FCA said it’s paying less for its deposits.

The nation’s largest S&L; holding company said its cost of funds in January was 10.3%, down from 11.8% in September. Irvine-based Financial Corp. of America attributed the decrease to dropping interest rates and its lower “deposit pricing structure.” FCA, parent company of American Savings & Loan Assn., said its deposits increased by $103 million in January and now stand at $20.43 billion.