Invoice Payment Asset
Pronunciation: IN-voys PAY-muhnt AS-et
Definition
Invoice payment asset is the cryptocurrency or token that the payer is expected or allowed to transfer to satisfy an invoice. It is selected from the merchant or provider's supported assets and may be fixed when the invoice is created or chosen by the payer during checkout.
Overview
Meaning in plain language
Invoice payment asset is the cryptocurrency or token that the payer is expected or allowed to transfer to satisfy an invoice. It is selected from the merchant or provider's supported assets and may be fixed when the invoice is created or chosen by the payer during checkout.
How it works
It is selected from the merchant or provider's supported assets and may be fixed when the invoice is created or chosen by the payer during checkout. For tokens, the definition should include the correct contract on the selected network.
The system should use stable asset identifiers rather than ticker symbols alone, validate the token contract where applicable, and lock the quoted amount for a defined period. Unsupported or look-alike assets must not be credited automatically.
The payer may send one asset while the merchant receives another after conversion, and a symbol such as USDT can represent different contracts on different networks.
An invoice can request BTC as the payment asset while the merchant's account automatically settles the value into USDT.
Where people get it wrong
Two tokens with similar names or logos are not interchangeable. Verify the contract, network and decimals before crediting an invoice or reporting an amount.
Related concepts
Example
An invoice denominated in USD may permit USDT and USDC, but the actual payment asset is the specific token that arrived. The record should identify both symbol and token contract or native asset identifier; "USDT" alone is not enough to determine what was transferred.
Comparison
The invoice pricing currency expresses value; the payment asset names the native coin or token actually received.
Key Takeaway
Invoice payment asset is the cryptocurrency or token that the payer is expected or allowed to transfer to satisfy an invoice; its meaning and evidence must remain consistent across checkout, monitoring, fulfillment, and reconciliation.
Sources
- ERC-20: Token Standard — Ethereum Improvement Proposals (2026-08-02)
- ERC-7528: ETH (Native Asset) Address Convention — Ethereum Improvement Proposals (2026-08-02)
- Supported Currencies — OxaPay (2026-08-02)