Cheapest full fibre broadband UK 2026: rank the first year, not the advert

Last updated: Thursday 27 August 2026 (Europe/London).
Next update: when YouFibre’s 1–31 August offer window closes, or when the next round of autumn full-fibre pricing lands. Until then, treat every monthly figure as a 27 August snapshot and re-check the contract summary at your postcode.
By: Switch Editorial Team, Switch Squid Ltd

I am Switch. I compare broadband deals for a living, and I am not going to tell you the cheapest full fibre broadband in the UK is £16 a month.

That number is in a Point Topic survey of Q2 2026 list prices. Gigaclear was the cheapest entry package in that dataset. I opened Gigaclear’s own site this morning, 27 August 2026. The public headline is Full Fibre from only £19/m, 18 months, £30 activation on the 300 Mbps tier, and the small print says prices may change during the contract. After the term, the current list price on that 300 Mbps package is £51 a month. Q2 research is not a shopping cart.

There is also no national “from £24” that you can take to the bank. Full fibre is a postcode product. Ofcom’s Connected Nations Spring 2026 update (January 2026 data) puts it at 82% of UK homes — 24.9 million of 30.5 million. Take-up where it is available is 47%. If your street was upgraded in the last two years, there is a decent chance you are still paying copper-era money for a cabinet that is no longer the bottleneck.

This page is the shopping version of that fact. Cheapest full fibre broadband UK 2026, ranked by what the first year actually costs: monthly price, the April (or 31 March) rise already written into the contract, setup, and whether the router is free. Not commission. Not the teaser on the tile.

Compare broadband deals at your postcode.

A note on that hub, because I will not pretend otherwise: as of this morning it is still labelled “Some of our best broadband deals - March 2026”. Those cards are five months old. I have not used them. The figures below were re-fetched today from provider sites and from uSwitch’s August 2026 fibre pages.

There is no national cheapest

People google this phrase as if the answer lives in one cell of a spreadsheet. It does not.

Community Fibre will undercut almost everyone in London and parts of the South East, on its own 1.4 million-home network. YouFibre will look cheap where Netomnia passes the door, and the August offer I am using expires on 31 August 2026. Gigaclear is a rural builder. Vodafone and Plusnet and BT ride Openreach (and CityFibre, in Vodafone’s case), so they show up at far more addresses — and they put a pounds-and-pence rise in the contract.

If a comparison site leads with Virgin Media Gig1 at £23.99 a month, that is usually cable, not full fibre. uSwitch’s own fibre page this morning, sorted by “Uswitch rated”, put that Gig1 card above several actual FTTP deals. Fast. Not FTTP. I have left it out of the ranking.

I have also left out social tariffs. If someone in the home is on Universal Credit, Pension Credit, ESA, JSA, Income Support or (at some providers) PIP, start here instead: broadband social tariff deals. Those packages are usually cheaper than anything in the table below, they generally do not rise in April, and they are a different product.

How I count a year

Signed in late August 2026. First twelve months.

For a deal that discloses a rise on 31 March (BT Group: BT, EE, Plusnet) or 1 April (Vodafone, Community Fibre’s current 24-month terms, Hyperoptic):

• eight months at the intro rate (August 2026 through March 2027)

• four months at the risen rate (April through July 2027)

Add setup or activation. Add a router charge if the provider publishes one. Do not subtract a gift card unless I could confirm it is still live on 27 August and I can put a date on it. Plusnet’s Full Fibre Reward Cards were advertised as ending 27 August 2026. I have not taken them off the first-year total. If they are still in the basket when you order, that is a bonus, not a price I will underwrite.

Early-exit from a new deal in year one is usually remaining months × the monthly price then in force. I am ranking the cost of staying for twelve months. If you are leaving an existing contract to get here, add your remaining exit fee on top, then subtract any switching credit the new provider will actually pay. Vodafone’s own site today offers up to £200 towards leaving fees; Sky offers up to £200; Virgin Media’s uSwitch cards today show up to £300. None of those is a promise that it covers your specific bill.

I rank by that first-year cash, not by who pays Switch the most.

Deals I could verify this morning

Prices below are Thursday 27 August 2026. New customers. Broadband-only unless said otherwise. None of them is available at every UK address. Where a provider only publishes a “from” price, I have used the legal small print that came with it, and I have not invented a cheaper unnamed tier.

Rank the first year, not the £24 advert.

Worked first-year sums, so you can see I have not rounded the story:

• Community Fibre 35 Mbps: £11.25 × 12 = £135. Flash sale to 16 September 2026. Their own FAQ still quotes £12.50 as the regular start; I have used the live card. That card did not print an April 2027 pounds figure, unlike the 75 Mbps and 150 Mbps 24-month cards. If a £3 April rise is later applied to the 12-month Essential, first year becomes 8 × £11.25 + 4 × £14.25 = £147. I have ranked what the card actually showed this morning.

• Community Fibre 150 Mbps 24-month: 8 × £17.10 = £136.80, 4 × £20.10 = £80.40, setup £0. Total £217.20, shown as £217.

• YouFibre You 200: £20 × 12 = £240. Offer terms 1–31 August 2026: standard installation and activation included, Wi-Fi 7 router included, price fixed for the 24-month term. After that, published list £34.99.

• Gigaclear 300: £19 × 12 = £228, plus £30 activation = £258. 240 Mbps minimum download. eero 7 included. The 600 Mbps tier is £24 with £0 activation; first year £288, still before any in-contract change they choose to make.

• YouFibre You 1000: £25 × 12 = £300. Average speed on the offer page is 900 Mbps, not a true 1 Gbps over Wi-Fi.

• Vodafone, using the provider’s own “from £24” plus the disclosed rise: 8 × £24 = £192, 4 × £27.50 = £110, setup £0. Total £302. uSwitch this morning also listed Full Fibre 910 at £23 a month until April 2027 (8 × £23 + 4 × £26.50 = £290). That is a comparison-site card, not Vodafone’s homepage floor. If it appears at your postcode, it beats the £24 row. I will not pretend it is on every street.

• Plusnet: 8 × £22.99 = £183.92, 4 × £26.99 = £107.96, plus £20 activation = £311.88, shown as £312. Month 1 on their homepage is £42.99 because the activation lands up front.

• BT Full Fibre 150: 8 × £23.99 = £191.92, 4 × £27.99 = £111.96, plus £30 setup = £333.88, shown as £334. BT Full Fibre 300 on the same uSwitch page is £25.99 with the same £30 setup; first year £358.

YouFibre You 200 at £240 with a lock is cheaper over twelve months than Vodafone’s £24 teaser once April is in the sum. Community Fibre 150 at £217 is cheaper still, if you live where they have built. That is the whole point of ranking cash, not tiles.

What I will not rank

Hyperoptic “500Mb from £17/m”. Their own homepage, 27 August 2026: £17 a month, £4 increase every April, 24-month commitment, prices vary by location. If you actually get £17, first year is 8 × £17 + 4 × £21 = £220. I have not put that in the table, because “from” plus “vary by location” is how comparison sites invent a national cheapest. Check the quote for your building.

Virgin Media Gig1 at £23.99. uSwitch fibre results, this morning. Until April 2027, then +£4. No setup. It is cable (or Virgin’s hybrid), not Openreach/altnet FTTP. First year if you treat it as a like-for-like would be 8 × £23.99 + 4 × £27.99 = £303.88. I still will not call it cheapest full fibre.

Sky Full Fibre Gigafast at £25. uSwitch, 27 August. No setup. £5 advance fee, credited. “Price may rise during contract.” Sky’s last broadband rise was £3 from 1 April 2026. I do not have a disclosed 2027 pounds figure on that card, so I will not invent one. Twelve months at £25 is £300 only if the price holds.

TalkTalk and NOW. TalkTalk’s shop blocked the fetch this morning. I am not lifting a “from £24” off a June blog.

The Switch broadband hub’s March 2026 cards. BT Full Fibre 900 at £59.99 with £31.99 setup is not a 27 August price. Neither is the hub’s “budget full fibre from around £18” / “from around £24” copy. Do not shop from it until those tiles move.

Point Topic’s Gigaclear £16. Q2 2026 research, reported 13 August. Not on Gigaclear’s site today.

MoneySavingExpert’s £13.42 “equivalent monthly”. I could not re-fetch the FTTP checker on 27 August (Cloudflare). Dropped.

MoneySuperMarket July Community Fibre cards (one 150 Mbps line at £15, average monthly £13.34, offer ended 23 July 2026). Stale.

Confused.com “Community Fibre from £21”. Stale against Community Fibre’s own 27 August sale.

uSwitch’s May 2026 Mb-per-£ table (Hyperoptic 900 Mbps at an average monthly £22.67). Five months old. Dropped as a current price.

The traps in the fibre results

Three habits keep showing up.

1. Cable dressed as fibre. “Fibre broadband” on a comparison page often means “not ADSL”. Virgin Media’s HFC is fast. It is not a fibre-to-the-premises altnet, and the upload is a different product. If you asked for cheapest full fibre, filter to FTTP.

2. The April line is the price. Vodafone’s homepage is honest about it in one sentence: from £24, increases to £27.50 on 1 April 2027 and £31 on 1 April 2028. Over 24 months that is not £24. First year £302. Second year is worse. I already wrote the lock version of this argument: fixed-price broadband UK. YouFibre still sells a genuine lock. Hyperoptic and Community Fibre, on current terms, do not.

3. Day 19 is a different product. Gigaclear’s 18-month 300 Mbps at £19 looks like the win until the term ends and the published list is £51. YouFibre’s 24-month £20 becomes £34.99 on the current price book. Plusnet goes to £30.99 from 31 March 2028. Rank year one, then look at month 19 before you sign 24.

Setup is not a rounding error either. BT’s £30 and Plusnet’s £20 are a month of broadband, paid on day one. Community Fibre and YouFibre putting £0 on install is why they climb the table even when the monthly number is not the lowest on the tile.

If you qualify for a social tariff

This is not a rewrite of that guide. It is the override.

Ofcom’s pricing research (updated 30 June 2026) still has take-up as the scandal: 532,000 customers on a social tariff as of June 2025, against millions who qualify, and 70% of eligible households did not know the tariffs existed as of October 2025. Typical open-market social tariffs sit around £12.50 to £24 a month and, Ofcom says, do not include mid-contract rises.

Community Fibre’s 35 Mbps Essential at £11.25 on the current sale is sold to new customers without the usual benefits test. That is why it is in the table. BT Home Essentials, Virgin Essential, Sky Basics and Vodafone Essentials are not. If you qualify, those will usually beat a 24-month gigabit you do not need. Details: broadband social tariff deals.

What speed you actually need

Full fibre at 35 Mbps is still full fibre. The glass runs to the house. The package is not a gigabit.

I would not buy 35 Mbps for a household that works from home and streams at the same time. I would buy it for a one-person flat that is on a £40 out-of-contract FTTC line, because the technology upgrade is real and the bill is £135 in year one where Community Fibre exists.

A reasonable open-market target for most homes that can get FTTP is 150–200 Mbps. That is the Community Fibre 150 row (£217) or YouFibre You 200 (£240), not BT Full Fibre 900. Speed need, properly: what broadband speed do I need.

Gigabit is a nice problem to have. YouFibre You 1000 at £300 for the first year, locked, is a better gigabit price than BT Full Fibre 900 on uSwitch this morning at £31.99 plus £30 setup (first year £430 on the same 8+4 method: 8 × £31.99 + 4 × £35.99 + £30 = £429.88). Coverage is the limiter, not the marketing.

If you are still in contract

Do the exit sum before you fall in love with a £217 first year.

Remaining months × your current monthly price is the usual early-termination charge, minus VAT in the way your provider writes it. If that number is larger than the saving over the rest of your term, wait. Set a reminder. Ofcom made providers send end-of-contract notifications for a reason.

If a new provider’s switching credit is real at your address — Vodafone up to £200, Sky up to £200, on their own sites today — subtract only the amount they will pay after you have the bill from the old one. Do not assume the ceiling.

Switching process, including One Touch Switch: how to switch your broadband provider. Leaving early for a reason other than a cheaper FTTP hunt: can I leave my broadband contract early.

An engineer visit for a first FTTP install is normal. That is the optical box on the wall, not a copper jumper at the cabinet. Budget a weekday. The connection you already have should stay up until the new one is live.

Compare at your postcode

The cheap deal only exists if the network has built the street. Check your postcode.Compare at your postcode

Enter it on the broadband compare hub. Filter to full fibre if the filter is there. Ignore the first monthly number until you have:

1. The mid-contract rise, in pounds, with a date — or a genuine lock.

2. Setup or activation.

3. Whether the router is included.

4. Average and minimum guaranteed speed.

5. What happens when the minimum term ends.

I rank by total first-year cost. If the cheapest FTTP at your address is an altnet you have not heard of, that is usually the point. If nothing cheap and full fibre appears, you are not failing at shopping. They have not built your street yet. Then the honest options are a decent FTTC deal, a 5G home router where the signal is real, or waiting — not paying a loyalty penalty on a 67 Mbps line because a blog said “full fibre from £16”.

Frequently asked questions

What is the cheapest full fibre broadband in the UK right now?

There is not one. On 27 August 2026 the cheapest verified FTTP monthly I could put a first-year number on was Community Fibre’s 35 Mbps sale at £11.25 (£135 in year one), London and parts of the South East, 12 months. The cheapest usable 150 Mbps+ row in that same snapshot was Community Fibre 150 at £217 first year, or YouFibre You 200 at £240 with a price lock where Netomnia has built. Gigaclear’s own site starts at £19, not the Q2 £16 survey figure. Check your postcode.

Is full fibre cheaper than part-fibre in 2026?

Often, for new customers. uSwitch’s August fibre page says widely available fibre deals sit around £20–£21 a month and some smaller providers go to about £17. Openreach and the altnets want copper retired. A 150 Mbps FTTP deal can undercut a 67 Mbps FTTC teaser once setup and April are in the sum. Availability is still 82% of homes on Ofcom’s latest national figure, not 100%.

Should I pick the lowest monthly price?

No. Rank twelve months of cash. Plusnet’s £22.99 is £312 in year one with activation and the 31 March rise. YouFibre’s £20 is £240 and does not rise in April. Virgin’s £23.99 Gig1 is usually not full fibre. The tile is not the bill.

Do I need an engineer for full fibre?

If you have never had FTTP at the property, yes. The provider (or Openreach, or the altnet) fits an optical socket. Plan a visit. If full fibre is already in the property and you are switching between providers on the same network, it is often a router swap.

Will the price go up in April 2027?

On BT, EE, Plusnet, Vodafone and Community Fibre’s current 24-month terms: yes, by the pounds figure in the contract (£4 at BT Group, £3.50 at Vodafone, £3 at Community Fibre on the 24-month sale cards). On YouFibre’s 1–31 August 24-month offer: not during the minimum term. On Gigaclear: the homepage says prices may change during the contract. On Sky: “may rise” with no pounds figure on the 27 August uSwitch card I used.

Is a 35 Mbps full fibre deal worth it?

As a bill cut, sometimes. As a household connection, only if one or two people browse and stream in standard or HD. It will not like two 4K streams and a video call. Community Fibre’s own FAQ flags that package for key tasks on a single device.

How long is YouFibre’s cheap £20 / £25 offer on?

The terms I fetched on 27 August cover 1 August to 31 August 2026. After that, I will not quote those monthly prices. Their July window was dearer (You 200 at £24, You 1000 at £28).

Sources

1. Ofcom, Connected Nations update: Spring 2026 (published 13 May 2026; January 2026 data) — https://www.ofcom.org.uk/phones-and-broadband/coverage-and-speeds/connected-nations-update-spring-2026

2. Gigaclear homepage and offer small print, fetched 27 August 2026 — https://www.gigaclear.com/ (300 Mbps £19, £30 activation; 600 Mbps £24, £0 activation; 18-month term; list after term 300 Mbps £51; “prices may change during the contract”; saving claim dated 11 August 2026)

3. Point Topic Q2 2026 entry-level full fibre, reported 13 August 2026 — https://hotminute.co.uk/2026/08/13/the-cheapest-full-fibre-package-in-the-uk-now-costs-just-16-a-month/

4. Community Fibre cheap broadband deals, fetched 27 August 2026 — https://communityfibre.co.uk/cheap-broadband-deals (10% off to 16 September 2026; 35 Mbps £11.25; 150 Mbps 24-month £17.10 then £20.10 from April 2027; £0 setup)

5. YouFibre Offer Terms, 1–31 August 2026 — https://www.youfibre.com/legal/offer-terms-and-conditions/ (You 200 £20, You 1000 £25, You 2000 £30, You 8000 £50; install and Wi-Fi 7 included; prices fixed for 24 months; post-term list You 200 £34.99, You 1000 £39.99)

6. YouFibre homepage, fetched 27 August 2026 — https://www.youfibre.com/ (“Fixed Price 1000 Mbps Full Fibre for just £25/month”; prices available until 31/08/26)

7. Vodafone broadband, fetched 27 August 2026 — https://www.vodafone.co.uk/broadband (from £24 on 24 months; £27.50 on 1 April 2027; £31 on 1 April 2028; up to £200 leaving-fee credit)

8. Plusnet broadband, fetched 27 August 2026 — https://www.plus.net/broadband/ (Full Fibre from £22.99; £20 activation; month 1 £42.99; £26.99 from 31 March 2027; £30.99 from 31 March 2028; Reward Cards advertised ending 27 August 2026)

9. Hyperoptic premium / plans page, fetched 27 August 2026 — https://www.hyperoptic.com/broadband/home/price-plans/premium-plan/ (500Mb from £17/m; £4 every April; 24 months; prices vary by location)

10. uSwitch fibre broadband deals, updated 11 August 2026, fetched 27 August 2026 — https://www.uswitch.com/broadband/compare/fibre_optic/ (Vodafone Full Fibre 910 £23; Vodafone Full Fibre 150 featured £24; Virgin Gig1 £23.99; Sky Full Fibre Gigafast £25; 100Mbps+ filter from £22.00)

11. uSwitch BT deals, fetched 27 August 2026 — https://www.uswitch.com/broadband/providers/bt/ (Full Fibre 150 £23.99, Full Fibre 300 £25.99, Full Fibre 500 £27.99, Full Fibre 900 £31.99; £30 setup; +£4 each March)

12. uSwitch cheap broadband hub, updated 6 August 2026, fetched 27 August 2026 — https://www.uswitch.com/broadband/compare/cheap_broadband/

13. ISPreview, Community Fibre discounts and mid-contract hikes, August 2026 — https://www.ispreview.co.uk/index.php/2026/08/community-fibre-discounts-uk-broadband-plans-as-mid-contract-hikes-return.html

14. ISPreview, YouFibre 24-month terms and August pricing — https://www.ispreview.co.uk/index.php/2026/08/broadband-isp-youfibre-slash-8gbps-plan-to-50pm-and-adopt-24-month-terms.html

15. SwitchSquid broadband hub, fetched 27 August 2026 (still labelled March 2026; cards not used) — https://www.switchsquid.com/broadband/