The W-4 Form is utilized by employers to calculate the amount of tax they need to withhold from their employees’ wages, salary, or other monetary compensation. Strangely, though it should match the tax due on 1040 series IRS forms, the two amounts frequently differ substantially!

Why should this be? Well, when an employee fills out a Form W-4 (the official name) and stipulates the amount of allowances to be claimed, he or she is basing the claim in large part on the expected tax filing situation for the year – namely, how much he or she is expecting to earn.

Every allowance reduces the amount of federal income tax withheld, which in turn lowers the tax refund that may be due. In fact, one’s tax liability may possibly even be raised!

No interest is paid by the government in instances of over-withholding, but if, due to those allowances claimed, under-withholding results, the employee will need to pay penalties at a certain point. The situation is rendered all the more difficult for some because of the fact that it’s possible to claim different numbers of allowances between a W-4 Form and a 1040 series form.

Another potential source of misunderstanding entails the fact that the W-4 Form doesn’t deal with seasonal employment. Just a casual layman’s perusal of tax policies at the level of the end-user shows how really esoteric tax laws can be! When even simple matters like reporting income and claiming allowances can be subject to such nuance and variability, one really does wonder just to whom these laws are supposed to benefit.

Yet believe it or not, though wider tax policies at the macro level may be open to debate, many of the little nitty-gritty details such as those layed out here were actually intended to help rather than hinder or even hurt.