How do I correct my form when TurboTax enters the incorrect tax for the AGI amount per IRS Tables?

There  is not just one tax table.  Do you have---for example---any qualified dividends or capital gains?

If you have qualified dividends or capital gains they are taxed at a lower rate. 

Yes, you are correct. The rounding using the IRS required background details does create a few dollars difference overall on many tax returns. Keep in mind that TurboTax must obtain permission from the IRS to be able to submit tax returns and for the IRS to receive them.

There is no reason for concern. You can file your tax return with confidence.

@flyby961