10+ Best Referral Code Examples and the Way They Work

A referral code is a unique string of letters and numbers, such as JOHN20 or REF12345, that an existing customer shares with friends. When a friend enters it at sign-up or checkout, the business knows who sent them: the friend usually gets a discount or credit, and the person who shared the code earns a reward. Unlike a generic promo code, a referral code belongs to one person, which is what makes the referral trackable.

Referral codes aren’t just a marketing gimmick; they’re one of the most powerful ways to turn happy customers into active promoters. When done right, a referral code gives shoppers an easy, trackable way to share your brand with friends while rewarding both sides. The result? More trust, higher conversion rates, and organic growth that doesn’t rely on expensive ads.

In this article, we’ll explore 10+ of the best referral code examples from real brands and uncover the mechanics behind how they work, from incentive structures to creative messaging so you can design a referral program that truly drives results.

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What is a referral code?

A referral code is a unique alphanumeric string provided by a company, service, or existing user that a new customer can enter during the sign-up or purchase process. 

The primary purposes of a referral code are:

• Tracking Referrals: It helps the company track which existing user or marketing campaign is responsible for bringing in a new customer.
• Rewarding Users: Both the existing user (referrer) and the new user (referee) typically receive an incentive when the code is used successfully.
• Providing Incentives: These incentives can take various forms, such as discounts, free credits, bonus points, or cash back.

Difference between referral code and referral link

A referral code is a unique alphanumeric string (e.g., “SAVE20” or “JOHN123”) that a customer manually inputs during sign-up or checkout to track referrals and apply rewards. Referral codes are easy to share verbally, in print, or offline but require the user to remember and enter the code correctly.

A referral link, on the other hand, is a clickable URL that contains the embedded referral code within it (e.g., www.example.com/signup?ref=JOHN123 ). When clicked, the referral link automatically applies the referral tracking and any discounts or rewards, providing a seamless user experience. Referral links are easier to use for digital sharing via social media, email, or messaging apps and enable more precise tracking of clicks, shares, and conversions.

>> See more: Referral Codes vs Referral Links: Which Drives More Shopify Sales in 2026

Types of referral code and examples

• Alphanumeric codes: These are unique combinations of letters and numbers, often personalized for each user. Example: A code like REF12345 or JOHN25.
• Personalized codes: These codes are unique to an individual user, often incorporating their name to make them more personal and easier to remember. Example: ALEXSMITH20.
• Unique URLs (PURLs): Some programs generate a unique link for each user that automatically tracks referrals when clicked. Example: Casper generates a unique link that can be shared via email, messenger, or Facebook.
• Generic codes: These are mass-market codes that are not tied to a specific individual but are used for broad promotional campaigns. Example: WELCOME10.

What does a referral code number look like?

There is no standard format. Each company decides how its codes look, and a code only works with the company that issued it. The real-world examples below fall into a few patterns:

Looking for a referral code number list to use? Lists posted on coupon and forum sites are often expired, regional or against the program’s terms. The reliable way to get a valid code is to ask a friend who already uses the service, or to check the brand’s official “Refer a friend” page.

10+ Referral code examples that inspire your program in 2026

Tesla referral code example

• Industry: Automotive / Electric Vehicles (EV)
• Referral code sample: ts.la/yourname12345

Tesla referral codes assign a unique URL linked to a Tesla owner’s account. When someone makes a Tesla purchase using your referral link—either a custom vehicle or one from existing inventory—you and the buyer each receive rewards. Rewards usually include Tesla Credits that can be applied to services or future purchases, or sometimes a three-month trial of Tesla’s Full Self-Driving software for the buyer. Tesla updates its referral program periodically to maintain exclusivity and customer engagement, making referrals highly valuable for both new and existing customers

Uber referral code example

• Industry: Ride-Hailing / Mobility Services
• Sample Referral Code: abc12x

Uber provides unique referral codes and invite links to both riders and drivers. When a new user signs up and completes their first trip or delivery using your code, both of you benefit with credits or discounts on rides or Uber Eats. These rewards vary depending on location and current promotions, often including free ride credits or discounts up to a set amount. Uber’s referral program drives new user acquisition by leveraging social sharing among riders and drivers.

Samsung referral code example

• Industry: Consumer Electronics & Technology
• Sample Referral Code: REFXABCD1234

After purchasing eligible products, Samsung customers can generate referral codes to share. When a friend or family member uses your code to purchase from Samsung’s online store, they receive a discount typically between 5-10%, while you earn Samsung Credit or cashback to spend on future purchases. Samsung’s referral program helps increase sales through direct customer recommendations and incentivizes repeat buying with credits.

Instacart referral code example

• Industry: Grocery Delivery & E-commerce
• Sample Referral Code: WINGAB1234

Instacart users receive personalized referral links or codes that can be shared with new customers. When a referred friend completes their first grocery order using your referral code, they get a discount such as $10 off, and you earn Instacart credits that can be used on future orders. This program encourages users to expand Instacart’s customer base through word-of-mouth and rewards ongoing grocery order activity.

Binance referral code example

• Industry: Cryptocurrency Exchange & FinTech
• Sample Referral Code: 12345678

Binance gives every user a unique referral ID to invite new account holders to the cryptocurrency exchange. When a referred user signs up and starts trading, the referrer earns a percentage of the trading fees as commission. During promotional periods, new users may also benefit from reduced trading fees. This mutual benefit system incentivizes active referral and trading, supporting user growth in a competitive crypto exchange market

Shein referral code example

• Industry: Fashion & E-commerce
• Sample Referral Code: x1y2z3

A Shein referral code is a unique link or code you share with others to give them a discount on their first order and earn you rewards like Shein points or coupons. An example of a referral link could look like https://shein.top/x1y2z3 and an example of a referral code you add to your account is x1y2z3. This code isn’t applied at checkout like a regular coupon; instead, it’s added to your account under “Reference” to provide a discount on purchases for a set period, after which it can be reapplied.

Poshmark referral code example

• Industry: Social Commerce / Fashion Marketplace
• Sample Referral Code: JANESCLOSET

A Poshmark referral code is the Poshmark user’s username, for example, JANESCLOSET (a sample username), which is used by a new user to sign up and receive a credit. You can find potential codes on Poshmark’s support pages, social media, or in community forums, but your personal code is your own username.

Quince referral code example

• Industry: Direct-to-Consumer (DTC) Apparel & Home Goods
• Sample Referral Code: http://rwrd.io/abc1234?c

A Quince referral code is typically a unique string of letters and numbers, but it’s often shared as a special referral link that automatically applies the discount. An example of how this works is a referral link like http://rwrd.io/abc1234?c, which gives a new customer $20 off their first order of $100 or more. The person sharing the link also receives a $20 credit after the purchase is completed.

Runna referral code example

Here’s how a referrer finds their referral code in the Runna app:

• Industry: Fitness / Subscription Services
• Sample Referral Code: RUNNAAB12CD3

A Runna referral code is typically a string of letters and numbers that starts with “RUNNA” (e.g., RUNNAAB12CD3 or RUNNAXY45ZW6) and can be entered in the app for a free two-week trial. When a new user enters a valid referral code during the sign-up process, both they and the referrer receive a reward, typically two weeks of free access to the Runna service.

Paypal referral code example

Here’s how a referrer finds their referral code in the PayPal app:

• Industry: FinTech / Online Payments & Digital Wallets
• Sample Referral Code: PAYWITHBOB

A PayPal referral code is not a single, static code, but a unique, personalized link that is generated when you share your referral link. When a friend signs up using your link and meets the requirements, such as linking a bank account or card and completing an eligible transaction, both of you can receive a reward.

Temu referral code example

You can watch this video to see how to find and use a Temu referral code:

• Industry: E-commerce / Online Marketplace
• Sample Referral Code: ACH123456

Temu encourages users to share unique referral codes or links. When a new customer signs up and makes a qualifying purchase with the code, both receive credits, coupons, or promotional products. This approach accelerates customer acquisition and boosts app engagement by leveraging social referrals and instant rewards.

Referral Code FAQs

What does “referral code (optional)” mean on a sign-up form?

It is a field where you can enter a code from someone who referred you. Optional means you can leave it blank and still create your account. If you do enter a valid code, you usually unlock a welcome reward and the person who invited you gets credit. Many services only accept the code during sign-up, so add it before you finish.

Is a referral ID the same as a referral code?

Yes, in practice. Some platforms, such as Binance, call it a referral ID because it is a number tied to your account. Whether it is called a code, an ID or an invite code, it does the same job: it tells the business who referred the new customer.

Where do I find my own referral code?

Look for a “Refer a friend”, “Invite friends” or “Rewards” section in the app or in your account settings. Most programs show the code next to a shareable link. On Shopify stores that run BLOOP, customers get their personal link and code after joining the referral program.

What makes a referral code valid?

A valid code was issued by the same company, is still active, and is used by someone who meets the program terms. Common terms are that the friend must be a new customer, place a first order above a minimum amount, and not be the same person as the referrer. Self-referrals are usually rejected.

Is a referral code the same as a promo code?

No. A promo code such as WELCOME10 is the same for everyone and only gives a discount. A referral code is unique to one person, so it also tells the business who to reward. See the glossary definition for more.

How do I create referral codes for my Shopify store?

A referral app creates and tracks them for you. BLOOP gives every referrer a unique 8-character share code, lets you set a prefix such as your brand or the customer’s first name, and credits the right person automatically. To brainstorm code formats first, try the free referral code generator.

Boost sales through trust, not ads – start your BLOOP referral program today

Turn your happy customers into your best marketing channel with BLOOP. In just a few clicks, you can launch a powerful referral and affiliate program that rewards customers for sharing your store – no setup headaches, no coding required. Create custom branded referral codes, track every sale automatically, and watch your growth take off.