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I deleted the entire return, started new.  Entered 3000 as ordinary income and 2800 as qualified dividends, no beneficiary, no distribution.  I got the 600 exemption and the Qualified Dividends Tax Worksheet was the same as the one you posted.   Went  back and updated the 3000 to 3600.    Got the 600 exemption and now my Qualified Dividends Tax Worksheet on line 8 now shows 2600 as the amount taxed at 0%.   My question is , why wouldn't that still be 2800?