Referral codes for UK finance apps are one of the few genuinely good deals in personal finance, but a lot of people either don't bother using them or don't know how to get their own code seen. This is a plain-English breakdown of how they work and what's actually worth doing.
What is a referral code?
When you sign up to most UK finance apps - investing platforms, savings apps, mortgage tools - you get a unique referral code or link. If someone else signs up using your code and meets the conditions (usually making a deposit or completing a trade within a set period), both of you get a bonus.
The bonus varies a lot depending on the app. Some pay cash directly into your account. Others give you a free share in a randomly selected company. A few are worth real money - Trading 212's free share promotion has paid out shares worth well over £100 to some users - while others are more modest. It's worth checking before you sign up rather than assuming it'll be significant.
How the bonus actually reaches you
The process is roughly the same across most apps. The new user signs up using your code during registration, completes a qualifying action (usually a deposit above some minimum within a set number of days), and then both accounts get credited with the reward. That last step typically takes anywhere from a few days to a few weeks depending on the platform.
The reward goes directly between you and the person you referred. ReferralBank doesn't receive anything when a code is used - we just connect the people.
What to check before using a code
A few things are worth verifying before you commit. Most referral bonuses have qualifying conditions - minimum deposit amounts, timeframes, specific account types that are eligible. Always check the current terms on the product's own website before signing up, because these change regularly and sometimes without notice.
On the code itself: codes on ReferralBank are reviewed before going live, which cuts down on dead listings, but a code being valid last week doesn't guarantee it's still active today. If it doesn't apply at checkout, check the product's own referral page directly.
It's also worth double-checking which account type qualifies. Some referral bonuses only apply to individual accounts, not ISAs, or to standard accounts rather than pensions. Easy to miss and annoying to discover after the fact.
Getting your own code seen
If you have a referral code and want it used, a few things make a real difference.
Submitting to ReferralBank puts it into the daily rotation. Every approved code gets a fair turn at the top of the list - you don't need to be first or pay for placement. When your code reaches the top spot for the day, you'll get an email. That's the time to share the product page, because your code is the first thing anyone visiting will see.
One small thing: most apps give you a full sign-up URL as well as a short code. A link people can click is always easier than a code they have to type in manually.
Is it worth the effort?
If you're already planning to open an account somewhere, using a referral code is a straightforward win. You get a bonus for something you were going to do anyway, and someone else gets a reward for pointing you there.
For people sharing codes, the returns depend on the app and how much you can drive traffic to your code. A single Trading 212 referral can be worth a lot if the free share lands well. Most apps don't cap referrals, so if you're recommending something you genuinely use, it can add up over time without much effort.