# reservation/UnusedAmortizedUpfrontFeeForBillingPeriod #level100 #cur #finops #curfield ## Source - Category: [[Reservation details]] - [AWS documentation](https://docs.aws.amazon.com/cur/latest/userguide/reservation-columns.html#r-U) - [[lineItem_LineItemType]]: RIFee ## Relevant notes - This line only applies to [[Reserved Instances]] ## Notes - How much of the upfront fee has not been yet consumed. This value is in the RIFee [[lineItem_LineItemType]] and will *change at every new cur delivery* as - At the first hour of a new month, this value is the full amount of the amortised upfront fee, as nothing is yet consumed. - Each time a DiscountedUsage line is created - a VM is consuming the RI - this value is updated as part of the upfront fee is being consumed. - In a graph, this field starts like a spike that reduces when the RI is used - At the end of the month whatever is left in this field has been wasted. - This value is 0 for no-upfront RI