HIGHLIGHTS OF THIS ISSUE

These synopses are intended only as aids to the reader in identifying the subject matter covered. They may not be relied upon as authoritative interpretations.

INCOME TAX

Rev. Rul. 2012–16, page 1035. Interest rates; underpayments and overpayments. The rates for interest determined under section 6621 of the Code for the calendar quarter beginning July 1, 2012, will be 3 percent for overpayments (2 percent in the case of a corporation), 3 percent for the underpayments, and 5 percent for large corporate underpayments. The rate of interest paid on the portion of a corporate overpayment exceeding $10,000 will be 0.5 percent.

Notice 2012–40, page 1046. This notice provides guidance on the limits in section 125(i) of the Code on salary reduction contributions to health flexible spending arrangements, effective for cafeteria plan years beginning after December 31, 2012, and also requests comments on possible modification to the “use-or-lose” rule in the proposed section 125 regulations.

Notice 2012–42, page 1049. Credit for carbon dioxide sequestration; 2012 section 45Q inflation adjustment factor. This notice publishes the inflation adjustment factor for the carbon dioxide (CO2) sequestration credit under section 45Q of the Code for calendar year 2012.

EMPLOYEE PLANS

Notice 2012–43, page 1050. Weighted average interest rate update; corporate bond indices; 30-year Treasury securities; segment rates. This notice contains updates for the corporate bond weighted

Finding Lists begin on page ii. Index for January through June begins on page vi.