Federal income tax is one of the few big bills you can adjust in real time, and Form W-4 is the lever that controls it. If your life, your job, or the tax rules have shifted, keeping an old W-4 on ...

Taxes are a certainty, but there's no reason to pay a penny more than the law allows. Understanding W-4 allowances and using them properly may not mean you pay less taxes, but it can put more money in ...