Tax Refund Loans Are Revamped and Resurrected Fast, free cash. That’s what H&R Block, the nation’s tax-preparation chain that is largest, is marketing on giant ads outside its storefronts plus in television commercials featuring Jon Hamm of “Mad Men”: “You could easily get a reimbursement advance all the way to $1,250. ” It’s the first-time in six years that the business has agreed to front clients some cash from their...