Freddie Mac: 30-Year Fixed-Rate Mortgage All Time Low of 3.40%

Freddie Mac's weekly Primary Mortgage Market Survey -- released September 27 -- shows fixed mortgage rates breaking their previous average record lows helping to keep homebuyer affordability high and refinancing strong to support an already improving housing market.

• 30-Year fixed rate mortgage averaged 3.40%, down from 3.49% last week and 4.01% one year ago

• 15-Year fixed rate mortgage averaged 2.73%, down from 2.77% last week and 3.28% one year ago

Average commitment rates should be reported along with average fees and points to reflect the total upfront cost of obtaining the mortgage. Borrowers may still pay closing costs which are not included in the survey.

To compare and track average mortgage rates from previous weeks throughout the year consult Freddie Mac's Compilation of Weekly Survey Data for 2012.

Mortgage calculators to compare payments and equity:

• Freddie Mac
• Bankrate.com
• The Federal Reserve Board

Freddie Mac was established by Congress in 1970 to provide liquidity, stability and affordability to the nation's residential mortgage markets. Freddie Mac supports communities across the nation by providing mortgage capital to lenders.