Wells Fargo & Co. will roll out a new retail-banking compensation structure next week in an attempt to fix what many believe was one cause of its sales-tactics scandal.

San Francisco-based Wells Fargo is in the process of completing the final parts of the new plan, which will focus on customer service, customer usage and growth in primary balances, people familiar with the matter said. Before the scandal, which became public in September, retail bank employees had to meet lofty sales goals, which included selling eight...