He was born in Presidencia Roque Sáenz Peña, the son of Daniel Capitanich and Mirca Popovich, who owned a small farm.

In 1994 he was named coordinator of a private-sector jobs-creation program in the Ministry of Assistance for the Reform of the Provincial Economy.

[3] While in that position under Duhalde, Capitanich was involved in the consulting firm M-Unit, for which he was accused of arranging covert government financing.

During his government, the work of the collector on National Route 16 was completed, which required an investment of more than 259 million pesos and which included the construction of embankments.

Also, the first section of the highway that connects Resistencia with Makallé, which required an investment of 160 million pesos and works on provincial route No.

[1] Capitanich also reportedly misdirected funds belonging to Santa Cruz province in a matter involving oil royalties.

In addition, he supposedly arranged “special pensions” for his parents[1] and, in August 2009, while serving as Governor of Chaco, falsely registered his mother, Mirca Popovich, as a resident of the province in order to avoid having to pay for 30,000 pesos' worth of medical treatment, an action that violated laws against forgery, registration of a false address, and other crimes.

Critics regarded his actions as particularly heinous given that Chaco is a very poor province while Capitanich was prosperous enough to afford to spend 300,000 pesos on his daughter's fifteenth birthday.

[9] In 1997 Capitanich received the Annual ADEBA (Association of Argentine Banks) Award for efficiency in social spending.