Seeking to dismantle a black economy dragging on economic growth, Mexico wants to lure informal workers into the social security net - and the reach of the tax man.

Six in 10 Mexican workers, or 30 million people, live in the informal economy, eroding Mexico's already-low tax base and hindering plans to set up a universal social security system.

"The country loses 3 or 4 percentage points of GDP every year because 60 percent of its workers don't generate any taxes and also don't have social security benefits," Labor Minister Alfonso Navarrete said on Tuesday.