"Corporations are in a wait-and-see mode and holding back on investment decisions that would help boost the economy," said Michael W. McCormick, the trade group's executive director and chief operating officer.
The group cites a lack of significant job creation in the sectors that would spur business travel and worries about whether a package of steep tax increases and sharp government spending cuts can be avoided as major factors hurting business travel plans.
The economy is adding jobs and the unemployment rate recently dipped below 8 percent for the first time in four years. But jobs have been concentrated in sectors like retail, restaurant and manufacturing — areas where employees don't tend to travel much. As a result, business travel is not getting the bounce that was typical of past recoveries.
The travel group said fears of the so-called "fiscal cliff" scheduled to kick in at the beginning of next year without action to stop it are "the darkest cloud" on the economic horizon. It predicts the economy will slide back into recession if government officials don't soften the blow.
"This is an economy in need of some good news to shore up business confidence and encourage more travel," McCormick said.
Next year, the outlook for business travel is somewhat brighter. GBTA forecasts total spending will rise 4.9 percent to $270 billion, a slight increase from their forecast three months ago. Total trips, though, are expected to fall 1.1 percent.
The organization expects trips from the U.S. overseas will also be constrained by worries overseas, including recession in Europe and slower growth in China.