Gigabit broadband deals UK September 2026: first-year cash, not the 1Gb tile

Last updated: Saturday 24 October 2026 (Europe/London). The ranking table is a 10 September 2026 snapshot of retailer shops; altnet promo prices change often, so re-check the contract summary at your postcode before you order. For near-gigabit cash without the full gigabit aisle, see the 900Mbps September guide. By: Switch Editorial Team, Switch Squid Ltd

Gigabit broadband deals UK September 2026 is not the same search as cheapest broadband or the 500 Mbps family tier.

Cheapest can be a 35 Mbps London sale, a 5G hub, or a copper last mile. Five hundred megabits is enough for most 4K households. Gigabit 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. Ofcom’s Connected Nations Spring 2026 update — still the coverage frame we cite via Compare the Market — puts roughly 89% of UK homes as gigabit-capable and about 82% on full fibre. Plenty of those homes can now buy a named 900 Mbps or 1 Gbps package. The job is ranking what that year actually costs.

uSwitch still has no dedicated first-year gigabit ranking. Its broadband hub (updated around 3 September 2026) leads on mixed tiles and still shows a Virgin Gig1 comparison exclusive at £23.99 — cheaper than Virgin’s own shop at £29.99. MoneySavingExpert has no dedicated gigabit deals URL either. Our August gigabit guide remains live at its own URL; this page is the new September URL, not an overwrite of August.

This page ranks gigabit broadband deals UK September 2026 by first-year cash from retailer own sites only: intro monthly, the March or April 2027 rise already written into the contract, setup. Not commission. Not a Sport pack. Not a comparison exclusive that is cheaper than the ISP shop. If you only want the absolute lowest bill at any speed, use the cheapest broadband hub. If 500 Mbps is already enough, stay on the 500Mbps September guide — do not upsell yourself into a gigabit bill you will not use.

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 we count a year

Contract start roughly Thursday 10 September 2026. First twelve months of cash.

For a deal that discloses a rise on 31 March 2027 (BT Group: BT, EE) or April 2027 (Virgin, TalkTalk, toob):

• 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 we could confirm it is live and has a claim process. Reward cards are noted in sources where they matter; they are not netted from the totals here.

YouFibre’s 24-month September promo and Community Fibre’s in-contract lock have no mid-term April rise in year one, so those rows are simply twelve times the locked monthly plus setup.

The ranking uses 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.

Deals are ranked by first-year cost, not by the commission we earn.

What gigabit is for

Ofcom treats gigabit-capable as around 1 Gbps. The mass-market shop sells “Full Fibre 900”, Sky Gigafast, Vodafone 910 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 Mbps FTTC — and why many stop happily at 500 Mbps.

Gigabit is for denser households: 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. You do not need it for one laptop and Netflix. You need a real average near 900–1100 Mbps on a wired test, a minimum guarantee where the Openreach products print one, and a router that is not a decade-old hub in a YouView photo.

Virgin Gig1 advertises about 1136 Mbps download on its own site (gigabit page copy also cites ~1130). EE and BT Full Fibre 900 print 900 Mbps average with a 700 Mbps guarantee. YouFibre YOU 1000 quotes about 900 Mbps on a wired test. Community Fibre’s 1 Gbps card is symmetrical 1000/1000 where they have built. toob home900 is symmetrical 900/900. Those are different products: cable, Openreach FTTP, altnet FTTP. Do not buy the badge. Buy the technology at your address.

Rank Year-1 cash first, then check whether full fibre or cable actually reaches your street.

Gigabit deals we could verify

Prices below are Thursday 10 September 2026. New customers. Broadband-only unless stated otherwise. All figures come from the retailer’s own shop (or that ISP’s live comparison table on its own domain). None of them is available at every UK address. Every tier listed is one the provider names, and we have not used uSwitch’s Virgin Gig1 tile at £23.99 — Virgin’s own shop is £29.99.

Rank twelve months of cash. Community Fibre’s £22.50 London sale is £270. toob’s £23 home900 is £286 once April is in the sum. YouFibre’s £25 lock is £300. Virgin Gig1 on virginmedia.com is £379.88 — still the national lead ahead of EE and TalkTalk 900. EE’s own-site £31.99 is £413.88 with setup and March.

Worked first-year sums, with nothing rounded:

• Community Fibre 1 Gbps: 12 × £22.50 = £270. Price locked in-contract; £0 setup. The 10% flash sale on communityfibre.co.uk runs to 16 September 2026. The +£4 rise is after the term — not in year one.

• toob home900: 7 × £23 = £161, 5 × £25 = £125. Total £286. Free installation on toob.co.uk.

• YouFibre YOU 1000: 12 × £25 = £300. Fixed for 24 months on the 1–30 September 2026 promo; standard install included. Check YouFibre’s current offer terms at your postcode.

• Virgin Gig1: 7 × £29.99 = £209.93, 5 × £33.99 = £169.95. Total £379.88. No setup on QuickStart. Virgin’s help page: +£4 each April for joins after 2 October 2025.

• EE 900Mbps Core: 7 × £31.99 = £223.93, 5 × £35.99 = £179.95, plus £10 setup = £413.88. Month 1 prints as £41.99 including the fee.

• TalkTalk Full Fibre 900: 7 × £36 = £252, 5 × £40 = £200. Total £452. £0 setup.

• EE 1.6Gbps Core: 7 × £40.99 = £286.93, 5 × £44.99 = £224.95, plus £30 setup = £541.88.

• Virgin Gig2: 7 × £49.99 = £349.93, 5 × £53.99 = £269.95. Total £619.88. £0 setup. Selected full-fibre postcodes only.

Lead where Community Fibre, toob or YouFibre exist: those three win on cash. Community Fibre and YouFibre have no in-contract April rise in year one; toob discloses a small April step but still undercuts every national major. Lead for most of the UK: Virgin Gig1 at £379.88 first year, £0 setup, about 1.1 Gb advertised — still cheaper than EE 900 once setup and the March rise are counted.

London altnet versus national coverage

Community Fibre only exists where they have built — mainly London. YouFibre (Netomnia) and toob are postcode-specific too. If the checker returns nothing at 1 Gbps or 900 Mbps, they have not built your street. Then the honest options are Virgin Gig1 where the cabinet is yours, Openreach Full Fibre 900 from EE (or BT once your postcode prints a clean 900 row), TalkTalk Full Fibre 900 on TalkTalk’s own shop, or waiting — not paying for a TV Sport pack because it loaded first on a hub.

EE on Openreach gives you a wide footprint for a named 900 Mbps full fibre product. ee.co.uk, when we checked on 10 September 2026, showed £31.99 intro with a £10 activation fee (down from £30) and £35.99 from 31 March 2027. Open ee.co.uk before you celebrate a comparison tile that has already moved.

Virgin Gig1 is the national broadband-only lead we could verify on an own shop for homes outside the cheap altnet footprints. Gig2 is a different product: selected full-fibre areas, 2000 Mbps down, and a first-year cash of £619.88. Do not confuse the two when the postcode checker offers both.

One more TalkTalk note that is not a ranked gigabit row: TalkTalk U at £25 (rising to £29 in April 2027, £0 setup, about £320 in year one on the same 7+5 math) is an adaptive 65–900 Mbps product at one price. It is not a guaranteed gigabit plan. If the line actually lifts toward 900 at your address, it can be the cheapest TalkTalk path — but it stays out of the gigabit table because it is not Full Fibre 900.

BT Full Fibre 900 did not show a clean broadband-only price plus setup on the public bt.com landing — the open hero was Full Fibre 150 — so there is no BT 900 row in the table. Check your postcode on bt.com if Openreach is your only path.

Why 900 Mbps counts as gigabit here

Openreach and CityFibre “Full Fibre 900”, Sky Gigafast and Vodafone 910 are the mass-market gigabit-capable tier. Ofcom’s gigabit-capable definition sits around 1 Gbps; the industry ranks 900 Mbps+ in the same shop aisle. Virgin Gig1 is the one that actually advertises ~1136 Mbps. EE prints a 700 Mbps speed guarantee under the 900 average. This page ranks every retailer-verified 900 Mbps+ broadband-only deal we could find. It does not mix in 500 Mbps rows — those already have their own page.

What we left out because we could not verify a clean broadband-only 900+ floor on the retailer’s own shop when we checked on 10 September 2026: Sky Gigafast broadband-only (Sky’s landing page is postcode-gated), Vodafone Full Fibre 910 (homepage only prints “from £24” across 74–910 Mbps), Plusnet Full Fibre 900 (no isolated 900 floor on the pages checked), Hyperoptic 1Gb (homepage shows £29/m rolling with prices varying by location; 24-month setup not clean without a postcode), BT Full Fibre 900 (public landing gated), and uSwitch’s Virgin Gig1 £23.99 tile (cheaper than Virgin’s own £29.99 — SwitchSquid ranks retailer shops only).

Wi-Fi versus wired honesty

You will rarely see a full gigabit on a phone. YouFibre, Community Fibre, toob and similar altnets quote wired or ethernet averages. Wi-Fi 6/7 and wall losses cap real-world laptops and phones well below 1 Gbps. 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 Gig2 cash for a single phone browsing Instagram on the far side of a Victorian terrace.

— then come back to this table for the Year-1 maths the tiles skip.

Gigabit helps dense households; many homes are happier stopping at 500 Mbps.

FAQ

Do I actually need gigabit, or is 500 Mbps enough?

Most 4K, work-from-home and gaming homes are fine on 300–500 Mbps. Gigabit is for many simultaneous 4K streams, big uploads, a busy NAS, or future-proofing when the street already has the network. If you are not sure, start with the 500Mbps September guide and only step up when the postcode checker shows a gigabit row that still makes sense on first-year cash.

Why do providers sell “gigabit” at 900 Mbps?

Openreach and CityFibre “Full Fibre 900”, Sky Gigafast and Vodafone 910 are the mass-market gigabit-capable tier. Ofcom treats around 1 Gbps as gigabit-capable; the industry ranks 900 Mbps+ in the same shop. Virgin Gig1 is the one that actually advertises about 1136 Mbps. EE prints a 700 Mbps guarantee under the 900 average.

Will I get gigabit on Wi-Fi?

Usually no. Altnets quote wired averages. Wi-Fi 6/7 and walls cap phones and laptops well below 1 Gbps. Ethernet to a desktop or console is the honest test. Mesh the house after you buy the line, not instead of reading the average speed.

Which gigabit deals do not rise in April 2027?

YouFibre’s 24-month September promo is fixed for the term. Community Fibre locks the in-contract sale price; the +£4 rise is after the term. Virgin, EE, TalkTalk and toob all disclose a March or April 2027 rise — that is why Virgin’s £29.99 tile is £379.88 in year one, not £359.88, and why toob’s £23 home900 is £286, not £276.

Can I get gigabit at my postcode, and how do I switch?

Ofcom Spring 2026 (via Compare the Market): about 89% of UK homes are gigabit-capable and about 82% have full fibre. Availability is still address-specific — Virgin Gig2 and the altnets especially. Use One Touch Switch where it applies, then read the technology and the first-year cash before you click through.

Is Virgin Gig1 still cheaper than EE 900 after the rise?

On the own-shop maths when we checked on 10 September 2026, yes in year one: Virgin Gig1 £379.88 versus EE 900Mbps Core £413.88 including the £10 setup. That can flip if your address has Community Fibre, toob or YouFibre — those three still undercut both.

What about Hyperoptic or Sky Gigafast?

When we checked on 10 September 2026, Hyperoptic’s homepage showed 1Gb from £29/m on a rolling deal with prices varying by location — there is no clean 24-month Year-1 total without a postcode. Sky Gigafast is postcode-gated on the shop landing. Where a provider doesn’t show a price without a postcode, we leave it out.

Compare at your postcode

The gigabit deal only exists if the network has built the street or Virgin’s cabinet is actually yours. Check your postcode on the broadband hub.

Then, before you click through:

• Technology: FTTP, cable, or something else. “Fibre” on the badge is not enough.

• Average and minimum guaranteed speed. EE 900 prints a 700 Mbps guarantee.

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

• Setup or activation.

• What happens when the minimum term ends. Virgin Gig1 goes to £86 from month 25 on Virgin’s legal terms when we checked on 10 September 2026. YouFibre’s list after the promo term is currently £39.99.

Deals here are ranked by total first-year cost. If the cheapest gigabit row at your address is a London altnet you have not heard of, that can still be the right bill. If nothing near 900 Mbps appears, they have not built yet — and a TV bundle lead is still not the answer.

Sources

• Community Fibre deals (1 Gbps £22.50 / £0 setup; 10% off to 16.09.26) — checked 10 September 2026

• toob.co.uk home900 (£23 → £25 April 2027; free install) — checked 10 September 2026

• YouFibre homepage and September offer T&Cs (YOU 1000 £25 fixed, 1–30 Sep 2026) — checked 10 September 2026

• Virgin Media broadband + annual price change help (Gig1 £29.99; +£4 April; Gig2 £49.99) — checked 10 September 2026

• EE broadband (900Mbps Core £31.99 + £10; 1.6Gb £40.99 + £30; rises from 31 Mar 2027) — checked 10 September 2026

• TalkTalk broadband (Full Fibre 900 £36 → £40 April 2027) — checked 10 September 2026

• uSwitch broadband hub — competitor notes only (Virgin Gig1 £23.99 exclusive left out)

• Neighbour guides: August gigabit post; 900Mbps September 2026; 500Mbps September 2026