Trump pledges to release his taxes, again, but does not say when.

President Trump — under fire from Joseph R. Biden Jr. over his low tax payments — again vaguely promised to release his tax returns once a federal audit was completed.

“I released all my tax returns. Twenty-two years — go look at them,” Mr. Biden said. “You have not released a single solitary year of your tax return. What are you hiding? Why are you unwilling? The foreign countries are paying you a lot. Russia is paying you a lot. China is paying you a lot.And your hotels, your businesses all around the country, all around the world. China is building a new road to a golf course you have overseas, so what’s going on? Release your tax return or stop talking about corruption.”

Mr. Trump, who had been trying to bait the former vice president over his son’s business activities, responded by claiming he would soon release his taxes.

“First of all, I called my accountants under audit,” he said. “I’m going to release them as soon as we can. I want to do it. And it will show how successful, how great this company is. But much more importantly than that, people were saying $750. I asked them a week ago. I said, what did I pay? They said sir, you prepaid tens of millions of dollars. I prepaid my tax.”