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International Payment Processing: Accept Payments from Customers Worldwide

Accept payments from customers in any country with multi-currency processing. Here is how international payment processing works and what it costs.

NC
Natalie Cloez
Director of Merchant Services · Published 2026-03-18 · Updated 2026-03-18

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International Payment Processing

Quick answer: International payment processing lets you accept credit cards, debit cards, and alternative payment methods from customers in any country. Multi-currency processing displays prices in local currencies and processes transactions in 100+ currencies. Cross-border fees add 0.5-1.5% to domestic rates. Unison provides international processing through gateway partners that support multi-currency checkout.

As businesses expand globally — through eCommerce, SaaS, digital products, or international services — the need for international payment processing grows. But cross-border payments are more complex than domestic processing, with additional fees, currency conversion, and local payment method preferences.

How International Processing Works

1. Customer in another country visits your website 2. Your checkout displays prices in their local currency (dynamic currency conversion) 3. Customer pays with their local payment method (credit card, local bank transfer, e-wallet) 4. Your gateway processes the transaction and converts to your settlement currency 5. You receive funds in your preferred currency (usually USD) minus processing fees and conversion costs

Cross-Border Fees

International transactions cost more than domestic because of currency conversion and cross-border interchange rates:

Fee TypeTypical Cost
Cross-border assessment (Visa/MC)0.45-0.80%
Currency conversion0.5-1.0%
International interchange premium0.5-1.5% above domestic
Total additional cost1.0-3.0% above domestic rates

Multi-Currency Processing

Multi-currency processing lets customers pay in their local currency. Benefits:

  • Higher conversion rates — customers are 30% more likely to complete purchase when prices are in their currency
  • No surprises — customers see the exact amount they will be charged
  • Reduced chargebacks — "I was charged more than the displayed price" disputes disappear

Alternative Payment Methods by Region

RegionPopular Payment Methods
EuropeSEPA, iDEAL (Netherlands), Bancontact (Belgium), Sofort
AsiaAlipay, WeChat Pay, GrabPay, UPI (India)
Latin AmericaPIX (Brazil), OXXO (Mexico), PSE (Colombia)
UKFaster Payments, Open Banking
GlobalApple Pay, Google Pay, PayPal

Not every business needs to support local payment methods. If you primarily sell to English-speaking markets, Visa/Mastercard support covers most transactions.

International Processing for High-Risk Businesses

High-risk businesses face additional challenges with international processing:

  • Not all acquiring banks support cross-border for high-risk categories
  • Some countries have specific regulations for your product type
  • International chargebacks have longer processing windows
  • Fraud rates are higher on cross-border transactions

Contact Unison for international payment processing setup — we connect you with acquiring banks and gateways that support global transactions for your industry.

Frequently Asked Questions

How much does international payment processing cost?
International payments cost 1.0-3.0% more than domestic transactions due to cross-border assessment fees (0.45-0.80%), currency conversion (0.5-1.0%), and higher interchange rates. Total effective rates for international card-not-present transactions typically range from 3.5-6.0% with interchange-plus pricing.
Can high-risk businesses accept international payments?
Yes, but not all acquiring banks support cross-border processing for high-risk categories. Unison connects high-risk merchants with acquiring banks and gateways that specifically support international transactions for their industry. Contact us for details on your specific product category.
Should I display prices in local currencies?
Yes, if you receive significant international traffic. Multi-currency pricing increases conversion rates by approximately 30% because customers see exact amounts in their currency with no conversion surprises. Most modern payment gateways support dynamic currency conversion automatically.

Tagged:

internationalmulti-currencycross-borderpayment processingglobal
NC
Natalie Cloez
Director of Merchant Services, Unison Payment Solutions

Natalie Cloez oversees merchant onboarding and compliance at Unison Payment Solutions, specializing in high-risk industries and chargeback prevention.

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