Transit One is a commuter benefits program from Aflac that allows employees to pay for transit and parking expenses with pre-tax dollars. By deducting these expenses from payroll before taxes, employees can reduce the amount of income subject to taxes. For example, an employee contributing $150/month to parking and $100/month to transit could see their taxable income reduced by $250, saving an estimated $62 in taxes compared to paying for expenses post-tax. The program provides tax savings opportunities and expanded benefits coverage while giving employees control over how their benefits dollars are used.