Referral code vs promo code: what is the difference?

A referral code is tied to an existing customer and usually rewards a new sign up, while a promo code is a general discount that any shopper can use. Both reduce what you pay, but the rules, the size of the saving and the people who benefit are different. Knowing which one you are looking at saves you time and stops you missing out on the bigger offer.

What is a referral code?

A referral code, or invite link, belongs to one specific customer. When you sign up with it, the brand records who sent you. You normally receive a reward such as account credit or a discount on a first purchase, and the person who shared the code often receives a reward too.

Referral offers are almost always limited to new customers and to a first purchase, booking or deposit. That is because the brand is using the reward to pay for acquiring you, not to discount a customer it already has.

You will see referral codes in many industries, including travel and accommodation, banking, investing, food delivery, software subscriptions and crypto exchanges. If you want a deeper definition, read our page on what a referral code is.

What is a promo code?

A promo code, sometimes called a discount code or coupon code, is published by the brand for a wider audience. It might be part of a seasonal sale, a newsletter welcome offer, a student discount or a code handed to a partner or influencer.

It is not linked to a particular customer, and returning customers can often use it. You usually type it in at checkout, and it usually applies to a basket rather than to an account.

The main differences

Why brands offer both

Brands use referral programmes to grow through recommendations, which are trusted more than adverts. The reward is a marketing cost that they have chosen to pass on to customers rather than spend on advertising.

Promo codes are tools for specific goals, such as clearing stock, boosting sales in a quiet month or rewarding a loyal audience. Because they are short and targeted, they come and go quickly.

Can you combine a referral code with a promo code?

Sometimes, but do not assume so. Many checkout systems accept only one code at a time, and many terms state that referral rewards cannot be used together with other promotions.

Here is a simple way to find out:

1. Read the terms of the referral offer and look for the words "cannot be combined" or "cannot be used with other offers".
2. Start from the referral link and create your account.
3. Add your items or your booking, then try the promo code at checkout.
4. Look at the final total. If the referral credit disappears when the promo code is added, remove the promo code and compare both options.

Which should you choose?

Use this checklist:

• You are a new customer: look for a referral offer first, because the reward is often larger than a standard promo code.
• You already have an account: a promo code is usually your only option, since most referral rewards exclude existing customers.
• Your purchase is small: a fixed credit often beats a percentage.
• Your purchase is large: a percentage off may be worth more than a fixed credit.
• Both are available: work out the final price for each and pick the cheaper one.

Common mistakes

• Creating an account first and looking for a code afterwards, which can make you ineligible.
• Assuming a code works in every country when the offer is limited to certain regions.
• Ignoring the minimum spend or the time limit attached to the reward.
• Using a code from an unknown site that does not lead to the brand's real website. Our guide on whether referral codes are safe explains how to check.

The bottom line

Referral codes reward new customers for joining through a recommendation, and promo codes are general discounts. Check what is on offer before you sign up, read the terms, and compare the final price. If something does not apply, our guide to why a referral code is not working lists the usual causes.