to carry sth forward or to carry forward sth
+ balance, loss, tax relief结转后期扣减, 移后扣减(将法律允许抵免的税额, 尤其是营业亏损额, 从下一年度的应缴税收入中扣减, 以减轻总税负)
permitting the manager to carry forward any unspent balance允许经理移后扣减未用余额
You can carry forward unused tax relief.你可以移后扣减未使用的减免税额。