Last updated: Sunday 6 September 2026 (Europe/London).
Next update: when Community Fibre’s 10% flash sale ends on 16 September 2026, when YouFibre’s September promo window closes, when Hyperoptic’s rolling 1Gb card ends on 5 October 2026, when Virgin’s switching credit window closes on 20 September 2026, or when EE reprints the March 2027 / March 2028 rise path on ee.co.uk. Until then, treat every monthly figure as a 6 September 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 900Mbps broadband deals UK September 2026 is not the same search as cheapest broadband or the 500 Mbps family tier.
Cheapest can be a London mid-tier sale, a 5G hub, or a copper last mile. Five hundred megabits is enough for most 4K households. Nine hundred megabits — often marketed as “Full Fibre 900”, “YOU 1000”, “1Gb” or “Gig1” — is the next shop: many simultaneous 4K streams, big uploads, NAS backups, or future-proofing when the street already has full fibre or Virgin’s top cable tier. The marketing word is often “gigabit”. The product on the till is usually a ~900 Mbps average with a different upload story depending on the network.
uSwitch’s gigabit explainers still mix 900 Mbps Openreach cards with true multi-gig and cable Gig1 under one filter. Our own site already covers 150Mbps September, 300Mbps September, 500Mbps August and gigabit August. This page stays on the ~900 Mbps / 1 Gbps mass-market aisle and ranks first-year cash from retailer own sites only.
This morning’s cash lead where Community Fibre has built is the flash 1 Gbps Full Fibre at £22.50 — Year-1 £285.00 once the April 2027 step is in the sum. Where YouFibre / Netomnia reaches, YOU 1000 at £25 is Year-1 £300.00 with no mid-contract rise. National coverage stories then run Hyperoptic, Virgin Gig1 and EE 900 — in that Year-1 order on the shops I opened.
Compare broadband deals at your postcode. Filter for ~900 Mbps or 1 Gbps. Ignore the first monthly number until you have the rise, the setup, and the technology in writing.
How I count a year
Assumed start: order or activation around Sunday 6 September 2026. First twelve months of cash.
For a deal that discloses a rise on 31 March 2027 (BT Group: EE) or April 2027 (Community Fibre’s annual path on the row I opened):
seven months at the intro rate (September 2026 through March 2027)
five months at the risen rate (April through August 2027)
Add setup or activation. Do not subtract a gift card or switching credit unless I could confirm it is still live today and I can put a claim process on it. Virgin’s switching credit up to £300 (ends 20 September 2026 on the copy I opened) is not subtracted from Year-1 — it is a conditional reimbursement, not a gift.
YouFibre’s 24-month September promo has no mid-term April rise in year one, so that row is simply twelve times the locked monthly plus setup. Hyperoptic’s rolling 1Gb headline I opened has no April pounds step printed on that card — I do not invent one. Virgin Gig1 on the broadband-only product I opened holds £29.99 for the promo term in year one for this sum (then a much higher out-of-contract rate later).
I rank the cost of staying twelve months. Leaving-fee credits only count after you send the old bill. None of those is a promise it covers your specific exit fee.
I also flag technology. Altnet FTTP (Community Fibre, YouFibre, Hyperoptic), Virgin cable Gig1, and Openreach Full Fibre 900 from EE are not the same product. Coverage is address-specific. A London-only sale that wins the cash table is useless in Leeds.
I rank by that first-year cash, not by who pays Switch the most.
900 vs “gigabit” marketing
Ofcom treats gigabit-capable as around 1 Gbps. The mass-market shop sells “Full Fibre 900”, YOU 1000, Hyperoptic 1Gb and Virgin Gig1 in the same aisle. One 4K stream needs about 25 Mbps. Two or three 4K streams, a video call, cloud backups, and a console download at once are why people leave 67–300 Mbps lines — and why many stop happily at 500 Mbps.
What the badge usually means on retailer pages today:
YouFibre YOU 1000 — package name says 1000; average wired speed on their offer copy is about 900 Mbps.
Community Fibre 1 Gbps — marketed as 1 Gbps; comparison table on their own site lists average download around 920 Mbps, symmetrical uploads where built.
Hyperoptic 1Gb — average peak wired about 900/900 Mbps on the 1Gb legal copy.
Virgin Media Gig1 — average download about 1130–1136 Mbps on Virgin’s own gigabit pages; uploads much lower than altnet symmetrical glass.
EE Super Fast 900Mbps / Full Fibre 900 — 900 Mbps down, about 110 Mbps up, with a 700 Mbps speed guarantee on EE’s Core card.
So “900Mbps broadband deals UK” and “gigabit broadband” overlap in the shop, but they are not identical products. Buy the technology at your address and the Year-1 cash, not the poster.
900Mbps deals I could verify today
Prices below are Sunday 6 September 2026. New customers. Broadband-only. All figures come from the retailer’s own shop (or Community Fibre’s comparison table on communityfibre.co.uk). None of them is available at every UK address. I have not invented a BT, Sky or Vodafone 910 monthly I could not isolate on a product card without a postcode today.
Provider | Plan / speed | Year-1 cash | Monthly path |
|---|---|---|---|
Community Fibre (London / SE) | 1 Gbps Full Fibre — ~920 Mbps avg, symmetrical | £285.00 | £22.50 → £25.50 Apr 2027; £0 setup. Flash 10% ends 16/09/2026 |
YouFibre | YOU 1000 — ~900 Mbps wired avg | £300.00 | £25.00 fixed 24m; £0 standard install. Altnet footprint |
Hyperoptic | 1Gb (900/900) rolling | £348.00 | £29.00 × 12 headline; prices vary by location; offer ends 5 Oct 2026 |
Virgin Media | Gig1 Fibre Broadband — ~1130 Mbps avg down | £359.88 | £29.99 × 12 (24m promo); then ~£86. £0 QuickStart. Credit to 20/09 not subtracted |
EE | 900Mbps Core / Full Fibre 900 — 900/110, 700 Mbps guarantee | £413.88 | £31.99 → £35.99 from 31 Mar 2027; £10 activation |
Worked first-year sums, so you can see I have not rounded the story:
Community Fibre 1 Gbps (24-month flash path): 7 × £22.50 = £157.50, 5 × £25.50 = £127.50. Total £285.00. £0 setup.
YouFibre YOU 1000: 12 × £25.00 = £300.00. £0 standard install. Fixed for the 24-month promo term on the offer terms I opened.
Hyperoptic 1Gb: 12 × £29.00 = £348.00 on the national headline. Location may differ — reopen hyperoptic.com at your postcode.
Virgin Gig1: 12 × £29.99 = £359.88. £0 QuickStart setup. Switching credit up to £300 (ends 20 Sep 2026) is not netted from this total.
EE 900Mbps Core: 7 × £31.99 = £223.93, 5 × £35.99 = £179.95, plus £10 activation = £413.88. Month 1 commonly prints as £41.99 including the fee. From 31 Mar 2028 the path goes to £39.99 — that is year two+, not this Year-1 sum.
Lead where Community Fibre has built: the flash 1 Gbps card at £285.00 year one. Lead on YouFibre / Netomnia: YOU 1000 at £300.00. Lead for many Hyperoptic buildings: rolling 1Gb at £348.00 on the headline. Lead for Virgin cable Gig1: £359.88. Openreach Full Fibre 900 national story: EE at £413.88 once setup and March 2027 are counted.
Filter ~900 Mbps on the hub
Open the broadband hub. Enter your postcode. Sort by total cost, not by the loudest “gigabit” badge. Commission does not move a row.
Already sure you want a thinner or fatter pipe? Neighbour guides are 300Mbps September, 150Mbps September, 500Mbps August and gigabit August. This URL stays on the ~900 Mbps / 1 Gbps aisle.
Community Fibre 1 Gbps (flash)
On communityfibre.co.uk fibre deals / comparison, the 1 Gbps Full Fibre broadband row I opened for a 24-month term is £22.50 a month (strikethrough £25 — flash 10% off), £0 setup, free installation, Wi‑Fi 7 router language on the 1 Gbps tier. Average download around 920 Mbps on their comparison table; symmetrical uploads where they have built.
Flash sale copy still points at 16 September 2026. After the in-year April step on that row, the path I am underwriting is £25.50 from April 2027 for the rest of year one. First-year cash: £285.00.
Their table also flags a £4 price_locked step at end of term versus the last in-contract month — that is after the minimum term, not an invented April £3 on a different package. Do not confuse end-of-term lock maths with year-one cash.
Honest caveat: London and limited South East network only. If the checker returns nothing, they have not built your street. Symmetrical glass is the product story — uploads match downloads in a way Virgin cable and most Openreach 900 tiers do not.
YouFibre YOU 1000
On youfibre.com (and the linked September offer terms), YOU 1000 is £25.00 a month for 24 months during the live promo window, standard installation included, prices fixed for the initial term (no mid-contract rise). Average wired speed about 900 Mbps on their copy. After the term, list price on the offer terms I opened sits at £39.99 — that is not year one.
Year-1 cash: £300.00. Altnet / Netomnia footprint only. Postcode check is not optional. If YouFibre has not built, skip this row — do not force an altnet into a national shortlist.
Hyperoptic 1Gb rolling
On hyperoptic.com’s 1Gb price-plans page, the headline card is £29 a month rolling for 1Gb full fibre, with average peak wired about 900/900 Mbps. Router included at no extra cost on the FAQ copy. Offer end date on the card I opened: 5 October 2026.
Year-1 cash on that headline: £348.00. Prices vary by location — I am not inventing a cheaper postcode. April rises exist on other Hyperoptic plans; I did not invent one on this rolling 1Gb card when the page did not print it.
Hyperoptic reaches tens of UK towns and cities, but still only where they have built into the building. Flat or MDU coverage is the usual story. Check the address, not the city name alone.
Virgin Media Gig1
On virginmedia.com gigabit broadband, Gig1 Fibre Broadband (broadband-only) is £29.99 a month for a 24-month minimum term product, then currently about £86 thereafter on the legal blurb I opened. Average download about 1130–1136 Mbps; uploads far below symmetrical altnets. QuickStart setup £0 (engineer install can cost if you choose it when QuickStart is available).
Year-1 cash: £359.88. Discounted pricing may vary by location — reopen Virgin at your postcode. Switching credit up to £300 ends 20 September 2026 on the live copy; I do not subtract it from Year-1 because it is conditional on your old exit fee paperwork.
Virgin Gig1 is the national cable story in this aisle. It is not Openreach FTTP. It is not symmetrical. If upload speed is why you want “gigabit”, measure that need before you buy the download poster.
EE 900Mbps Core
On ee.co.uk/broadband, 900Mbps Core Broadband (Full Fibre 900) is £31.99 a month, £10 activation (save-on-activation language on the card), rising to £35.99 from 31 March 2027 and £39.99 from 31 Mar 2028. Speed: 900 Mbps down, about 110 Mbps up, 700 Mbps guarantee. Wi‑Fi 7 Smart Hub language on the Core card. Contract 24 months.
Year-1 cash for a 6 September start: 7 × £31.99 + 5 × £35.99 + £10 = £413.88.
Openreach Full Fibre footprint is the coverage advantage. EE also markets leaving-fee / switch credits on some journeys — again, not subtracted from Year-1 here. Open ee.co.uk at your postcode before you celebrate a comparison tile that has already moved.
What I dropped
Retailer shops did not give me a clean broadband-only ~900 Mbps national card without a postcode, or the product was a TV bundle.
BT Full Fibre 900 — bt.com/broadband/deals is a postcode SPA; no clean isolated BB-only FF900 pound from this crawl. Comparison-site £ figures are not used.
Vodafone Full Fibre 910 / Pro — homepage “from £” across a speed ladder; no dedicated 910 monthly + setup isolated without a basket.
Sky Gigafast / FF900 — speed marketing without a clear broadband-only £ without postcode.
TV bundles — EE / Virgin / Sky entertainment packs are a different bill. This page is broadband-only Year-1 cash.
If a comparison tile is cheaper than Virgin’s own £29.99 or EE’s own £31.99 path and the ISP shop does not print it, the tile is not a deal.
Altnet cash versus national coverage
Community Fibre and YouFibre win Year-1 cash where they exist — £285 and £300 — and they fix or lock mid-contract rise behaviour in ways that matter. Hyperoptic’s rolling £348 headline is the flexible altnet story in buildings they serve.
If those checkers return nothing, the honest options today are Virgin Gig1 at £359.88 where the cabinet is yours, or EE Full Fibre 900 at £413.88 on Openreach where FTTP is live. Waiting is also a valid answer. Paying for a Sport pack because it loaded first on a hub is not.
Do not upsell yourself from a working 500 Mbps line into a 900 Mbps bill you will never saturate on Wi‑Fi.
Wi‑Fi versus wired honesty
You will rarely see a full 900 Mbps on a phone. Altnets quote wired or ethernet averages. Wi‑Fi 6/7 and wall losses cap real-world laptops and phones well below the line speed. Ethernet to a desktop, NAS or console is the honest test. If the contract promises 900 Mbps and your living-room tablet shows 180, that is usually the air, not the fibre.
Buy the line speed for the rooms you care about, then mesh or wire the last metres. Do not pay Gig1 cash for a single phone browsing Instagram on the far side of a Victorian terrace.
Who actually needs ~900 Mbps
Households with several 4K streams plus large uploads, a home NAS, creative work uploading raw footage, or future-proofing when the street already has FTTP or Virgin’s top cable tier. One laptop and Netflix do not need this aisle — start on 150 or 300.
Illustrative only: a 20GB console download at a sustained 900 Mbps can finish in a few minutes on a wired test; on congested Wi‑Fi it will not. If your busy-hour speed test already sits above 400 Mbps on a cheaper tier, measure the pain before you pay for marketing megabits.
How I ranked these (and what I refuse to do)
I open the retailer’s own broadband page. I take the monthly pound, the rise date already written into the contract, and the setup. I build twelve months of cash. I sort by that Year-1 total. I do not sort by commission. I do not sort by “from” price on a comparison exclusive.
I refuse to:
subtract Virgin / EE switching credits from Year-1 cash
invent a BT / Sky / Vodafone 910 pound without an isolated retailer card
treat a TV bundle as broadband-only
call a 500 Mbps deal a 900 Mbps deal because a filter said “gigabit+”
Affiliate links, when we use them, do not move a row in this table. If Community Fibre or YouFibre is cheaper on their own shop than a partner deep link, the shop price wins the ranking.
FAQ
What is the cheapest 900Mbps broadband deal in the UK right now?
Where Community Fibre has built, the flash 1 Gbps at £22.50 is Year-1 £285.00 on 6 September 2026 (flash ends 16 September 2026). Where YouFibre reaches, YOU 1000 at £25 is Year-1 £300.00. National cable / Openreach stories then run Hyperoptic headline £348, Virgin Gig1 £359.88, EE 900 £413.88.
Is 900 Mbps the same as gigabit?
In the shop aisle, often yes — Full Fibre 900, YOU 1000 and Hyperoptic 1Gb are sold next to Virgin Gig1. Technically, averages differ: many “900” cards sit under 1 Gbps; Virgin Gig1 advertises about 1.1 Gbps down. Buy the average and the upload, not the badge.
Should I take Community Fibre or YouFibre?
Take whichever checker returns a live install at your address. Community Fibre wins Year-1 cash today at £285 on the flash path. YouFibre is £300 with a fixed 24-month promo rate and no mid-contract rise. If neither has built, look at Hyperoptic, Virgin or EE.
Why didn’t you subtract Virgin’s £300 switching credit?
Because it is conditional on your old provider’s exit fee paperwork and ends 20 September 2026 on the copy I opened. Year-1 cash on this page is the bill path, not a hoped-for reimbursement.
Why is EE more expensive than Virgin Gig1?
EE’s Year-1 includes a £10 activation and a 31 March 2027 rise to £35.99 in the 7+5 maths. Virgin’s promo monthly holds at £29.99 for this Year-1 sum on the product I opened. Different networks, different upload stories, different coverage.
Do I need 900 Mbps?
Only if multiple heavy streams, big uploads or a wired workstation will use it. Most homes are fine on 300–500 Mbps. Check a busy-hour speed test and last month’s habits before you upsell yourself.
Where do I compare live broadband at my postcode?
Use the SwitchSquid broadband hub — enter the postcode, filter around 900 Mbps / 1 Gbps, sort by total cost, then click through to the retailer before you pay.
Compare live ~900 Mbps deals
Retailer pages move. This ranking is dated 6 September 2026. Before you pay, open the shop URL behind the row, confirm the pound, the rise date, and coverage at your exact address.
Ready to filter the live grid? Compare broadband deals on SwitchSquid — sorted by what you actually pay in year one, not by who shouted “gigabit” loudest on a comparison tile.
