The 50/50 rule for home appliances is a widely utilized financial guideline to help homeowners determine whether it is more cost-effective to repair a broken appliance or purchase a brand-new replacement. The rule states that if an appliance has already consumed approximately 50 percent or more of its expected operational lifespan and the estimated cost to repair the current malfunction exceeds 50 percent of the price of a brand-new replacement unit, investing money into the repair is generally ill-advised. Instead, putting those funds toward a new appliance provides better long-term value, avoiding a cycle of recurring failures.