Daley said the Pilsen site and others that work with the city helped more than 18,000 families receive more than $26 million in refunds.
The mayor praised the federal earned income tax credit.
"This is an incentive for people to go to work, rather than go on welfare. It provides refunds up to $4,700 to low-income working families. That money is very welcome when you're trying to make ends meet," Daley said.
Chicago's mayor also reminded senior citizens and people with disabilities who might not file tax returns that, starting May 5, they should file to qualify for federal tax rebates.