The Los Angeles Metropolitan Transportation Authority, for example, says the rate it is paying on $132 million in variable-rate notes has soared to as much as 12%, from as little as 1%. That's a difference of as much as $1.2 million in interest a month. The MTA says it may also have to pay $50 million to retire interest-rate swaps it purchased to hedge against interest-rate changes on the original notes.
When variable-rate notes were first developed in the 1980s, they looked like a good deal for issuers as short-term interest rates in the municipal market consistently undercut long-term rates by as much as 3 percentage points. On a $5-billion bond issue, that difference would mean savings for taxpayers of $150 million a year.
Between 1999 and 2007, states and municipalities across the country issued $420 billion in variable-rate notes, Lockyer's office said. California municipalities and the state itself have more than $60 billion of such bonds outstanding.
"Over the years, they saved us a lot of money," Deputy California Treasurer Paul Rosenstiel said in an interview. "It was a prudent thing to have a certain amount of our debt at a variable rate."