Carlos Queiroz has stated his intention to leave his position as Iran coach after the World Cup.
The Portuguese trainer extended his contract with the Asian nation in June, with that deal lasting until the end of the tournament in Brazil.
And while Queiroz revealed that the Iranian Football Association had offered him the chance to stay, the former Portugal coach believes financial restrictions mean he cannot take Iran any further.
"I will end my relationship [with Iran] after the World Cup," he told Publico.
"There was a moment when Iran proposed that I stay, and they still are showing that they want me here.
"But there is not enough support from the government, and it's clear that the interest in continuing doing the job we have been doing developing the national squads... is over due to financial conditions.
"The dialogue is over, and I already decided that I am not going to stay."
Queiroz witnessed Iran draw 0-0 with Nigeria in their Group F opener, and must now prepare his side for a showdown with Argentina, who are considered one of the favourites for the tournament.
The 61-year-old admits Iran face a near impossible task against a team he considers among the best in the world, but believes his side will be fully prepared.
"Argentina carry a top reputation in world football," he added.
"It's difficult to find another national team with so much credibility and reputation. They are among the top five teams in the world.”