Walmart Canada stores will stop accepting Visa cards because the credit card provider charges merchants "unacceptably high" fees, the retailer said on Saturday.
Walmart has been unable to agree with Visa on an "acceptable fee" and will no longer accept the company's credit cards starting July 18, it said in a statement.
The company added it still hoped to reach an agreement with Visa.
The decision will not affect the U.S. stores of parent Wal-Mart Stores.
"Walmart made this business decision despite Visa offering one of the lowest rates available to any merchant in the country, a Visa spokeswoman said in a statement. "We are disappointed that Walmart chose to put their own financial interests ahead of their own consumers' choice."
Representatives of Walmart Canada and Visa declined to address questions on specifics of payment terms.
A Walmart Canada spokesman said the retailer pays more than C$100 million ($78 million) in credit card fees every year, but specific transaction fees are part of "confidential agreements."