परमसांवत्सरिकः परप्रचारसंक्रान्तो वा पर्युषितः ॥ कZ_०२.६.१९ ॥
paramasāṃvatsarikaḥ parapracāra-saṃkrānto vā paryuṣitaḥ
‘Carried-over/old’ income is that which pertains to a prior annual period, or that which has shifted into the present due to being transferred from another office/operation (parapracāra).
Because timing and responsibility differ from routine current receipts; it must be traceable to the originating period/office.