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Glossary

Payment Instruments

What’s actually used to settle an invoice? Cash, bank transfer, credit card or digital coins?

Payment instruments are the tools that make economic transactions happen. They enable the actual flow of money and mark the final step in the purchasing process.

What Are Payment Instruments?

Payment instruments are all legally recognized means by which a payment obligation can be fulfilled. They serve to complete the exchange of goods and services bringing a transaction to its conclusion.

The main categories include:

  • Cash: Coins and banknotes, considered legal tender.
  • Bank money: Funds held in accounts, used for transfers or direct debits.
  • Electronic payment instruments: Credit cards, debit cards, mobile payment apps.
  • Digital currencies: e.g., Bitcoin and others, which are not legally recognized as official payment instruments in all jurisdictions.

Legal Tender

In Germany and the Eurozone, euro cash is considered legal tender. This means it must generally be accepted for settling debts, unless a different arrangement has been contractually agreed upon..

Payment Instruments in Business Practice

In day-to-day business, the following instruments are especially common:

  • Bank transfer: The standard in B2B transactions.
  • SEPA direct debit: Often used for recurring payments.
  • Credit card: Popular in e-commerce and international transactions.
  • Mobile payment: Increasingly relevant in retail (e.g., Apple Pay, Google Pay).

The choice of payment instrument depends on:

  • the type of service or product,
  • the level of trust between parties,
  • the available technical infrastructure,
  • and the applicable legal framework.

Payment Instrument vs. Payment Method

Both terms are often used interchangeably, but they refer to different aspects:

TermMeaning
Payment instrumentThe actual tool used to make a payment (e.g., cash, card, transfer).
Payment methodThe way the payment is structured (e.g., upfront payment, installment plan, cash on delivery).

Conclusion

Payment instruments are a key part of every transaction. For businesses, offering familiar and trusted options – and clearly communicating payment terms – builds confidence and improves liquidity planning.

Digital solutions like real-time transfers or mobile payments speed up incoming payments. Yet traditional methods such as bank transfers remain the standard in B2B environments.

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