As reported, Arashi was the host of NHK Kohaku Uta Gassen for the third year in a row. They also ranked in the top of 2012 CM income rankings with 12 CMs for Sakurai Sho, 10 CMs for Matsumoto Jun, Kazunari Ninomiya, Masaki Aiba and 9 CMs for Ohno Satoshi. ARASHI LIVE TOUR Beautiful World sold 714,000 copies amount to 4.09 billion yen and became the top music DVD in Oricon sales ranking for 2012.
Then why are they only earning an average of 24 million yen a year? A certain well-informed person exposes the trick on condition of absolute anonymity. According to this person, it is called Johnny's welfare system which will guarantee performance fee payments to Johnny's talents with high interest rate of 5%. And only a handful of Johnny's talents can meet the condition to receive this treatment. He has heard that it is restricted to people of annual sales of 100 million yen or more only. And the people who met this condition are: Arashi, Kanjani8, TOKIO, Kinki Kids and Yamashita Tomohisa. SMAP is not included in this line up. SMAP is an exception because all of SMAP incomes are going through SMAP's Chief Manager, Ms. Iijima. Only SMAP is the exception (the above-mentioned well-informed person). As a result, a gap arises between annual incomes of other Johnny's talents and SMAP members like Masahiro Nakai who makes 600 - 700 million yen a year and Kimura Takuya who makes 500 - 600 million yen a year.
Why has Johnny adopted such a welfare system ? It would become a remarkable burden with the 5% of high interest rate. The reason is Johnny does not retire his talents. It's possible for them to pay the talents in tens of million yen a year during the span of their careers. It is said that a great number of talents will slack off of work, or not carrying out their workloads if hundreds of millions of yen performance fee is suddenly given for an annual income. He has heard that it is a plan of President Johnny Kitagawa who also got this from experience (the well-informed person above). However, it is said that those qualified Johnny's talents will receive payments in hundreds of million yen once they return to private life or when cash becomes necessary suddenly for marriage or a family.
Source: johnnys-watcher translated by 4miu_miu
I don't know how reliable this is since it's from Tokyo Sports..