my taxable income is $8,054 ($22,654 - $14,600), why it's 12% tax rate, it is under $11,600. should only subjected 10% and pay $806 instead of $966. Please help.

I suggest you look at your actual 1040tax return.

From the left sidebar

1. Select Tax tools
2. Hint: You may have to minimize the Federal and State selections
3. Click Tools
4. A Menu will pop up
5. Select View tax summary
6. On the left panel click Preview my 1040

Some Key numbers to compare:

• 11 Adjusted Gross Income
• 12 Deductions
• 15 Taxable income
• 16 Tax
• 33 Total Payments
• 34 Overpayment
• 35a Refund
• 37 Amount you owe

I clicked "Tax Tool", and I saw the total income is still the same, $22,654, and deduct the standard deduction $14,600, taxable income is $8,054, so the question is still the same, $8,054 is 10%, why turbo tax use 12%? thank you.