The Child Support Payment Center (CSPC) processes support payments in Minnesota. Payments can be sent to: Minnesota Child Support Payment Center, PO Box 64326, St. Paul, MN 55164-0326. The obligor's participant number should be included with every payment. Sending payments to a county child support office will delay the payment. Sending a payment directly to an obligee when the child support agency is handling the case may result in the obligor not getting credit for the payment.