Best UK Utilities Sign-Up Offers (2026)

Most UK utility providers — energy, broadband, mobile, TV — have some kind of sign-up offer or switching bonus. Since you’re paying for these services anyway, it’s worth checking what’s available before you renew or switch.

I’ve listed the current offers below. A lot of these work particularly well when combined with cashback sites — you can often get cashback on top of the provider’s own welcome deal.

Best UK Utilities Sign-Up Offers

Compare current welcome bonuses and switching deals from energy, broadband, mobile and TV providers.

All Offers

Showing 15 of 15 offers · Updated 4 Apr 2026

Featured 1

Octopus Energy

Utilities

Your Reward £50 bill credit

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Verified 4 Apr 2026

Octopus Energy are now the largest gas and electricity supplier in the UK. To make switching to Octopus a bit more appealing, they offer customers a £50 bill credit when signing up with a friends referral link . Once signed up, you can recommend your friends to split £100 with them too (£50 each)!

Featured 2

Voxi

Utilities

Your Reward £10-£20 cash

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Verified 4 Apr 2026

VOXI is a flexible UK mobile network with unlimited social media data on all plans. Sign up through a referral link to earn Gift Card rewards after making 2 monthly payments. Plans start from £10/month with no credit checks or long contracts. Once you're a customer, refer friends to earn up to £40 each (during Double Rewards promotions) or £15-£20 typically. 18+ UK only. European roaming available via paid passes.

3

BeFibre

Utilities

Your Reward £50 cash bonus

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Verified 4 Apr 2026

BeFibre is a UK full fibre broadband provider with speeds up to 2300 Mbps. New customers get £50 cash when purchasing a 12m/18m package via referral. Paid within 60 days after 30-day guarantee period. Referrers earn £50-£150 per referral depending on total referrals. No mid-contract price rises. UK only.

4

British Gas

Utilities

Your Reward £50 gift voucher

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Verified 4 Apr 2026

British Gas is one of the UK's largest energy suppliers and home services providers. New customers switching both gas and electricity via referral get £50 in vouchers. New boiler customers get £100 voucher (Amazon/PayPal) or £50 Hive voucher. Refer a friend to get same reward! UK only.

5

Community Fibre

Utilities

Your Reward £50 gift card

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Verified 4 Apr 2026

Community Fibre is a UK full fibre broadband provider. New customers get a £50 gift card when signing up via referral and staying past 14-day cooling-off period. Referrers also get £50. Gift cards sent 90 days after installation. Must not have had service in past 12 months. 18+ UK only.

6

EDF Energy

Utilities

Your Reward £50 bill credit

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Verified 4 Apr 2026

EDF Energy is a UK energy supplier offering gas and electricity tariffs. Both referrer and referee get £50 credit on their EDF accounts when a new customer switches via referral link. Available for home and Small Business customers. Must switch and stay with EDF to qualify. 18+ UK only.

7

Eon Next

Utilities

Your Reward £50 gift card

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Verified 4 Apr 2026

E.ON Next is a UK energy supplier offering gas and electricity tariffs. Both referrer and referee get £50 (voucher or account credit) when new customer switches via referral link and completes first month's Direct Debit. Reward issued within 4 weeks. Referrer limited to 25 referrals or £1,500/year. 18+ UK only.

8

GiffGaff

Utilities

Your Reward £5 credit

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Verified 4 Apr 2026

giffgaff is a UK mobile network running on O2. Both you and your friend get £5 when they activate a SIM via referral. You receive £5 Payback (convertible to cash, credit, or charity donation). Friend gets £5 credit plus free giffgaff-to-giffgaff calls/texts. Payback paid every 6 months. 18+ UK only.

9

Good Energy

Utilities

Your Reward £50 discount

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Verified 4 Apr 2026

Good Energy is a UK renewable energy supplier with 100% renewable electricity matched directly from generators. Switch and get £50 credit. They also offer solar panels, heat pumps, and battery storage. Referrers earn £50 for tariff referrals or up to £250 in vouchers for product referrals. UK only.

10

Sky

Utilities

Your Reward £100 gift voucher

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Verified 4 Apr 2026

11

Smarty

Utilities

Your Reward £10 gift voucher

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Verified 4 Apr 2026

12

So Energy

Utilities

Your Reward £50 credit

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Verified 4 Apr 2026

13

Three

Utilities

Your Reward £40 cash

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Verified 4 Apr 2026

14

Virgin Media

Utilities

Your Reward £50 gift voucher

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Verified 4 Apr 2026

15

YouFibre

Utilities

Your Reward £25-£100 cash

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Verified 4 Apr 2026

Get up to £100 when you sign up to You Fibre broadband on an 18 month contract

How to Get the Best Deal

Compare the actual tariff first. The sign-up bonus is a nice extra, but the monthly cost is what matters long-term. Use comparison sites to check you’re getting a competitive rate, then look for the best sign-up offer on top.

Check cashback sites before switching. TopCashback and similar sites often pay £30-£100+ for switching energy, broadband or mobile. This stacks with the provider’s own welcome offer in most cases.

Referral links beat going direct. Many providers give both you and the referrer a bonus when you sign up through a referral link. The offers in the table above use these where available.

Time your switches. The best time to switch is when your current contract ends — you’ll avoid early exit fees and have the most bargaining power. Set a reminder a month before your contract expires.

What Types of Offers Are Available?

Energy suppliers like Octopus Energy, OVO and British Gas run referral bonuses (typically £50-£100 credit each) when you switch. Some also offer smart meter bonuses or fixed-rate deals. Use the Octopus Energy Tracker to compare tariffs.

Broadband providers compete aggressively for new customers — cashback offers, free setup, or gift cards are common when switching. The best deals usually appear when your current contract is ending.

Mobile networks offer cashback, free data boosts, or discounted first months. Pay attention to whether the offer is for SIM-only or contract, and check what happens to the price after any introductory period.

TV and streaming services regularly run free trial periods or bundled deals with broadband. Worth checking if your broadband provider offers a cheaper bundle before signing up separately.

Before You Switch

Check your current contract. Switching mid-contract usually means paying an early exit fee. Make sure the saving from switching outweighs any penalties.

Note what’s included. A cheaper broadband deal might have slower speeds or data caps. A cheaper energy tariff might be variable rate. Read what you’re actually signing up for.

Keep proof of the offer. Screenshot the deal before you sign up. If a welcome bonus doesn’t appear, you’ll need evidence of what was promised.