Anderson, who has not played for South Africa’s Davis Cup team since September 2011, will apply for US citizenship next year.
“It’s not something I’m thinking about at all right now,” Anderson said yesterday.
“I’m South African, and, you know, there has been some Davis Cup issues where it’s sort of been tough for me with my schedule and stuff.
“But, you know, there are no thoughts of when I get my American passport to be playing Davis Cup for the States.”
The SA No 1, who has made himself unavailable for recent Davis Cup ties in order to focus on his steady rise in the ATP rankings, confirmed he would apply for dual citizenship.
“Travel-wise with visas and stuff, it will be a lot easier having the American passport.”
Anderson defeated Australian Open champion Stanislas Wawrinka of Switzerland 7-6, 4-6, 6-1 on Wednesday to reach the fourth round of the ATP Masters event at Indian Wells.
The in-form Anderson, ranked 18th in the world, recorded his first win in four matches against world No 3 Wawrinka.
He faced 17-time Grand Slam champion Roger Federer in quarterfinals late last night.
“I have to come out and focus on my game and just do what I have been doing,” he said.
“I feel like I have been playing good tennis.”
While Anderson was celebrating his victory over Wawrinka, he admitted he was facing a stiff challenge in his attempt to progress further.