New W-4s, withholding calculator debut

Written on Mar 04, 2018

The IRS has released an updated Withholding Calculator on IRS.gov and a new version of Form W-4 to help taxpayers check their 2018 tax withholding in the wake of tax reform.

The IRS urges taxpayers to use these tools to make sure they have the right amount of tax taken out of their paychecks.

The Tax Cuts and Jobs Act made changes to the tax law, including increasing the standard deduction, removing personal exemptions, increasing the child tax credit, limiting or discontinuing certain deductions and changing the tax rates and brackets.

If changes to withholding should be made, the Withholding Calculator gives employees the information they need to fill out a new Form W-4, Employee’s Withholding Allowance Certificate. Employees will submit the completed W-4 to their employer.

The withholding changes do not affect 2017 tax returns due this April. However, having a completed 2017 tax return can help taxpayers work with the Withholding Calculator to determine their proper withholding for 2018 and avoid issues when they file next year.

Among the groups who should check their withholding are:

  • Two-income families.
  • People with two or more jobs at the same time or who only work for part of the year.
  • People with children who claim credits such as the Child Tax Credit.
  • People who itemized deductions in 2017.
  • People with high incomes and more complex tax returns.

Taxpayers with more complex situations might need to use Publication 505, Tax Withholding and Estimated Tax, expected to be available on IRS.gov in early spring, instead of the Withholding Calculator. This includes those who owe self-employment tax, the alternative minimum tax, or tax on unearned income from dependents, and people who have capital gains and dividends.


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