Story highlights Trump said people don't have a right to see his returns

He said he would like the IRS audit to wrap up before November

Washington (CNN) Donald Trump maintains he'll release his tax returns eventually -- but until then?

"None of your business."

That was Trump's answer to ABC's George Stephanopoulos on "Good Morning America" on Friday when the show host asked what the mogul's tax rate is.

"It's none of your business, you'll see it when I release. But I fight very hard to pay as little tax as possible," Trump said.

Stephanopoulos pressed Trump on why he has said he won't release his tax returns until audits of them are complete, since he has previously released them for a casino deal under similar circumstances and since the IRS says nothing precludes someone under audit from disclosing their returns.

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