What are Referral Codes and How Do They Work?

A referral code is a unique code or link an existing customer shares so a new person can sign up. When the new person uses that code, both people usually get a reward. That is different from a public discount or voucher code the brand publishes for anyone. This guide covers how referral codes work and how to use one in 2026.

What are referral codes?

A referral code is tied to one person. The brand uses it to track who brought the new customer. The reward might be credit, a percentage off a first order, extra features, or cash. Invite codes and refer-a-friend links are the same idea with different names.

How do they differ from discount codes?

A discount code is a campaign offer. Anyone with the string can often use it at checkout. A referral code only works through a specific person's link or code, and it usually only works for new accounts. If you searched for a referral code, you need someone already on the service. That is what this site lists.

How do you use a referral code?

Find the signup or checkout field labelled referral code, invite code, invitation code, or refer a friend. Paste the code, or click the referral link so the site fills it in for you. Most programs only work on a new account. If you already signed up without a code, you usually cannot add one later.

If you do not have a friend on the service, use a public referral from a directory like this one, then check that the bonus still matches what the brand currently offers.

What other names does it go by?

Brands mix the labels. CapCut says invite code or reference code. Fashion shops say refer a friend. GPT and survey apps usually say referral code. Crypto faucets often say promo code even when they mean a referred signup. If the bonus is tied to a person rather than a sitewide sale, it is a referral.

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