Eligibility to use your commuter benefit account balance for new expenses ends after your last day of employment. In most cases, you will have up to 60 days to submit reimbursement requests for eligible expenses incurred while you were still actively employed (this is known as the “run-out period.”) Check your employer’s plan documents for specifics with respect to your plan. Unused commuter benefit balances after the run-out period will be forfeited, per plan and IRS rules.