Best UK referral codes and sign-up bonuses (2026)
4 min read · Updated · By the HelloBonus team
The short answer
The UK sign-up bonuses we've checked right now are: Monzo (up to £50, £10 for 94 people in 100, for opening a free account and making one card payment), TopCashback (£10 once you've earned £10 of cashback), Forest (30 free e-bike minutes in London), Lime (£4 ride credit), Voi (free ride credit, £2.50 in Voi's UK guide) and GAIL's (a free drink or loaf with your first order). All are free to join, and each has its own page with the full rules and the date we checked them.
All our codes at a glance
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| Brand | Your reward | What you do | Time limit | Verified |
|---|---|---|---|---|
| Monzo | £10 for most people, £20 or £50 for a lucky few | Open an account, add any amount, make one card payment | 30 days from entering your phone number on the invite page | |
| TopCashback | £10 sign-up bonus, paid by bank transfer | Join through our link, confirm your account, then earn £10 of cashback at eligible shops | 180 days from joining to reach £10 of approved cashback | |
| Forest | 30 minutes of free riding time | Type the code at sign-up, then take your first ride | Referral minutes are valid for 7 days | |
| Lime | £4 ride credit, shown as a coupon in the app | Create a new account through our link, then take a ride | Coupons expire 60 days after you get them | |
| Voi | Free ride credit, added when you sign up (£2.50 in Voi's UK guide) | Sign up through the link and add your own payment method | None stated. Voi can change or cancel unused credit at any time | |
| GAIL's | A free barista-made drink or loaf of your choice | Type the code when you sign up, then buy something in a bakery | Use the voucher within two months |
Quickest to claim
- Voi: ride credit is added as soon as you sign up through the invite link and add your own payment method.
- Monzo: open a free account, add any amount and make one card payment within 30 days.
- GAIL's: type the code when you create your account, then use the voucher with your first paid order in a bakery.
Best for money back
Monzo pays the reward into your account: £10 for 94 in 100 people, £20 for 5 and £50 for 1, and the person who invited you gets the same. TopCashback adds a £10 bonus once you've earned £10 of approved cashback within 180 days. That's on top of the cashback itself, and you withdraw it by bank transfer.
Best for getting around London
Forest gives 30 free e-bike minutes after your first ride (use them within 7 days). Lime gives a £4 ride credit that lasts 60 days, and Voi adds free credit when you sign up. They're separate apps, so you can join all three. Our guide to free e-bike rides in London compares them side by side.
Check these before you sign up
- Most offers are for brand-new customers only, even if your old account is closed.
- Open the invite link first, or type the code while you sign up. Many brands can't add it afterwards.
- Note the time limit: 7 days for Forest's minutes, 30 days for Monzo's steps, 180 days for TopCashback's £10.
- Use one code per brand. Brands give one welcome reward per new customer.
- Rewards change. Each of our pages shows the date we last checked it.
How we choose and check these codes
Every code here is from an account we really hold, and every fact comes from the brand's own terms, help centre or app. We show the full reward (the top amount, the typical amount and the brand's own odds), and we check every live code by hand every day. Our How we check page explains the full process.
Codes we've checked
Questions people ask
What is the best referral code in the UK right now?
It depends on what you need. For cash, Monzo pays up to £50 (£10 for 94 people in 100) for opening a free account and making one card payment. For London travel, Forest's 30 free e-bike minutes give the most riding time of the offers we've checked.
Can I use more than one of these codes?
Yes, as long as they're for different brands. Each brand gives one welcome reward per new customer, so you can join Monzo, TopCashback and Forest, for example.
Do referral codes cost me anything?
No. All of these are free to join, and the brand pays the reward. Some need a small first action, like one card payment or a first order.
How often is this list updated?
Every code shows the date we last checked it against the brand's terms, and we check every live one by hand every day. We add new codes only after we've opened the account ourselves.
Want to know how we verify every bonus? Read our checking process.