Citi Benefits Handbook
At any time, up until June 30 of the following plan year, you may be reimbursed for eligible expenses up to the total amount you elected to contribute for the plan year. In order for a claim to be deemed an eligible expense to be reimbursed, you must provide any pertinent documentation to establish that a claim is eligible for reimbursement, which may include providing documentation that a service provided in connection with a claim was medically necessary.
If you increase your contributions during the year because of a qualified change in status, you may be reimbursed from the increased amount only for expenses incurred after the date of the qualified change in status.