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Internal Revenue Bulletin 2009-39 · 2026-10-03 edition · updated 2026-10-04 · United States

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. 2009–27, page 404. Interest rates; underpayments and overpayments. The rates for interest determined under section 6621 of the Code for the calendar quarter beginning October 1, 2009, will be 4 percent for overpayments (3 percent in the case of a corporation), 4 percent for underpayments, and 6 percent for large corporate underpayments. The rate of interest paid on the portion of a corporate overpayment exceeding $10,000 will be 1.5 percent.

Rev. Rul. 2009–28, page 391. Fringe benefits aircraft valuation formula. The Standard Industry Fare Level (SIFL) cents-per-mile rates and terminal charge in effect for the second half of 2009 are set forth for purposes of determining the value of noncommercial flights on employer-provided aircraft under section 1.61–21(g) of the regulations.

Rev. Proc. 2009–41, page 439. This procedure provides guidance under section 7701 of the Code for an eligible entity that requests relief for a late classification election filed with the applicable IRS service center within 3 years and 75 days of the requested effective date of the eligible entity’s classification. The procedure also provides guidance for those eligible entities that do not qualify for relief under this revenue procedure and that are required to request a letter ruling in order to request relief for a late entity classification election. Rev. Proc. 2002–59 superseded.

Finding Lists begin on page ii. Index for begins on page iv.

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▸Contents — Internal Revenue Bulletin 2009-39

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