Did you report Qualified Dividends and/or Capital Gains on your tax return?  If so, the taxes on your taxable income shown on Form 1040 Line 44 is calculated using the Qualified Dividends and Capital Gains worksheet, not the IRS tax tables.  See this IRS website for the QDCG worksheet - <a rel="nofollow" target="_blank" href="https://apps.irs.gov/app/vita/content/globalmedia/capital_gain_tax_worksheet_1040i.pdf">https://apps...>

No I did not ...but do not know how turbo figured it out...however , the IRS tables must be used because my income on line 44 of form 1040 is under $100,000, when these tables are used , my due tax is little over $10,000 , a big difference

To confirm - On your Form 1040 Line 43 your taxable income is showing as $74,000.  What is the amount shown on Line 44, Line 56, Line 63 and Line 74?

Form 1040 lines 44 and 56 showing tax due of about $3200 and line 75 showing tax payed around $2900 ...thanks

On Line 44 are there boxes checked for Form 8814 or Form 4972 or does box c have an entry or a written entry to the left of Line 44?
The taxes on $74,000 if only from the tax tables would be $10,176 if Married Filing Jointly or $14,278 if Single.

These boxed are not checked ...and $10176 is right...