He studied Topography and Surveying in Luanda and specialized in Cartography in Switzerland. He is president of the Timorese Democratic Union (UDT) which he also co-founded. He supervized the August 11th 1975 coup which eventually started the civil war. The latter forced the governor, Lemos Pires, to flee as well as the Portuguese contingent stationed on the nearing island of Ataúro. Consequently Carrascalão moved to Australia and resided there throughout the Indonesian occupation. He integrated the leading agencies of the CNRT. He moved back when East Timor's independence was finally given.
In the 2007 presidential election, he took eighth and last place with 1.72% of the vote.