Question about Standard Deduction

[MCremer]

How do I still owe money to the IRS after withholding when the standard deduction went from $6,350 in 2017 to $12,000 in 2018?

[DanielV01]

We would need more information about your income amount and type in order to answer your question accurately.  Please feel free to provide additional detail.

[SweetieJean]

See OP's other questions:
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[SweetieJean]

Well, there is no more $4,050 Personal Exemption.
$6350 + 4050 = $10,400 in 2017. This has been replaced by $12,000 in 2018.

[Hal_Al]

Although the standard deduction increased, the personal exemption was eliminated. Effectively the deduction before taxes was only increased by $1700.