When Cathcart sold the paper a year later, it changed from a weekly to a daily format, focusing on more typical newspaper content, but always with a large shipping section.

[3] The Evening Post Publishing Company from Charleston, South Carolina, United States, purchased a controlling interest in Junius Rugeroni's holdings in 1968.

During the military dictatorship in Argentina (1976–1983) The Buenos Aires Herald, under the direction of the British journalist Robert Cox, was one of the few local media that told the story of the forced disappearances of people from the opposition to the regime.

The Buenos Aires Herald's brave stance stood out among the Argentine press leading to controversy within the readership, as the English-speaking newspaper had been traditionally anti-Peronist and had supported all the military coups throughout the 20th century.

[13] In 2017, Amazon Prime premiered a documentary titled Messenger on a White Horse[14] about the brave role played by editor Robert Cox standing up to the dictatorship.

During the Malvinas/Falkland war, in 1982, Cox, Graham-Yooll and Neilson accused the Herald's then-editors of submitting to the chauvinist stance of the dictatorship, although the newspaper continued reporting on human rights violations.

In January 2015, Damián Pachter, a journalist for the Herald's online version, broke the news of prosecutor Alberto Nisman's death to the country on Twitter.

Nisman died the day before he was set to give details at Congress regarding his legal charges against President Cristina Fernández de Kirchner for allegedly covering up the investigation into the 1994 AMIA Jewish community centre bombings.

The paper had moved to weekly publication after the last daily edition on 26 October 2016, shedding most of its staff after "facing difficulties for a while now",[22] but with the drop in circulation it was not able to survive financially.