ATLANTA — NetBank said Monday that it has introduced an Internet banking service for the employees, sales consultants, and customers of Tupperware Corp.

The cobranded service will offer special promotions of NetBank products on Tupperware’s Web site and award bonuses to approved applicants when they fund their NetBank accounts. NetBank will pay Tupperware, a $1.1 billion supplier of food storage and preparation products, a fee for each customer it brings in through the affinity relationship.

The pay-for-performance deal is NetBank’s first with an affinity group and its second overall. It has a relationship with Ameritrade in which NetBank and the online brokerage pay each other fees for customers referred.

Internet banks are increasingly forming partnerships with large organizations to attract their members.

Through Orlando-based Tupperware, NetBank “gains access to a huge network of high-value, loyal customers,” said D.R. Grimes, NetBank’s chief executive officer. Because it only pays for funded accounts, NetBank can attract new customers at a relatively low cost, he said.

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