Should I reduce amount of federal taxes withheld from my IRA now that the standard deduction has doubled?

[Carl]

Personally, I wouldn't change a thing until after I have filed my 2018 tax return in 2019. That way I will "KNOW" for a fact what I need to do.

[SweetieJean · Accepted solution]

Possibly. But be aware that there are no longer any Personal Exemptions ($4,050 per person), so take that into account.

And remember your state taxes.