Employees use the W-4 form to decide how much of their withholding allowance the company is able to deduct from their paycheck. Basically, that means that people who claim more deductions have to pay less in taxes each paycheck. W-4 forms let you determine how many federal and state tax deductions you would like to claim.

The deductions you claim are related to the number of exemptions you qualify for on your taxes. The most basic example is yourself. You can claim yourself as a deduction even if you are already claimed as a deduction on someone else's tax return. This applies to both federal and state taxes.

Each of your children is counted as a deduction as well. Some other things that can affect the size of your withholding allowance include tax credits, retirement contributions, business losses, child support, and alimony.

It is important to make an informed decision about how many deductions you will claim when filling out your W-4 form. People who want to be able to use their money now and know how to manage it well can claim lots of deductions. This lets them receive more money in each paycheck. This tends to be a good choice for people who earn a low income.

If you receive a refund from the government after filing your taxes that means that you have allowed them to borrow the amount of your refund over the course of the past year. If you claim deductions and get that money ahead of time, you have the opportunity to earn some interest off of it.

Fortunately, you can change the number of deductions on your W-4 form whenever you deem necessary.

Some people claim as many deductions as they can and paying as little in taxes out of their income during the majority of the year and then adjust their W-4 as the year comes to a close so that more is deducted from their pay. This means they wind up paying little to nothing when filing taxes.