In SAP System you can copy cost center plan to current year plan to next year and make the necessary adjustment, You can copy cost center data using transaction code KP97.
Select Template Cost Center to copy from cost center, if you would like to copy from one cost center to multiple cost center, select CHOOSE TEMPLATE and click the SELECTION button to choose template.
You can see the selection screen we will copy all cost center data from version 0 fiscal year 2015 to version 1 fiscal year 2016. with this transaction KP97 you can create multiple version for different scenario. for maintaining version you can use transaction OKEQ.
You can copy actual to plan cost center data with transaction KP98 with selection screen similar with KP97.