The couple - who got engaged in April - were recently reported to have been picking wines for a wedding at their home in Provence, France.
Pitt was asked directly if he and Jolie will be marrying soon while attending a screening of Killing Them Softly, reports E! News.
"No plans yet," he answered, adding: "Other than, we're gonna do it!"
The Moneyball actor went on to say that he and his family are busy right now spending quality time together in London.
"We've been having an amazing summer here," he said. "We started with the Euro Cup, Wimbledon, the Olympics, [Andy] Murray and the Paralympics, it's been a really exciting time to be here."
The couple have been together since 2004, after meeting on the set of Mr & Mrs Smith while Pitt was still married to Jennifer Aniston.
Jolie's engagement to Pitt was praised earlier in the year by her father Jon Voight.
"If they are happy - if they're going to have a wedding - it's wonderful," Voight said. "Of course, they're the parents of six kids. They've been that way for a while."
Jolie was previously married to Jonny Lee Miller from 1996 to 1999 and Billy Bob Thornton from 2000 to 2003.