How International Payment Gateways Work and What They Cost
What an international payment gateway does
An international payment gateway is the system that converts a customer's payment in one currency into money your business can actually use, then moves it across borders to your bank account. When someone in Japan pays you in yen using a credit card, the gateway translates that transaction, handles the currency conversion, checks whether the card is real, and eventually deposits dollars (or euros, or whatever your home currency is) into your account.
The gateway sits between your website or point-of-sale system and the payment networks—Visa, Mastercard, local card schemes—that actually move the money. Without it, you cannot accept cards from customers outside your home country. With it, you can take payments from nearly anywhere, though the cost and speed depend heavily on which gateway you choose and which countries your customers are in.
Key Takeaways
- International gateways charge a percentage of each transaction (typically 2–4%), a flat fee per transaction, currency conversion fees, and sometimes monthly minimums or settlement fees.
- The gateway's job is to convert foreign currency, verify the card, and move the money to your bank—but it does not may provide the payment will succeed or that the customer is legitimate.
- Settlement time varies by gateway and destination country; money may arrive in your account within one business day or take a week, and some gateways hold funds for 7–30 days as a fraud buffer.
- Chargebacks and fraud are higher risk with international transactions, so gateways often require stronger verification, higher reserves, or fraud detection tools.
- Your choice of gateway depends on which countries you sell to, your transaction volume, and whether you need local payment methods (bank transfers, digital wallets, local cards) in addition to international cards.
How the fees stack up
International payment gateways charge in layers, and the total cost is rarely just one number. A typical transaction might include a percentage fee (2% to 4% of the transaction amount), a per-transaction flat fee (usually $0.20 to $0.50), and a currency conversion markup (1% to 3% on top of the real exchange rate). If you process $10,000 in international sales in a month, you might pay $200 to $400 in percentage fees alone, plus $20 to $50 in flat fees, plus another $100 to $300 in conversion costs.
Some gateways also charge a monthly minimum (often $25 to $100), a settlement fee when money lands in your bank ($5 to $25 per deposit), or a chargeback fee if a customer disputes the charge ($15 to $100 per dispute). A few charge a monthly gateway fee on top of transaction fees. Read the pricing page carefully and ask for a sample calculation: "If I process $5,000 a month from customers in the UK, Germany, and Canada, what is my total monthly cost?" The answer will vary wildly between gateways.
Which currencies and countries the gateway actually reaches
Not every gateway accepts payments from every country. Some work in 50 countries; others work in 180. The difference matters because a customer in a country the gateway does not support cannot pay you at all, even if they have a Visa card. Before you sign up, check the gateway's list of supported countries and make sure it covers the regions where your customers actually are.
Similarly, gateways vary in which currencies they accept and which ones they settle to your bank account in. A gateway might accept payments in 135 currencies but only settle to your account in 5. That means if a customer in Thailand pays you in Thai baht, the gateway converts it to one of those 5 currencies (say, US dollars) before sending it to your bank. You lose money on that conversion, and you have no choice in the matter. Some gateways let you hold balances in multiple currencies and convert them yourself when rates are favorable; others do not.
Settlement time and fraud holds
After a customer's payment is approved, the money does not instantly appear in your account. Settlement is the process of the gateway collecting the funds from the card network and moving them to your bank. For domestic US transactions, this usually takes one to two business days. For international transactions, it can take three to seven business days, depending on the countries involved and the gateway's banking relationships.
Many gateways also hold a portion of incoming funds as a fraud reserve—typically 7% to 30% of each transaction, kept for 7 to 30 days. This protects the gateway if the transaction turns out to be fraudulent or the customer disputes it. If you process $10,000 in international sales, the gateway might hold $700 to $3,000 for a month before releasing it. This is not money you have lost; it is money you cannot use until the hold period ends. Ask the gateway upfront what its reserve policy is and whether the hold time shortens as your account history improves.
Chargebacks and fraud risk
A chargeback happens when a customer tells their bank "I did not authorize this charge" or "I never received the goods," and the bank reverses the transaction, pulling the money back out of your account. International transactions have higher chargeback rates than domestic ones because the customer is farther away, the transaction is harder to verify, and some customers know they can dispute a charge and the merchant is unlikely to pursue it across borders.
To reduce chargeback risk, gateways often require international merchants to provide stronger proof of delivery (tracking numbers, signed receipts, photos), use fraud detection tools, or maintain higher reserve balances. Some gateways refuse to work with high-risk categories altogether—gambling, adult content, pharmaceuticals, and certain financial services are common exclusions. If you sell in one of these categories, your gateway options shrink significantly, and your fees will be higher.
Local payment methods versus international cards
Many customers outside the US do not use credit cards the way Americans do. In Europe, bank transfers and digital wallets (Apple Pay, Google Pay) are more common. In Asia, local schemes like Alipay and WeChat Pay dominate. In Latin America, cash-on-delivery and local bank transfers are standard. If your gateway only accepts international credit cards, you are turning away customers who cannot or will not pay that way.
Some gateways offer local payment methods—the ability to accept bank transfers, digital wallets, and local card schemes in addition to Visa and Mastercard. This usually costs more (higher percentage fees or additional per-method fees), but it dramatically increases your conversion rate in those regions. Before choosing a gateway, think about where your customers are and how they prefer to pay. A gateway that covers 50 countries but only accepts cards might be less useful than one that covers 30 countries but accepts cards, bank transfers, and local wallets.
Comparing gateways: what to look for
Start by listing the countries and currencies your customers use. Then check each gateway's supported countries and currencies against that list. Next, calculate the all-in cost: percentage fee plus per-transaction fee plus conversion markup, applied to a typical transaction size. Ask about monthly minimums, settlement fees, chargeback fees, and fraud reserves. Finally, check the settlement time and whether the gateway offers local payment methods in your key markets.
Some gateways are designed for high-volume businesses and have lower percentage fees but higher monthly minimums. Others are built for small sellers and have no minimums but higher per-transaction costs. A gateway that is cheap for a $50,000-a-month business might be expensive for a $5,000-a-month business, and vice versa. Do not assume the biggest name is the best fit for you. Read reviews from merchants in your industry and your regions, and ask the gateway's support team whether they have worked with businesses like yours before.
Frequently Asked Questions
Do I need a different gateway for international payments, or can my current one handle it?
Many US gateways do handle international payments, but not all. Check your current gateway's documentation or call support and ask: "Which countries can my customers pay from, and what are the fees?" If your gateway does not support the countries you need, or if the fees are too high, you will need to switch or add a second gateway for international transactions.
What happens if a customer's payment fails?
The gateway will decline the transaction and usually tell you why—card expired, insufficient funds, card not supported in that country, fraud check failed. You can then contact the customer and ask them to try a different card or payment method. Some gateways let you retry failed transactions automatically; others require manual retry. The gateway does not refund you for failed transactions because no money moved.
Can I get my money faster than the standard settlement time?
Some gateways offer fast settlement or next-day payouts for an additional fee, typically 1% to 2% of the transaction amount. This is useful if you need cash flow quickly, but it costs more. For most small businesses, standard settlement (3–7 days) is acceptable and cheaper.
What if a customer disputes a charge from another country?
The chargeback process is the same as for domestic transactions: the customer's bank investigates, and you have a window (usually 7–10 days) to submit evidence that the transaction was legitimate. For international transactions, this evidence is harder to gather and the customer is harder to contact. The gateway will charge you a chargeback fee ($15–$100) whether you win or lose the dispute.
Do I need to collect sales tax on international sales?
This depends on the customer's location and your business structure, not on the gateway. The gateway does not collect or remit tax; it only processes the payment. You are responsible for understanding tax obligations in each country or region where you sell. This is a legal and accounting question, not a payment processing one, so consult a tax professional in your jurisdiction.