Millions of Americans are paying a high price for a safe place to put their money: extremely low interest rates on savings accounts and certificates of deposit.

The elderly and others on fixed incomes have been especially hard hit. Many have seen returns on savings, C.D.’s and government bonds drop to niggling amounts recently, often costing them money once inflation, fees and taxes are considered.

“Open a Savings Plus Account today and get a great rate,” read an advertisement in the Dec. 16 Newsday for Citibank, which was then offering 1.2 percent for an account. (As low as it was, the offer was good only for accounts of $25,000 and up.)

“They’re advertising it in the papers as if they’re actually proud of that,” said Steven Weisman, a title insurance consultant in New York. “It’s a joke.”