Benzinga and Yahoo Finance LLC may earn commission or revenue on some items through the links below. Imagine working for years only to find out your employer's payroll system thinks you're a newborn. That's what one Reddit user recently discovered after realizing a clerical error had kept them from contributing to their 401(k). The post, shared in r/personalfinance, described how the employee's company entered their hire date as their birthdate. Because of that single mistake, the system decided they were ...