On a conference call with reporters, Howard Wolfson offered a "categorical yes" when asked if the New York Democrat would make public this information with enough time to spare so that voters in the Keystone State could review it.
Prior to Monday, the Clinton camp had pledged that they would release the senator's tax returns which has not been made public since she and her husband left the White House in 2000, only before the Pennsylvania primary on April 20.
Several watchdog groups and Clinton critics have pressed the matter as evidence that the senator has been less than transparent about her record.
Wolfson, pivoting off his pledge to get the tax returns public three days before voters went to the polls, hit Sen. Barack Obama for not making this a "two-way street."
"We have a 20 to 1 advantage in terms of tax returns in the public record," he said. "If the Obama campaign is truly interested in disclosure they will offer their tax returns for every year that Senator Obama was in public office."