Should I claim a dependent on my paycheck or will it hurt my tax return?

<p>I got a raise last week, and i make around 90 hours a week in the summer, but now with the raise i've had $700 come out of my paychecks, and im thinking about adding a dependent to my paycheck.</p><p>I currently am claiming single on my paycheck, but I have a family of four.Obviously something needs to change, but I dont want to owe when I file taxes.</p>