Curve Referral Code UK: Get 1% Cashback Free for 30 Days

Curve Referral Deal at a Glance

• Bonus: 1% cashback on all spending for 30 days (capped at £15 in Curve Cash)
• Promo Code: KNV4K36D (applied automatically via referral link)
• Eligibility: New UK customers aged 18+, must make 5 transactions of £2+
• Cost: Free — no subscription required for the basic Curve Pay plan
• Both sides benefit: Yes, referrer and referee both get 30 days of 1% cashback
• Verified March 2026 • FCA Authorised (Ref: 900926)

About This Offer

Curve Pay is the only mobile wallet that lets you combine all your bank cards into one smart card and app. When you sign up using our referral link, you get an introductory bonus: 1% cashback on all your spending for 30 days, capped at £15 in Curve Cash Points.

This cashback stacks on top of any rewards your underlying bank cards already give you. To qualify, you need to make at least 5 transactions of £2 or more during your first 30 days.

Terms apply. New customers only.

Enter Curve Promo Code

If asked for a referral code during sign-up, use code KNV4K36D. Clicking the referral link above usually applies this automatically, but you can copy and paste the code manually if needed. The code is not case-sensitive.

What Is Curve Pay?

Curve Pay (formerly just Curve) is a smart card and app used by over 4 million people. It combines all your debit and credit cards into one. You carry just one Curve card or use Apple Pay and Google Pay, but you can spend from any linked account via the app.

Curve is an authorised Electronic Money Institution regulated by the Financial Conduct Authority (FCA reference number 900926). In November 2025, Lloyds Banking Group announced the acquisition of Curve, which is expected to complete in the first half of 2026. Curve continues to operate independently in the meantime.

How to Claim Your Curve Referral Bonus

Follow these steps to claim your 1% cashback bonus. The process takes less than 5 minutes:

• Click the referral link: Tap the green button above to visit the Curve sign-up page.
• Download the app: Install Curve Pay from the App Store or Google Play.
• Create your account: Sign up and verify your identity. If prompted, enter referral code KNV4K36D.
• Link a card: Add at least one valid debit or credit card to your Curve wallet.
• Make 5 purchases: Spend at least £2 per transaction using your Curve card (physical or digital via Apple Pay / Google Pay).
• Earn cashback: You will receive 1% cashback on all spending for 30 days, capped at £15 in Curve Cash.

Key Curve Pay Features

• Go Back in Time: Switch which card paid for a transaction after the fact. Free plan gives you 30 days and 3 transfers per month; paid plans extend up to 120 days with unlimited transfers.
• Fee-free foreign spending: Get interbank exchange rates on weekdays with no foreign transaction fees. Free plan includes £250 per month; Curve Pay X offers £3,333 per month.
• Apple Pay and Google Pay: Add cards to mobile wallets that your bank might not support natively.
• Anti-Embarrassment Mode: If a payment is declined on one card, Curve automatically tries the next linked card.
• Smart Rules: Automate which card is used for specific shops or spending categories.
• Curve Fronted: Use a credit card at merchants that only accept debit cards (fee-free on Pro and Pro+ plans).

Curve Pay Plans and Pricing

Curve Pay offers four tiers: Curve Pay (free), Curve Pay X (£5.99 per month), Curve Pay Pro (£9.99 per month), and Curve Pay Pro+ (£17.99 per month). The free plan includes all core features. Paid plans add higher FX limits, longer Go Back in Time windows, free overseas ATM withdrawals, and cashback at selected retailers.

You do not need a paid plan to claim the referral bonus. The free Curve Pay plan is all you need.

Is the Curve referral code KNV4K36D still valid?

Yes. Our Curve referral code KNV4K36D is active and verified as of March 2026. The referral link above applies it automatically when you sign up. If the code does not appear during registration, you can enter it manually in the promo code field.

How much cashback do you get with a Curve referral?

You get 1% cashback on all spending for your first 30 days, capped at £15 in Curve Cash Points. To qualify, you must make at least 5 transactions of £2 or more. Both the person signing up and the person who referred them receive the same bonus.

Is Curve safe and regulated?

Yes. Curve UK Limited is an authorised Electronic Money Institution regulated by the Financial Conduct Authority (FCA firm reference number 900926). Customer funds are safeguarded up to £100,000. In November 2025, Lloyds Banking Group — one of the UK's largest banks — announced its acquisition of Curve, further reinforcing the platform's stability.

Can I refer my own friends after signing up?

Yes. Once you have a Curve account, you can find your own referral link in the app under the Refer a Friend section. Share it with friends and family. Each successful referral gives both of you 30 days of 1% cashback, so the more people you refer, the longer your cashback period lasts.