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2017 tax form - w4 with money.
2017 tax form - w4 with money.
alfexe—Getty Images/iStockphoto

Filling out tax forms can be tough especially if it’s your first time. The most common form you have to fill out before starting a new job is the W4. The W4 form helps your employer to figure out how much federal tax to withhold from your check. The more allowances you claim on your form the less federal income tax will be withheld from your check, but the fewer allowances you claim on your form more federal income tax will be withheld from your check.
Although, many will fill out a W4 form at the start of a new job it is important to update the form should you have any significant life changes. Life changes can include marriage, the birth of a child or a significant pay increase.