By the time midnight Monday, April 30, rolled around, a final total of 25,244,122 million Brazilians had sent in their 2012 income tax returns. That, at exactly 11:59:59 pm, was the official deadline. Almost all returns are filed via internet nowadays in Brazil.
According to the IRS (“Receita Federal”), Monday afternoon there was a spike in filings when during one hour, between 3:00 and 4:00 pm, 231,000 returns came in.