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

Join over 4 million users. Combine all your bank cards into one smart wallet, skip foreign transaction fees, and earn 1% cashback for 30 days after qualifying.

Checked 21 Sept 2026

Open the referral link; enter KNV4K36D if asked during sign-up. Complete five purchases of £2 or more.

Get 1% Cashback Free

T&Cs apply · Referral link — we may receive a reward if you sign up.

Referral Link:https://referral-links.uk/r/curve

Open Link

The referral-links.uk link above stays the same. We update its destination if the partner changes their referral link.

Current partner referral link: https://www.curve.com/join#KNV4K36D

At a glance

Offer: 1% Cashback for 30 Days
What you get: Use our Curve referral code to sign up free and unlock 30 days of 1% cashback on eligible spending after five purchases of £2 or more, capped at £15 in Curve Cash Points. Curve Pay combines all your bank cards into one app with fee-free foreign spending and the unique Go Back in Time feature.
Both sides benefit?: Both may receive a reward after the qualifying steps
Link opens: curve.com
Last verified: Checked 21 Sept 2026 · how we check

Curve Referral Deal at a Glance

Bonus: 1% cashback on eligible spending for 30 days after qualifying (capped at £15 in Curve Cash Points)
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 September 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 eligible spending for 30 days after qualifying, capped at £15 in Curve Cash Points.

This cashback stacks on top of any rewards your underlying bank cards already give you. To qualify, make at least five purchases of £2 or more and meet the conditions shown in your invitation.

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.

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 UK Limited is authorised by the Financial Conduct Authority to issue electronic money (reference 900926). Lloyds Banking Group announced its acquisition of Curve in November 2025.

How to Claim Your Curve Referral Bonus

Follow these steps to claim your 1% cashback bonus:

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: Once qualified, check the reward period in the app before planning your spending.

Key Curve Pay Features

Go Back in Time: Switch which card paid for a transaction after the fact. Curve Pay gives you three transfers of purchases up to 30 days old per rolling 30-day period; X gives three up to 60 days old. Pro and Pro+ allow unlimited transfers up to 90 and 120 days respectively.
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 for supported payments that normally require debit. Pro and Pro+ have fee-free allowances; charges apply outside them.

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.

The basic Curve Pay subscription is free. A physical card can carry a separate fee; check the invitation and card-order screen for the requirements and costs that apply to you.

Is the Curve referral code KNV4K36D still valid?

Yes. Our Curve referral code KNV4K36D is active and verified as of September 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?

The reward gives 30 days of 1% cashback on eligible spending after you qualify, capped at £15 in Curve Cash Points. Both the person signing up and the person who referred them receive the same bonus.

Is Curve safe and regulated?

Curve UK Limited is authorised by the FCA to issue electronic money (reference 900926). Its UK terms explain safeguarding; this is different from FSCS bank-deposit protection. The separate customer protection policy covers eligible purchase disputes up to £100,000, subject to its conditions.

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. Check the reward and conditions in your own invitation before sharing.

Why is my Curve referral cashback pending?

The referral help page says the reward stays pending until the joining and purchase requirements are complete. If you have completed them, contact Curve through the app. Separate partner promo codes can have different spending rules.

Which spending is excluded from Curve referral cashback?

Exclusions include financial services and account funding, gambling, taxes and government payments, education payments, ATM withdrawals, Curve Fronted and payments using Curve Cash. See the current referral terms for the full list.

Can I withdraw the Curve sign-up bonus?

The referral reward is paid in points to spend through Curve Cash, rather than a bank transfer. At redemption, 100 points cover £1 of a purchase; the points cannot be withdrawn as cash. See the Curve Cash rules.

Current offer checks

Referral reward and qualification terms rechecked on 21 September 2026 against the invitation supplied on 5 September. Current published terms run to 31 December 2026; the invitation’s own conditions also apply. Plan information was reviewed on 10 September. No new account, qualifying purchases or reward redemption were completed.