Information For...

For you and your family
Standard mileage and other information

Forms and Instructions

Individual Tax Return
Instructions for Form 1040
Request for Taxpayer Identification Number (TIN) and Certification
Request for Transcript of Tax Return

 

Employee's Withholding Allowance Certificate
Employer's Quarterly Federal Tax Return
Employers engaged in a trade or business who pay compensation
Installment Agreement Request

Popular For Tax Pros

Amend/Fix Return
Apply for Power of Attorney
Apply for an ITIN
Rules Governing Practice before IRS

Time for a Paycheck Checkup

Following tax law changes, you should do a paycheck checkup using the IRS’s Withholding Calculator and, if necessary, complete a new  W-4 form. The calculator helps determine the right amount of withholding.

You should check if you:

  • Are a two-income family.
  • Have two or more jobs at the same time or only work part of the year.
  • Claim credits like the child tax credit.
  • Have dependents age 17 or older. 
  • Itemized deductions in 2017.
  • Have high income or a complex tax return.
  • Have a large tax refund or tax bill for 2017.

See IRS.gov/taxreform for more information.