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INCOME TAX
Internal Revenue Bulletin 1999-18 · 2026-10-03 edition · updated 2026-10-04 · United States
Rev. Rul. 99–21, page 3. Federal rates; adjusted federal rates; adjusted federal long-term rate, and the long-term exempt rate. For purposes of sections 1274, 1288, 382, and other sections of the Code, tables set forth the rates for May 1999.
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