How often should cost data be reported?

The frequency with which cost data are reported to CMS' RDS Center is at the discretion of the Plan Sponsor. There is no limit to the number of times cost data can be submitted or resubmitted for a month. Reported cost data submitted to CMS' RDS Center are used to build payment requests; therefore, cost data must be submitted before a payment request can be created and submitted by the Plan Sponsor. Payments can only be requested for the month(s) in which cost data has been reported.