March 2026 Mobile and Energy Price Rises: How to Calculate Exit Costs and Switch Providers

Why March Marks Price Rise Season

March typically signals the start of annual price increases across mobile, broadband, and energy providers. This year brings significant changes, with major mobile networks implementing fixed pound increases from late March following Ofcom's January 2025 ban on percentage-based rises for new contracts.^[5]

For households already managing winter heating costs, these increases can feel particularly unwelcome. However, understanding exactly what you'll pay and when gives you the power to make informed switching decisions.

Mobile Contract Price Increases for 2026

The mobile landscape has shifted dramatically. Where providers previously used inflation-linked increases (like CPI + 3.9%), most now apply fixed monthly rises that are easier to predict and compare.

What Each Provider Is Charging

Here's what major networks are implementing from late March 2026:

Three UK introduces tiered increases from 1 April 2026: £1.80 for low data plans (4GB or less), £1.90 for mid-tier (5-99GB), £2.30 for high data (100GB+), and £3.50 for home broadband. These affect customers outside their minimum term who joined before 7 September 2024.^[1][3]

O2 contract price rise amounts to £2.50 monthly from April 2026 on certain plans, though this represents increases of up to 22% on lower tariffs.^[10]

BT mobile contract price rise varies by service: £1.50 for SIM-only plans and £4 for handset plans from 31 March 2026.^[4] Their broadband customers face £4 increases (broadband only) or £6 (with TV).^[2][7]

EE applies different rates depending on your contract start date and service type from 31 March 2026. Examples include £2.50 for SIM-only plans from 31 July 2025, £1.50 for earlier handset plans, and up to £4 for newer broadband packages.^[4]

Interestingly, Virgin Mobile contract price rise won't hit until April 2027, giving their customers an extra year before facing £4 monthly increases on bundled packages.^[2]

Broadband Price Changes Across Providers

Broadband price rises vary significantly by provider and package type. Here's what to expect:

If you're considering switching from Virgin Media to Sky, note that Virgin's increases don't take effect until 2027, while Sky's £3 rise begins 1 April 2026. Factor this timing into your comparison calculations.^[2]

Energy Price Rises and Switching Strategy

While March 2026 aligns with typical annual energy tariff adjustments, the key is understanding how to evaluate switching opportunities that emerge after price changes take effect.

How to Switch to Octopus Energy

Octopus Energy has built a reputation for smooth switching processes. To switch, sign up online or via their app, provide your MPAN (electricity) and MPRN (gas) numbers from a recent bill. They handle the transfer process, which typically takes 5-10 days, and often match any credit balance from your previous supplier.^[8]

Octopus stands out for green energy options, offering 100% renewable tariffs and innovative time-of-use pricing that can significantly reduce bills for flexible users.

How to Change to EDF

EDF's switching process involves comparing tariffs on their website, selecting your preferred option, and confirming eligibility. They offer strong dual-fuel bundles and green options like their 100% renewable Tracker tariff. Their solar buyback schemes can benefit households with solar panels.^[8]

Understanding OVO Electricity Prices

OVO focuses on competitive variable and fixed tariffs, though specific 2026 pricing varies by region and usage. They emphasise green add-ons like tree-planting credits and community energy projects. Their usage-based pricing can work well for households with predictable consumption patterns.^[8]

Calculating Your Exit Costs

Before switching, you need to understand what leaving will cost. Here's how to calculate accurately:

Check your contract end date via your provider's app or online account. Early exit fees apply during your minimum term but disappear once you're out of contract.^[5]

Use exit fee calculators provided by your current provider, or contact them directly. Typically, fees equal the remaining monthly payments minus any discounts you'd lose by leaving early.

Time your switch carefully. If you're already out of contract, switching carries no penalties. If you're mid-contract, calculate whether monthly savings from a new deal will recover the exit fee within a reasonable timeframe (usually 3-6 months).

Comparing Like-for-Like Deals

Effective comparison requires matching your actual usage patterns and needs:

For energy: Use Ofgem-regulated comparison sites like Uswitch or MoneySuperMarket. Input your postcode and actual kWh usage from recent bills. Check whether dual fuel best tariffs offer genuine savings over separate gas and electricity contracts.^[8]

For mobile: Compare data allowances, call minutes, and network coverage in your area. Factor in any device finance remaining on your current contract.

For broadband: Consider download speeds, data limits, and any TV or phone bundle requirements. Installation costs and setup credits can significantly affect first-year value.

Timing Your Switch to Avoid Service Gaps

Poor timing can leave you without service or paying double bills. Here's how to avoid both:

Energy switching: Request a final meter reading on your last day with your old supplier. Select supplier-handled transfer rather than managing it yourself. The maximum gap between suppliers is 28 days, though most complete within a week.^[5]

Mobile switching: Port your number during the switch to maintain service continuity. Give required notice (usually 30 days) to avoid your contract auto-renewing.

Broadband switching: Book engineer installations for your first available day after your old service ends. Some providers like Sky offer overlap protection to ensure continuous service.

Services like Lodo can handle the switching process for you, managing timing and paperwork to avoid these common pitfalls while ensuring you get the best available deal.

Green Energy Options Worth Considering

If environmental impact influences your choice, several providers offer compelling green energy options:

Octopus Energy provides 100% renewable electricity and agile tariffs that reward using energy when renewables are most available. EDF offers renewable tracking and comprehensive solar buyback programs. OVO focuses on carbon-neutral supply with community energy investments.^[8]

These green tariffs often prove competitive on price while supporting renewable energy development.