Accepting UnionPay as a merchant

Support is broad among acquirers serving international commerce, so it is not a differentiator. What differs is pricing. UnionPay volume frequently sits outside the main negotiated rate card, priced as an exception, and exceptions are where margin hides. If UnionPay is a meaningful part of your inbound revenue and you cannot see its effective rate as a separate line, it is not being managed.

The section above says that decision is usually made by default. Here is what making it deliberately looks like.

There are two arrangements. In the first you present and settle in your own currency, and the cardholder’s issuer converts, applying its own rate and its own margin. You see a clean price, the customer sees a number they could not have predicted, and none of the conversion margin is yours. In the second you present the price in the customer’s currency at checkout, your provider converts, and the spread is shared between your provider and you on terms that are negotiable and almost never negotiated.

Three questions settle it. What conversion rate is applied and against which reference, what margin sits on top of it, and what share of that margin comes back to you. Then one more that is easy to forget: what the customer sees at the moment of paying. A Chinese customer looking at a price in euros is estimating. A Chinese customer looking at a price in renminbi is deciding. On inbound traffic that difference shows up in completed orders rather than in the fee line, which is why the currency question is a conversion question wearing a cost question’s clothes.

If you sell in Australia this matters. The Reserve Bank of Australia’s March 2026 Conclusions Paper removes surcharging on the designated networks from 1 October 2026, and UnionPay has confirmed it supports the reforms and is working to remove surcharging from the same date. For merchants who have been recovering the cost of international cards through a surcharge, that recovery ends and the cost moves to margin.