{"id":900,"date":"2025-12-31T17:11:24","date_gmt":"2025-12-31T09:11:24","guid":{"rendered":"https:\/\/www.benpay.com\/blog\/?p=900"},"modified":"2026-01-12T16:57:07","modified_gmt":"2026-01-12T08:57:07","slug":"on-chain-yield-cards-explained","status":"publish","type":"post","link":"https:\/\/www.benpay.com\/blog\/index.php\/on-chain-yield-cards-explained\/","title":{"rendered":"On-Chain Yield Cards Explained: What They Are and How Earn While You Spend Works"},"content":{"rendered":"\n

As crypto payments move closer to everyday use, crypto cards<\/strong> have become a practical tool for cross-border spending, ad payments, and premium subscriptions. Yet one long-standing problem remains unresolved: Money sitting in a card account does nothing until it is spent. <\/strong>This inefficiency is exactly what an on-chain yield card<\/strong> is designed to solve.<\/p>\n\n\n\n

In this guide, we\u2019ll explain what an on-chain yield card is, how Earn While You Spend<\/em> works in practice, the security and self-custody model behind it, real-world implementation examples (BenPay<\/a>), and who this product is best suited for.<\/p>\n\n\n\n

What Is an On-Chain Yield Card?<\/h2>\n\n\n\n

An on-chain yield card<\/strong> is a crypto payment card that enables the card account balance to participate in on-chain earnings<\/strong> after the “Earn” button is activated by the user. In simple terms: An on-chain yield card = a crypto payment card combined with an on-chain yield mechanism based on the balance of the card account<\/p>\n\n\n\n

Unlike traditional crypto cards, where balances sit idle until spent, an on-chain yield card ensures that unused funds continue to work and generate on-chain yield in the background<\/strong>.<\/p>\n\n\n\n

Key Differences from Traditional Crypto Cards<\/h3>\n\n\n\n
Feature<\/td>Traditional Crypto Payment Card<\/td>On-Chain Yield Card<\/td><\/tr>
Card account balance<\/td>Idle<\/td>Earning yield on-chain<\/td><\/tr>
Yield access<\/td>None<\/td>Built-in, once the “earn” button enabled, automatic yield<\/td><\/tr>
User action<\/td>Top up \u2192 Spend<\/td>Top up \u2192 Earn \u2192 Spend<\/td><\/tr>
DeFi knowledge required<\/td>No<\/td>No<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n
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Users do not need to manually participate in DeFi or understand complex DeFi protocols. After activating the “Earn” button, as long as the funds remain in the card account, they can continuously generate on-chain returns.<\/p>\n\n\n\n

How \u201cEarn While You Spend\u201d Works<\/h2>\n\n\n\n

Card Account Balance-Based On-Chain Yield Model<\/h3>\n\n\n\n

In an on-chain yield card, Earn While You Spend refers to a card account balance-based on-chain yield mechanism, not transaction-based rewards. Instead of earning from each payment, users earn an on-chain yield from the unspent portion of their card account balance.<\/p>\n\n\n\n

Here\u2019s how it works in practice:<\/p>\n\n\n\n

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  1. Card Account Balances Remain On-Chain<\/li>\n<\/ol>\n\n\n\n

    When users top up stablecoins into an on-chain yield card, those funds are held in an on-chain wallet linked to the card. Before being consumed, the balance of the card account remains on the chain, enabling it to be compatible with smart contracts and on-chain yield protocols. The card itself is merely a payment interface, not an asset custodian.<\/p>\n\n\n\n

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    1. Idle Funds Are Automatically Allocated to Yield<\/li>\n<\/ol>\n\n\n\n

      Any portion of the card account balance that is not immediately spent is considered idle funds. After users activate the “Earn” function, these idle funds are allocated into high-liquid, relatively low-risk on-chain yield strategies.<\/p>\n\n\n\n

      After starting to “earn”, the entire process is automated for users:<\/p>\n\n\n\n