bill from your old provider, within a set time. Keep that bill safe once you switch.
Is this deal worth it if I am out of contract?
You can still take Full Fibre 150 at £23.99 a month, but the leaving-fee credit will not add anything because you have no exit fee. It is worth comparing other full fibre deals for your postcode.
Is Full Fibre 150 fast enough for my home?
For most households of one to three people it is comfortable for HD streaming, video calls, home working and downloads. Very busy homes with lots of 4K streaming and gaming may prefer a faster tier. Check bt.com for your address to compare.
Can I get BT Full Fibre at my address?
It depends on where you live. Enter your postcode on the BT page to see whether Full Fibre 150 and the leaving-fee offer are available to you.
