12-month broadband deals: the balanced choice between rolling and long-term lock-in
A 12-month broadband contract sits neatly between rolling 1-month flexibility and 24-month savings. It saves £60 to £180 per year compared to rolling, keeps you out of the two-year commitment trap, and lets you reprice sooner if UK broadband prices fall or fibre reaches your street. For most UK households who expect to stay 12 to 24 months with reasonable certainty, it is the sensible default. This page shows the three-way cost comparison, the situations where 12-month wins, and the ones where you would be better off elsewhere.
The six things to know first
Saves £60 to £180 per year vs rolling
For a £10 per month discount over rolling, you commit to 12 months. Over the full term that is £120 saved: roughly a month of free broadband every year.
Repricing point every 12 months
UK broadband prices and provider availability change fast. A 12-month term means you can reprice or switch every year, catching falling prices or fibre that has newly reached your street.
Only £3 to £5 per month more than 24-month
24-month deals undercut 12-month by a small margin. For most households that's worth paying to avoid the second-year lock-in and keep renewal optionality.
Early-termination fees match remaining months
Leave before month 12 and you pay roughly the remaining monthly payments as an exit fee. Only commit when you expect to stay the full year.
Good fit for 12 to 24-month stays
Sweet spot: households staying a year or two, with some uncertainty about year two. Tenants on 12-month leases, couples planning to move eventually, workers in stable-but-not-forever jobs.
Watch the in-contract price rise wording
Under Ofcom rules, any in-contract price rises must be disclosed in pounds and pence before you sign. Check the exact amount and timing for months 2 to 12.
Compare 12-month broadband at your postcode
See live UK 12-month broadband deals at your address, sorted cheapest first. Fibre and wireless options, one-year commitment, natural renewal point after 12 months.
Enter your postcode →What a 12-month contract actually offers
A 12-month broadband contract commits you to a minimum of 12 monthly payments. In exchange, the provider discounts the monthly price compared to a rolling deal (because they can amortise customer acquisition costs over a year) without asking for a two-year commitment. Most UK major and altnet providers offer 12-month terms across fibre (FTTP), FTTC, and cable packages; some premium tiers and bundles are only available on longer terms.
Early-termination fees (ETFs) apply if you leave before month 12. They typically equal the remaining monthly payments minus any introductory discount, so cancelling at month 6 on a £25 per month deal means paying roughly £150 in ETFs. In practice, this means a 12-month contract only makes sense when you are reasonably confident you will see out the full term. If your situation is genuinely uncertain, see our rolling 1-month deals guide for the flexibility premium analysis.
The savings case: 12-month vs rolling
The annual saving from a 12-month contract over rolling is meaningful. Typical UK figures: rolling fibre deals run £28 to £45 per month; 12-month equivalents run £22 to £35. The difference is usually £5 to £15 per month, or £60 to £180 over a full year of service.
That saving comes with a commitment. Once past the 14-day cooling-off period, you owe the remaining monthly payments if you leave early. The honest trade is: rolling is worth the premium if you have concrete reasons to expect a move within 12 months; 12-month is worth the commitment if you do not. Most households overestimate the likelihood of moving and pay a year-long flexibility premium they never use.
The flexibility case: 12-month vs 24-month
Going the other way, 24-month contracts undercut 12-month deals by only £3 to £5 per month in most of the UK market. That is £36 to £60 per year of additional savings, or around £72 to £120 saved over the full 24-month term.
Whether that saving is worth the second-year lock-in depends on three factors. First, how stable is your situation? Will the job, tenancy, and life circumstances that put you in this home still apply in 18 to 24 months? Second, is full fibre likely to reach your address within two years? If so, being free to switch at month 12 is more valuable than the 24-month discount. Third, how quickly does the UK market move? If prices continue to fall or altnets expand, a 12-month repricing point catches those gains; a 24-month term misses them.
The 24-month savings case is strongest for settled homeowners in areas where fibre has already arrived. The 12-month flexibility case is strongest for renters, first-time buyers, and anyone in a postcode where fibre rollout is imminent or in progress.
Three-way total-cost comparison
Representative UK figures: rolling at £35/month, 12-month at £25/month, 24-month at £22/month. All assume £0 setup and no early-termination fees. The table shows total cost if you genuinely stay for that length of time.
| Length of stay | Rolling (£35/mo) | 12-month (£25/mo) | 24-month (£22/mo) | Best choice |
|---|---|---|---|---|
| 6 months | £210 | £150 + ~£100 ETF | £132 + ~£400 ETF | Rolling |
| 12 months | £420 | £300 | £264 + ~£264 ETF | 12-month (saves £120 vs rolling) |
| 18 months | £630 | £450 (incl. 6 post-term) | £396 + ~£132 ETF | 12-month (saves £180 vs rolling) |
| 24 months | £840 | £600 | £528 | 24-month (saves £72 vs 12-month) |
| 36 months | £1,260 | £900 (or renew once) | £792 + ~12 months at mix | 24-month + renew (most savings) |
The highlighted row captures the key insight: at exactly 12 months of stay, 12-month is the clear winner. It beats rolling by £120 (the flexibility premium) and beats 24-month once early-termination fees are factored in. For stays of 12 to 18 months with any uncertainty about year two, 12-month remains the safest bet.
Example assumes no mid-term price changes. Under current Ofcom rules, any scheduled in-contract uplifts must be disclosed in pounds and pence at sign-up, so you can add them to your own calculation.
Decision matrix: when 12-month is right
The 12-month option fits a specific profile very well. When it does not, either rolling or 24-month is the better move.
The balance works for you
12-month is the sensible default when
- You expect to stay 12 to 24 months but are not certain about year two
- You are a renter with a 12-month lease, likely to renew but not committed
- Full fibre is not yet at your address but rollout is underway and might arrive within a year
- UK broadband prices are falling in your area (altnet competition, new provider arrivals)
- You want a natural annual renewal point to reprice or switch
- The 12-month premium over 24-month in your comparison is £5/month or less
- You have lived at your address for 6 to 18 months and plan to continue
Rolling or 24-month fits better
The edges where 12-month is the wrong middle ground
- You expect to move within 6 months: pick rolling
- Your situation is very uncertain (job change, short let): pick rolling
- You have owned your home 5+ years and have no move plans: pick 24-month
- Fibre has already arrived and the 24-month price is £5+ per month cheaper: pick 24-month
- You qualify for a social tariff: compare social tariffs first
- You need the connection for under 6 months total (holiday let, short stay): pick rolling
See our contract length guide for the full picture across all three options.
What to check before signing a 12-month deal
Five checks that separate a sensible 12-month contract from one where the apparent saving gets eaten by fees or mid-term changes.
Five-step 12-month check
Run through each before you commit.
Compare the monthly price against both alternatives
The comparison tool shows rolling, 12-month and 24-month side by side. Ideally the 12-month price sits within £5/month of the 24-month equivalent; if the gap is wider, check whether the 24-month has a mid-term discount clawback that evens things up.
Read the in-contract price rise wording
Under Ofcom rules (Ofcom, 2024a), any scheduled uplifts must be stated in pounds and pence before you sign. Check the exact amount and month. A £3 per month April uplift on a £25 contract is meaningful over the full year.
Confirm setup and delivery fees
Most UK 12-month deals include free router delivery and setup. If there is a £30 to £80 activation fee, add it to your first-year total. On a £25/month deal, a £60 setup fee is two-and-a-half additional months of broadband cost.
Check the early-termination fee calculation
ETFs typically equal the remaining monthly payments minus any introductory discount. Ask the provider (or check the contract) for the exact formula. Some add a small administrative fee, some waive ETFs if moving to an address they cannot serve. The latter is worth asking about explicitly.
Verify what happens after the 12 months end
Most UK 12-month contracts roll onto a higher "out of contract" rate once the minimum term ends. That is typically £10 to £20 more per month than the promotional rate. Set a calendar reminder for month 11 to reprice or switch under One Touch Switch (Ofcom, 2024b) to avoid silent overpayment.
Moving home within the minimum term
A 12-month contract still binds you to a network at a specific address. If you move home before month 12, you have three options, each with different implications.
Transfer the contract to the new address
Most UK providers will transfer the contract to your new address if they can serve it there, usually with no ETF and sometimes with a small "house move" activation fee. The contract typically picks up where it left off (month 6 becomes month 6).
Cancel if provider cannot serve new address
If the new address is outside the provider's network, many will waive the ETF entirely. This is an important clause to confirm at sign-up, especially if a move is possible within the year.
Pay the ETF and start fresh
Worst case. The ETF typically equals the remaining monthly payments. Only rational if the new address has significantly better options (e.g. FTTP arrives where you had only FTTC).
Full background in our moving home broadband guide.
Live 12-month deals at your postcode
12-month deals are common across UK major providers, altnets and mobile network broadband. Availability varies by postcode. The full comparison tool shows all contract lengths together.
12-month broadband: frequently asked questions
Are 12-month deals more expensive than 24-month?
Slightly. Typical UK figures show 12-month deals at £3 to £5 per month more than 24-month equivalents from the same provider. Over the full minimum term, that is £36 to £60 extra, or £72 to £120 across a two-year equivalent. In exchange you get a renewal point at month 12, which is valuable if prices are falling or fibre is spreading in your area. The total-cost table above shows the numbers at various stay lengths.
Can I get full fibre on a 12-month term?
Yes, on most UK FTTP networks that serve your address. Major providers (BT, Sky, Virgin Media, Vodafone) routinely offer 12-month FTTP options alongside 24-month deals. Many altnets (Hyperoptic, Community Fibre, YouFibre, Gigaclear, Zen, etc.) also offer 12-month FTTP contracts. Some premium tiers (1 Gbps+ symmetrical, business-grade) are only available on longer terms. See the full fibre deals page for availability.
Is One Touch Switch available for 12-month contracts?
Yes, for eligible fixed-line switches. One Touch Switch (Ofcom, 2024b) coordinates the handover between providers on the same underlying infrastructure, which includes moves between FTTC/FTTP providers. At the end of your 12-month minimum term, OTS makes switching to a better deal significantly easier than it used to be. Set a calendar reminder for month 11 so you have time to compare before the contract rolls onto the out-of-contract rate.
What about in-contract price rises during the 12 months?
Under new Ofcom rules effective from January 2025 (Ofcom, 2024a), any scheduled in-contract price rises must be stated in pounds and pence before you sign, not linked to inflation indices. Check the contract wording for the exact amount and month of any scheduled uplift. For 12-month deals, a single April uplift is common; for 24-month deals, expect a second uplift in year two. See our full guide.
Can I leave a 12-month contract early without penalties?
Usually no, but there are specific situations where providers waive or reduce early-termination fees. The most common is moving to an address the provider cannot serve. Many UK providers waive ETFs in this case, so always confirm the policy at sign-up. Other potential cases: bereavement, significant provider service failures over extended periods, or mid-term price rises you did not agree to at sign-up (though since January 2025 these are essentially eliminated by the Ofcom rules above).
Do 12-month deals come with free router delivery and installation?
Most UK 12-month broadband contracts include free router delivery and plug-and-play setup for FTTC, FTTP (once engineer install is done), and cable packages. FTTP first-time installs typically include a free engineer visit. Check the order summary for any activation or delivery fee. These range from £0 to £80 and should be included in the first-year total cost calculation.
How do 12-month deals compare to social tariffs?
UK social tariffs (Ofcom, n.d.) often match or beat 12-month promotional pricing for eligible households on qualifying benefits. Before committing to a standard 12-month deal, check whether you or someone in the household qualifies. The saving can be £60 to £200 per year, with similar or equivalent speeds. Some social tariffs are rolling-month, some are 12-month; both are typically below standard market rates.
What happens after the 12 months end?
Unless you take action, most UK 12-month broadband contracts automatically roll onto a higher "out of contract" rate that is typically £10 to £20 per month more than the promotional price. Providers must notify you as the minimum term approaches. Three sensible moves at month 12: renew with the same provider at a new promotional rate (often possible via their retention team); switch to a better deal using One Touch Switch; or move to a rolling 1-month while you work out what you actually want.
References
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Ofcom
Ofcom. (2024, July 19). Ofcom bans mid-contract price rises linked to inflation. ofcom.org.uk
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Ofcom
Ofcom. (2024, September 12). Simpler and quicker broadband switching is here. ofcom.org.uk
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Ofcom
Ofcom. (n.d.). Social tariffs: cheaper broadband for people on benefits. Retrieved 23 April 2026, from ofcom.org.uk
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Also worth checking: 24-month deals if you are settled and want the biggest discount; rolling 1-month if your situation is genuinely uncertain; or the full postcode comparison to see every contract length side by side at your address.
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