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Form W4 (2018) Future developments. For the latest information about any future developments related to Form W4, such as legislation enacted after it was published, go to www.irs.gov/FormW4. Purpose.
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How to fill out 2018 form w-4

01
Start by filling out the personal information section at the top of the form, including your name, address, and social security number.
02
The next section is for your filing status. Choose the appropriate status (e.g., single, married filing jointly, etc.) and indicate the total number of allowances you are claiming.
03
If you have multiple jobs or a working spouse, you may need to use the Two-Earners/Multiple Jobs Worksheet to determine the correct number of allowances to claim.
04
The next section asks about any additional amount you want withheld from each paycheck. If you want extra taxes withheld, enter the amount in this section.
05
If you have any exemptions or exemptions from non-wage income, you should complete the Deductions, Adjustments, and Additional Income Worksheet. This will help you determine the correct number of allowances to claim.
06
Finally, review the completed form for accuracy and sign and date it before submitting it to your employer.

Who needs 2018 form w-4?

01
Anyone who is starting a new job and wants to ensure the correct amount of federal income tax is withheld from their paychecks needs to fill out the 2018 form W-4.
02
Additionally, anyone who has experienced a significant life change (e.g., marriage, divorce, birth of a child) should also update their form W-4 to reflect the new tax status.
03
It is also a good idea to review and update the form W-4 on an annual basis to account for any changes in income or tax liability.
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Form W-4 is the Employee's Withholding Certificate used by employers to determine the correct amount of federal income tax to withhold from an employee's paycheck.
All employees are required to fill out Form W-4 so that their employer can withhold the correct amount of federal income tax.
Employees need to provide their personal information, filing status, and any additional withholding allowances on Form W-4.
The purpose of Form W-4 is to ensure that the right amount of federal income tax is withheld from an employee's paycheck based on their individual circumstances.
Information such as name, address, Social Security number, filing status, and any additional withholding allowances must be reported on Form W-4.
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