One Touch Switch UK 2026: how it works, performance, and what's changing

What One Touch Switch is and why it launched

One Touch Switch is the Ofcom-mandated UK process under which a consumer wishing to switch fixed-line broadband or voice provider contacts only the new (gaining) provider; the gaining provider then handles cancellation of the existing contract with the losing provider via a central messaging platform called the TOTSCo Hub. The process applies to all UK communications providers serving residential customers' Internet Access Service or Number-based Interpersonal Communications Service at a fixed location, regardless of provider size. OTS is a Gaining Provider Led (GPL) process, meaning the new provider takes responsibility for the switch end-to-end; the customer never needs to contact the losing provider directly under standard OTS.

OTS replaced two legacy processes that had grown unfit for the modern UK broadband market: the Notification of Transfer Plus (NoT+) process used for Openreach-to-Openreach switches (which still required customers to coordinate aspects of the switch and frequently led to gaps in service) and a fragmented set of bilateral cross-network arrangements used for switches between Openreach, Virgin Media, and altnets (which often required customers to contact both old and new providers separately, sometimes paying both during the handover). The pre-OTS landscape was particularly poor for cross-network switches, where customers commonly experienced multiple days of total service loss while the old service was disconnected before the new service could be activated. OTS was designed to fix all of this with a single uniform process.

Ofcom's regulatory framework for OTS is set out in General Conditions of Entitlement C7.18-C7.27 (the switching obligations) and C7.47-C7.49 (the compensation obligations). All UK communications providers serving residential fixed-line broadband or voice customers must comply with OTS regardless of size; smaller resellers and altnets typically integrate via Managed Access Providers (MAPs) which provide TOTSCo Hub access on behalf of multiple smaller communications providers. Wholesale-only providers (Openreach, CityFibre, Netomnia, Hyperoptic at the wholesale level) are not directly subject to OTS but their retail partners are. This means OTS now governs effectively every UK residential fixed-line broadband and voice switch in 2026.

How OTS works step-by-step in 2026

From the customer's perspective, OTS in 2026 is straightforward: choose a new provider, place an order, receive a Switching Information Notification within 1-5 working days, give consent to proceed, and the switch happens automatically on the agreed activation date. Behind the scenes the process involves a sequence of TOTSCo Hub messages between the gaining and losing providers that must complete within specific Ofcom-mandated timelines.

Most UK 2026 OTS switches complete within 10-14 working days end-to-end from order placement to activation. Same-network Openreach to Openreach switches (BT to Sky, TalkTalk to Vodafone, Plusnet to Zen, EE to NOW Broadband) typically take 10 working days; same-network CityFibre to CityFibre switches similarly take 10 working days with very brief downtime; cross-network switches (Openreach to Virgin Media, Openreach to CityFibre, Virgin Media to YouFibre on Netomnia) typically take 10-20 working days because an engineer install is usually required. CityFibre's claim that any home passed by its network can schedule a full fibre install within 5 working days applies primarily to same-network and cross-network-into-CityFibre cases.

The customer-visible experience under OTS is deliberately simpler than what happens behind the scenes. ISPreview UK has documented strong customer experiences under OTS (including a Virgin Media to Sky over CityFibre switch reported in 2026 as "very good" with smooth communication from Sky, professional CityFibre install, clean Virgin Media disconnection the morning after activation, and accurate billing reconciliation). These are increasingly common under the mature 2026 OTS as providers have refined their integrations. However, performance varies meaningfully by provider, and a meaningful minority of switches still require behind-the-scenes intervention to complete - the topic of the April 2026 consultation outcome covered later in this guide.

The TOTSCo Hub: technical mechanics

The One Touch Switching Company (TOTSCo) is the industry-funded not-for-profit organisation that operates the TOTSCo Hub, the central messaging platform that all UK residential fixed-line broadband and voice providers use to coordinate switching messages. TOTSCo is owned by its members (the participating communications providers) and exists solely to deliver and operate Ofcom's OTS solution. The Hub itself is a structured electronic messaging system rather than a customer-facing platform; consumers never interact with TOTSCo directly, but every UK residential fixed-line broadband or voice switch under OTS passes through the Hub.

The Hub itself uses a structured electronic messaging protocol with specific message types for each step of the OTS process: Match Requests (gaining provider asks Hub to identify the losing provider for a stated address and provider name), Match Responses (losing provider confirms or declines the match within 60 seconds), Switch Order Trigger Requests (gaining provider authorises the agreed activation date), Switch Order Trigger Acknowledgements (losing provider confirms receipt), Outage Notifications (providers flag system issues that may affect switches), and various error codes and confirmation messages. The protocol is documented in the TOTSCo Industry Process specification and updated periodically as the system matures.

For the customer-facing user experience, the Hub's role is largely invisible: the customer interacts only with the gaining provider, and most switches complete within the standard 10-14 working day window without any visible Hub-related issues. However, the Hub provides extensive diagnostic data when problems do occur, which is useful both for individual customer disputes (the Hub records can show exactly which messages were sent, which were received, and what error codes were returned) and for industry-level monitoring (where the consultation outcome covered later in this guide is making increased use of Hub data to identify systemic performance issues).

OTS performance to date: the 2025 and 2026 data

OTS has matured substantially since launch with strong volume growth, improved match rates, and consistent Hub uptime. However, performance is not uniform: a meaningful minority of switches still require manual intervention or multiple match-request retries to complete, and feedback to TOTSCo's April 2026 consultation showed that performance issues are concentrated among a small number of providers rather than being industry-wide.

The volume figures are unambiguously strong: nearly 2 million UK consumers have now used OTS, and the system is processing approximately 1.8 million switches per year at maturity. By comparison, the legacy NoT+ process handled significantly lower volumes in its final years with substantially more friction; OTS is clearly delivering on its core volume objective of making UK broadband and voice switching genuinely simple at scale.

The match-rate figures tell a more nuanced story. TOTSCo CEO Paul Bradbury reported in 2025 that the address-match rate had risen from approximately 60 percent at launch to approximately 67 percent through the first year as providers refined their address-matching logic and customer-detail validation. However, BT's published response to TOTSCo's April 2026 consultation showed that approximately 32 percent of BT's successful switches still required two or more match-request retries, indicating that even where switches eventually complete, behind-the-scenes intervention is often required. BT's response noted that customer service agents have learned to make subsequent attempts with slight changes to the match information when an initial request fails - a pragmatic workaround that gets switches done but is "time consuming and can lead to a poor customer experience" in BT's own words.

Switching performance also varies by provider type and customer journey. Customers initiating switches through agent-assisted channels (phone or chat) benefit from agents who can manually retry failed matches; customers initiating switches through fully online sign-up flows do not have this fallback and are more likely to experience visible match failures. TOTSCo's April 2026 consultation outcome flagged this as an area requiring industry-wide improvement, with proposals to standardise online sign-up resilience across providers.

The April 2026 consultation outcome and Monitoring and Improvement plan

TOTSCo's most significant 2026 development is the April 2026 publication of the consultation outcome on improving OTS performance, building on the March 2026 industry consultation (Bulletin 104) and Bulletin 109's user responses. This sets out a structured Monitoring and Improvement (M and I) programme focused on identifying and addressing the residual performance issues that affect a meaningful minority of switches, even though the system as a whole is operating successfully.

TOTSCo's consultation outcome also identified two issue categories that fall outside its remit and that may require Ofcom intervention to address: Leakage (where providers offer non-OTS switching journeys when a successful match cannot be obtained, effectively bypassing the standardised OTS process) and Non-participation (where some providers are not registered on the live TOTSCo directory and are therefore unable to offer OTS journeys at all). Both issues are particularly concerning because they undermine the universal applicability that OTS was designed to deliver. TOTSCo's April 2026 outcome flagged these for Ofcom's attention.

The OTA2 (Office of the Telecommunications Adjudicator) One Touch Switch Matching Review Report, commissioned by Ofcom and prepared by OTA2 and published in mid-2025, identified three key recommendations for communications providers to improve OTS matching success rates: (1) review their OTS implementations to ensure full compliance with the OTS process and appropriate Best Practice; (2) analyse their live matching performance in both gaining and losing journeys, and collaborate with as many other providers as possible to identify root causes and resolve them; and (3) consider improving their monitoring, reporting, and diagnostic capability to improve their ability to identify root causes of failure and fix them. TOTSCo's April 2026 plan operationalises these OTA2 recommendations through structured industry-wide programmes.

The match-rate challenge: why some switches need retries

The technical core of every OTS switch is the address-matching process: the gaining provider's Match Request must successfully identify the customer's existing service in the losing provider's records, so the losing provider can return accurate Switching Information. Address matching has proven to be the single biggest operational challenge in OTS implementation across all providers, and it is the focus of much of the April 2026 Monitoring and Improvement plan.

BT's published response to TOTSCo's April 2026 consultation gave the most detailed publicly-available account of how providers handle match failures in practice. BT reported reviewing a range of successful switches from the previous 6 months and identifying that approximately 32 percent of successful switches required two or more match requests; BT's customer service agents have developed practical workarounds where they manually adjust the match information when an initial request fails (slight changes to address format, provider name standardisation, account name variations). BT noted that this workflow is "dependent on agent knowledge" and that "customers trying to initiate OTS through an online sign-up journey would not be aware they can change [the match details]" - a structural weakness that the April 2026 plan is intended to address.

For consumers placing OTS orders, the practical implications of the match-rate challenge are: (1) Address-matching errors are the most common cause of OTS delays. If you've recently moved house, live in a new-build, or know that your address is sometimes recorded in unusual formats, this is the most likely friction point. (2) Agent-assisted sign-up channels (phone or chat) are more resilient to match failures than fully online sign-up flows because agents can manually retry with adjusted match information. (3) If you receive a notification that a match could not be obtained, providing additional address details (alternate format, full postcode confirmation, account holder name variations) usually resolves the issue within 1-2 working days.

Provider-specific OTS performance and behaviour

OTS performance varies meaningfully across UK communications providers, with consultation responses to TOTSCo's Bulletin 109 (April 2026) confirming what industry observers had previously noted: a small number of underperforming providers account for a disproportionate share of OTS issues, while the majority of providers operate the OTS process reliably for the overwhelming majority of switches. The named consultation respondents (BT, Community Fibre, Highland Broadband, NowYoYo, Sky, Truespeed, Virgin Media O2, VodafoneThree, WightFibre) are broadly the providers with the most active OTS implementations and strongest engagement with industry improvement work.

From a customer perspective, OTS now works reliably across all major UK providers in 2026, but the experience can vary in subtle ways. Sky's distinctive customer-friendly policies (31-day cooling-off; penalty-free exit on mid-contract price rises regardless of original contract terms) make Sky a notably consumer-friendly choice when you may want flexibility to leave. BT, Vodafone, and TalkTalk follow the Ofcom statutory minima closely. Virgin Media's cable-network integration has historically been the most complex OTS scenario but works reliably under 2026 OTS. Most altnets perform well via their MAP integrations although some smaller altnets occasionally see Hub-related issues that take 1-2 days to resolve.

What OTS does NOT cover: mobile, bundles, moves

OTS covers all UK fixed-line residential broadband and voice services, but there are three notable categories where OTS does NOT apply, and customers in those categories still need to manage the switch directly with the old provider. These exclusions are not regulatory oversights - they reflect genuine technical or commercial constraints that make a residential-style automated switch process impractical. However they are also commonly missed by customers expecting a uniform OTS experience for all switches.

For UK consumers, the home-moves exclusion is the single most common practical surprise. Many people assume that switching providers when moving home will work the same way as a switch within an existing property, but it doesn't - moving home requires direct cancellation with the old provider and a fresh order with the new (or same) provider at the new address. Plan ahead: contact your current provider 4-6 weeks before move-in to discuss options, and place any new order in advance so the new service can activate within a few days of moving in.

For mobile broadband switches, the practical workflow is: place the order with the new provider; receive any router or SIM by post; contact the losing provider directly to confirm cancellation date and any equipment-return requirements; ensure the cancellation aligns with the new service activation to avoid double-billing. Three 5G Home Broadband's rolling 30-day contracts make these switches particularly easy because there is no early-termination consideration; longer-term mobile broadband contracts may have early-termination fees that need to be factored in.

Compensation under OTS: General Conditions C7.47-C7.49

Ofcom's automatic compensation regime under General Conditions C7.47-C7.49 requires UK broadband providers to compensate customers automatically (without a customer claim being required) when service standards are not met during OTS-related switching, repair, or installation processes. The 2026 compensation rates are uprated annually with inflation; current figures are published by Ofcom on its compensation pages.

Compensation under the Ofcom regime is automatic - you do not need to claim it, and the provider must pay it without prompting. Compensation is typically applied as a credit on your next bill rather than as a cash refund. If your provider fails to pay compensation that is due to you, you can complain through the provider's formal complaints process and (if not resolved within 6 weeks under the new April 2026 deadlock window, reduced from the previous 8 weeks) escalate to either the Communications Ombudsman or CISAS, depending on which scheme your provider is signed up to.

OTS-related compensation under General Conditions C7.47-C7.49 is somewhat distinct from the broader automatic compensation regime: it specifically applies where a provider's failure to comply with OTS obligations causes consumer harm. This includes situations where the customer had to contact the losing provider directly to action a switch (because the gaining provider's TOTSCo Hub integration was broken or because the losing provider failed to respond within the 60-second window); where the OTS Switching Information Notification was substantially delayed beyond 5 working days; or where bundle-related service failures occurred because of OTS process gaps. The wider automatic compensation regime then handles the £6.24/£6.24-£9.33/£31.19 cases for delayed activation, total loss of service, and missed engineer appointments.

Business OTS launching during 2026

UK business broadband switching has historically required direct coordination with both providers because business connections often have different speed tiers, contract lengths, hardware bundles, service level agreements, and other complexities that make a residential-style switch process challenging. TOTSCo's separate Business OTS programme (running in parallel with the established residential OTS) has been in active development since 2024 and is expected to launch fully during 2026, bringing the residential OTS benefits to UK businesses for the first time.

For UK businesses planning to switch broadband in 2026, the practical timeline is: until Business OTS launches fully, manage switches with both providers directly; read your existing business contract carefully (notice periods are often longer than residential, typically 30 or 60 days); start the switching process 60-90 days before your preferred switch date; ask the new provider whether they can run parallel services during the cutover (critical for businesses where downtime has revenue impact); confirm any multi-site implications before placing the order. Once Business OTS launches fully (expected during 2026), this will simplify substantially for standard business broadband.

OTS pricing: 28p in 2026 and the path to 2027 reductions

TOTSCo's residential OTS unit price is 28p per switch held throughout 2026. This is paid by the gaining provider for each successful switch processed through the TOTSCo Hub; ultimately customers pay this through their broadband bills although the cost is small relative to typical UK broadband package pricing (a 28p per-switch cost on an annual switching cycle adds approximately 2.3p per month to the cost of broadband for an average customer who switches every two years).

The pricing structure reflects TOTSCo's not-for-profit industry-funded model: it exists to recover the cost of developing and operating the Hub plus modest ongoing surplus to fund continuous improvement work, but is not designed to generate profit beyond that. The transparent pricing trajectory (held at 28p for 2026, reductions anticipated from 2027) is a notable feature compared with many comparable industry-wide infrastructure platforms and reflects the consultative approach TOTSCo has taken to industry engagement.

OTS versus the legacy Notification of Transfer process

OTS replaced two main legacy switching processes that had grown unfit for the modern UK broadband market. Understanding what changed helps explain both why OTS is so much better than what came before, and what residual issues remain that the April 2026 Monitoring and Improvement plan is designed to address.

The most significant practical improvement of OTS over the legacy regime is the elimination of multi-day service gaps during cross-network switches. Under the pre-OTS regime, customers commonly experienced 2-5 days of total service loss when switching between Openreach and Virgin Media (or vice versa) because the old service had to be disconnected before the new service could be activated. Under OTS, both lines often run in parallel during the install period for cross-network switches, so cutover-day downtime is often zero. This is particularly important for households where home working depends on continuous connectivity.

Common OTS issues and how to resolve them

The vast majority of UK 2026 OTS switches go through smoothly within the agreed timeline. However, when issues do occur, knowing how to recognise and resolve them quickly avoids unnecessary frustration and ensures you receive any automatic compensation that may be due under General Conditions C7.47-C7.49.

Switching Information Notification not received within 5 working days

Contact the gaining provider to chase. Common causes: TOTSCo Hub address-matching errors (the most frequent issue); incorrect current-provider name on the order; technical TOTSCo Hub integration issues with smaller providers. Resolution: provide updated address details to the gaining provider; allow another 1-2 working days for re-matching; if still unresolved, complain via the gaining provider's complaints process. Most issues resolve within a few additional days once flagged.

Match Request fails repeatedly

If the address-matching process fails, the gaining provider's customer service team can often manually adjust the match information (alternate address format, provider name standardisation, account name variations). This is the standard workaround that BT's published consultation response described in detail. If you placed the order through a fully online sign-up flow, contact the gaining provider's customer service team by phone or chat - agents have access to manual retry tools that the online sign-up flow may not expose.

New service activates but old service does not disconnect

Under OTS the losing provider should disconnect the old service on the same day the new service activates. If the old service is still being billed, this is an OTS process failure that typically entitles you to compensation under General Conditions C7.47-C7.49. Contact the losing provider directly with proof of new service activation; insist on backdated cancellation to the new service activation date; document all communication for any subsequent compensation claim.

Cross-network engineer install missed or delayed

For cross-network switches, an engineer install is typically required. If the engineer misses the agreed appointment, automatic compensation of £31.19 per missed appointment applies. If the install is delayed past the originally agreed activation date, automatic compensation of £6.24 per day delayed activation applies until the service goes live. Document the originally agreed dates, the actual dates, and any communication from the provider.

Bundle elements not cancelled correctly

If you switched broadband under OTS but a bundled TV or mobile element was supposed to remain or supposed to cancel and the bill the following month doesn't reflect this, raise it promptly with the losing provider. Common cause: OTS handles the broadband element correctly but bundle metadata in the losing provider's billing system was not updated. Most cases resolve within 1-2 weeks once flagged.

Provider not on the live TOTSCo directory

If the gaining provider tells you that the losing provider is not on the live TOTSCo directory, this is the "Non-participation" issue TOTSCo flagged in its April 2026 consultation outcome. Workaround: the gaining provider may offer a non-OTS switching journey ("Leakage") which gets the switch done but bypasses the standardised OTS process. This is a known gap that TOTSCo has flagged for Ofcom intervention; report it to the gaining provider's complaints team and consider raising it with Ofcom directly as part of broader regulatory engagement.