A sales technique where additional products or services are offered to complement the original purchase.

Add-on sales typically increase the total transaction value and enhance the customer's experience by addressing related pain points. Common in both B2B and B2C settings, this strategy can include upgrades, extended warranties, extra features, or related accessories. It’s often used interchangeably with terms like upselling or cross-selling, though technically, it refers to smaller, supplementary purchases.

Examples of add-on sales per industry:

• SaaS - A user subscribes to a project management platform. During checkout, they’re offered an add-on for custom branding.
• E-commerce - A customer buys a camera and is prompted to add a memory card or protective case before completing the purchase.
• Retail - A shopper buys a suit at a clothing store and is offered a matching tie or belt at checkout.
• Hospitality - A guest books a hotel room and is offered breakfast, late checkout, or airport shuttle services as add-ons.