What Are Banking App Sign-Up Bonuses? A Complete Guide
Banking sign-up bonuses are promotional rewards from UK banks and fintech apps for opening a new account. You've probably seen offers from Monzo, First Direct, NatWest, and others, typically £5 to £10 free cash just for signing up.
It's not a scam or a catch. Banks would rather pay you to try their app than spend thousands on adverts.
In this guide, you'll learn:
- Why banks pay you to sign up
- How referral bonuses actually work
- Whether it affects your credit score
- What the sign-up process involves
It comes down to simple maths.
Traditional advertising costs banks £50 to £150 per new customer. A Facebook ad campaign, TV spots, tube posters. It all adds up. But a £5 or £10 referral bonus? That's a bargain.
The UK has one of the most competitive digital banking markets in the world. Challenger banks like Monzo, Lloyds, and Nationwide are all fighting for the same customers. Referral schemes are their most cost-effective weapon.
From a bank's perspective, you're not just worth £10. Over your lifetime as a customer, they earn money through:
- Interchange fees – every time you tap your card
- Interest margins – on your deposits
- Premium upgrades – paid account tiers
- Loans and overdrafts – if you ever need credit
A £10 welcome bonus is a small investment for what could be years of transaction fees. They're betting you'll stick around.
Most banking sign-up bonuses use a refer-a-friend model:
- Someone shares their referral link – could be a friend, family member, or someone online
- You sign up using that link – the bank tracks that you came from a referral
- You meet the bonus criteria – usually just verifying your ID or making a small deposit
- Both of you get rewarded – you get your bonus, they get a referrer reward
The criteria vary by bank. Some just need you to verify your identity. Others ask you to deposit £1 or make a purchase. Each offer spells out exactly what's required.
What about referral limits?
Most banks cap how many people you can refer (usually 5-10 per year). And they have systems to detect abuse, so no, you can't just create fake accounts.
Looking for larger bonuses? Bank switching offers through the Current Account Switch Service (CASS) typically pay £100 to £200, but they involve moving your entire current account. See our bank switching guide for more on that.
Let's address the common concerns.
Will it affect my credit score?
No. Opening a standard bank account triggers a "soft" credit check only. Soft checks don't appear on your credit file and don't affect your score.
You'd only face a "hard" check if you applied for an overdraft, credit card, or loan, which isn't required to claim sign-up bonuses.
Are these banks legitimate?
All UK banks offering sign-up bonuses are authorised and regulated by the Financial Conduct Authority (FCA). Yes, even the ones with the trendy apps and hot coral cards. You can verify any institution at fca.org.uk/register.
Monzo, First Direct, and NatWest are all fully licensed banks with the same regulatory requirements as Barclays or HSBC.
What about my deposits?
Deposits up to £85,000 are protected by the Financial Services Compensation Scheme (FSCS). This applies to all properly authorised UK banks, including the challenger banks.
Do I have to pay tax on bonuses?
Sign-up bonuses count as miscellaneous income. Most people can earn up to £1,000 tax-free under the Trading Allowance. If you earn more than that from bonuses and side income combined, you'd need to declare it through Self Assessment.
For most people doing a handful of offers, it's not a concern.
The process is similar across most digital banks:
1. Download the app
Most offers are mobile-only. You'll download from the App Store or Google Play.
2. Enter your details
Name, address, date of birth, the usual. Some apps pre-fill this if you've stored it on your phone.
3. Verify your identity
This is the bit that takes longest (usually 5-10 minutes). You'll photograph your ID (passport or driving licence) and often take a selfie for facial matching. Top tip: good lighting makes a difference. I've had a few rejections from dodgy photos taken in dim rooms.
4. Wait for approval
Most apps approve instantly. Some take 1-3 days for manual review.
5. Meet the bonus criteria
Read what's required. It might be just completing verification, depositing £1, or making a purchase on your new card.
6. Receive your bonus
Usually credited within a few days of meeting the criteria. Some banks pay instantly.
The whole process takes 10-15 minutes per account, with most of that time spent on ID verification.
Now you understand how banking sign-up bonuses work, you might be wondering how to actually make money from them.
See our complete guide to making money from banking app sign-ups for current offers, step-by-step instructions, and exactly how much you can earn.