Glossary
Write-Off

Write-Off

The accounting process of recognising that a receivable (such as an unpaid invoice or failed direct debit) is unlikely to be collected.

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Expiry Date (Card Expiry Date)

Expiry Date is the month and year printed on a payment card, indicating when the card becomes invalid and must be replaced.

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ZKP is a cryptographic method that allows one party to prove knowledge of information without revealing the information itself, used in advanced authentication and privacy-preserving payment solutions.

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Refers to goods or services that are taxed at a 0% VAT rate, affecting invoice and payment calculations.

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