A supplement brand in Ohio starts getting orders from Germany, Australia, and Brazil. The orders come in, the cards get entered, and a steady share of them decline for no reason the customer can see. The customer tries once more, gets declined again, and buys from someone local. The issuing banks are reading those transactions as foreign, unfamiliar, and attached to a merchant category they already treat with suspicion.
Cross-border acceptance is harder for every merchant, and it is harder again for merchants in categories acquirers watch closely. The problems are separable, though, and most of them have a specific fix that has nothing to do with pricing.
Decline rates on foreign cards
An issuing digital bank in Sao Paulo receiving an authorization request from an American acquirer sees a foreign transaction on a card that usually spends domestically. The issuer has fraud models tuned to its own market, limited history on the merchant, and no strong reason to approve. Industry benchmarks put cross-border decline rates in the range of 15% to 25%, against low single digits for domestic transactions in the same categories.
Category makes the gap worse. A merchant coded into a category with elevated dispute history starts each authorization request with a lower baseline, and the foreign-transaction flag compounds it. The result is a business that reads its own sales figures and concludes there is no demand abroad, when the demand existed and the authorizations failed.
Local acquiring and issuer familiarity
The structural fix is local acquiring. A merchant with an acquiring relationship inside the buyer’s region sends the authorization through a domestic rail, and the issuer sees a domestic transaction from a familiar acquirer. Approval rates improve substantially, and cross-border assessment fees disappear on those transactions.
The obstacle is that local acquiring usually requires a local entity, a local bank account, and underwriting in that market. Few small businesses can justify incorporating in three countries. The middle ground is a provider that already holds licenses in the target markets and can board a merchant onto them. This is where the choice of provider decides the ceiling on international revenue, and where high risk payment processors differ most from one another, since some hold acquiring licenses in a handful of regions and others resell a single domestic connection with a foreign veneer on top.
Currency presentment and settlement
Charging every customer in dollars is the default and the most expensive option available. The customer’s issuer applies its own conversion rate plus a foreign transaction fee, the customer sees a total that differs from the price on the site, and disputes follow.
Presenting prices in local currency solves the confusion and creates a settlement question. Funds can be settled in the local currency into a local account, or converted and settled in dollars at the provider’s rate. Conversion spreads of 1% to 3% above the interbank rate are common, and that spread is charged on top of processing fees. Businesses selling into three or four markets should ask for the spread in writing, since it is quoted less often than the processing rate and costs more than most owners expect.
Currency movement itself is a real cost for anyone holding balances abroad. FX volatility has pushed even large finance teams toward hedging, and a small business that settles weekly reduces the same exposure without buying any instruments.
The fee stack on foreign transactions
Cross-border transactions incur charges domestic ones do not. Card networks apply a cross-border assessment, typically 0.4% to 1%, and a second international service assessment where the currency differs from the merchant’s settlement currency. Acquirers add their own margin on foreign volume, and the payout to a foreign bank account brings a wire fee.
For comparison, moving small sums across borders through banks costs more than most merchants assume. The World Bank puts the global average cost of sending remittances at 6.36% as of the third quarter of 2025, with banks the most expensive channel at almost 15%. Card acceptance is cheaper than that, and the gap between a well-structured card setup and a poorly structured one still runs several points.
Regulators have been working the problem. The G20 program on cross-border payments set quantitative targets for cost, speed, and transparency by the end of 2027. Progress reports so far show slight improvement at the global level, so a small business planning international expansion should budget against current costs.
Screening, sanctions, and local rules
Every international transaction passes through sanctions and watchlist screening. A merchant selling supplements or hemp products attracts closer review of the same checks. Customer names and shipping destinations are screened, along with the IP location of the order, and an order routed to a sanctioned jurisdiction will be blocked regardless of the merchant’s intent.
Product legality also changes at the border. Hemp-derived goods legal in most American states are controlled substances in Japan and much of the Gulf. Supplements approved for sale in the United States require registration in the European Union. An acquirer will ask which countries a merchant sells into and will restrict the ones its own compliance team refuses to cover.
Duties, taxes, and the landed cost
Payment acceptance is only half the international question. The United States ended its duty-free exemption for parcels under $800 on August 29, 2025, and the end of de minimis shipping reversed the economics for millions of small cross-border sellers overnight. Other markets impose their own thresholds and value-added tax rules, several of which require the seller to collect tax at checkout.
Merchants who let the carrier bill the customer for duties on delivery generate refused parcels and chargebacks. Quoting the landed cost at checkout, duties included, costs a little conversion and prevents the dispute that follows a surprise customs bill.
Disputes across time zones
A cardholder in Melbourne disputing a charge gives the merchant the same short response window as a domestic dispute, with representment evidence often required in the issuer’s language. Delivery confirmation from a foreign carrier, translated correspondence, and a signed proof of delivery are the difference between winning and losing those cases.
Handling them means keeping tracking numbers and customer correspondence in one place per order, and answering within 48 hours of the notification.
The arithmetic of foreign sales
International expansion into a high-risk category is worth doing when the arithmetic clears. Take the foreign revenue at a realistic approval rate of 80%, subtract 1% for cross-border assessments, another 1% to 3% for currency conversion, the duty and tax collection cost, and the higher dispute rate the category already produces. What remains is the true margin on foreign sales. For most merchants that figure is 4 to 7 points below domestic margin, and the businesses that succeed abroad are the ones that priced for that gap before the first order arrived.
This content is provided for informational purposes only and is not a substitute for professional advice. AFP editorial staff were not involved in the creation of this content.
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