Inter are expected to open official talks with Real Madrid for Kaka in November after Massimo Moratti agreed to the move.
Il Corriere dello Sport reports that Moratti consulted his directors on Friday in which he decided to approve the move for Kaka. But there are conditions.
Inter want a loan in January with the obligatory option to buy him permanently after one season - a deal that mirrors Milan's move for Zlatan Ibrahimovic.
The Nerazzurri will also pay Real Madrid in different installments on a yearly basis.
However, the club have specified that they will only take on Kaka if they are guaranteed that he is fully fit and has no recurring injuries.
That is a cautious approach stemming from last year's hype when Madrid accused Milan of selling them an injured Kaka.
The news coincides with Marco Tronchetti Provera's comments yesterday when he said, "I would like to see Kaka in an Inter shirt".