[Jim Noble]

Here's why your refund may not be as high as you expect under the new tax law

Because you were smart and didn't get overwithheld in the first place?

[kearnyirish2]

See # 10; this new law is punitive to many middle class families. I’ve benefited a little from the doubled standard deduction, but been crushed by the elimination of personal exemptions. While the reduced withholdings put in place hurt, that can be addressed by changing withholdings; what can’t be addressed is the fact that I owe a few thousand more in overall federal income taxes themselves.

[zeugma]

Because you were smart and didn't get overwithheld in the first place?

Indeed. My optimal tax bill is $0. Where I don't get a refund, neither do I have to pay.