TL;DR
Not everyone who wants to buy online can pay online the way card-centric markets assume. In much of Latin America and parts of Asia, a large share of buyers hold no international card and transact mostly in cash. Voucher-based payment methods bring those buyers into online commerce: they turn a cash payment made in the physical world into the settlement of an online order.
Here's how voucher payments work, where they matter, and how to accept them.
How a voucher payment works
The flow is different from a card or a bank transfer, and understanding it is the key to supporting it well. At checkout, instead of entering payment details, the buyer picks the voucher method and gets a payment code, often a printable slip or a barcode. The order is created as pending. The buyer takes that code to a physical or digital payment point, a bank, a convenience store, an agent, or their banking app, and pays, usually in cash. When the payment point reports it, you get confirmation and can fulfil.
The consequence that shapes everything is timing. Unlike a card authorisation, a voucher doesn't confirm at checkout. The buyer might pay in minutes or wait until the next day, so there's a genuine gap between order and confirmation. Vouchers are, by nature, an asynchronous method, and handling that pending window well is what separates a smooth voucher integration from a confusing one, a distinction covered in our guide to synchronous versus asynchronous payment methods.
Where vouchers dominate
Voucher methods concentrate in markets with large cash economies and significant unbanked populations, and each market has its own scheme.
In Brazil, Boleto is a cornerstone of online payments, a bank slip payable at banks, ATMs, or apps. In Mexico, OXXO lets buyers pay cash for online purchases at the country's vast convenience-store network. Across parts of Asia, convenience-store and over-the-counter payments play a similar role. What unites them is that they aren't a fallback for people who could have used a card. For many buyers, the voucher is the only way to complete the purchase at all.
Who vouchers reach
The reason vouchers matter is reach. In markets with large unbanked or underbanked populations, a substantial share of people can't pay with a card or an account-based transfer, because they hold neither. For those buyers, a voucher is the bridge between the cash they hold and the online purchase they want. Offering vouchers there isn't adding a convenience, it's opening the door to a segment a card-only checkout never reaches at all.
Accepting vouchers without the friction
Two things make voucher acceptance work.
The first is clear communication in the pending window. The buyer needs to understand they haven't paid yet, that they hold a code, and how long they have before it expires. A confusing pending state is where voucher conversions are lost, because a buyer who thinks they've paid won't go and pay.
The second is the fulfilment policy. Because confirmation is delayed, you generally hold the order until the cash lands, so your order system has to understand pending payments rather than treating checkout as completion. For physical goods that's straightforward. For time-limited offers it needs a clear rule on how long to hold, since vouchers fit poorly with strict deadlines.
There's also an expiry to set. The code is valid for a window, after which it lapses and the order should be released. Set that window sensibly, long enough for a buyer to reach a payment point, short enough not to tie up inventory indefinitely. It also shapes where vouchers fit: they suit physical goods and standard digital orders where a short hold is fine, and fit poorly with strictly time-limited offers, where the delay works against the sale.
A cross-border payment gateway that supports vouchers handles the mechanics: generating the codes, connecting to the local networks, tracking the pending state, and firing a confirmation when the cash lands. That lets you reach the cash economy of a market without building voucher infrastructure country by country, and without turning your order system inside out to handle the delay.
Vouchers are easy to overlook from a card-first vantage point. But in the markets where they dominate, they aren't a minor method, they're how a large part of the population buys online, and in those markets that's a decisive share of the total. Supporting them is how a cross-border business reaches buyers a card-only checkout never sees.
Sources
[1] World Bank. "Global Findex Database." 2026.
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