carry sth back
phrasal verbwithcarryverb[T]uk/ˈkæri/us
ACCOUNTING
tocopyanamountofmoneyon anearlierpageorcolumnof anaccount, or tomoveit to anearlieraccountingperiod:
carry sth back to sthCompaniesoperatingat alosscancarrybackcurrentlossestoperiodsin whichprofitswere made to get ataxrefund.
You have untilJanuary31 tocarrybackpensioncontributionsto theprevioustaxyearandclaimunusedtaxrelief.