If you are an employee, the Tax Withholding Estimator helps you determine whether you need to give your employer a new Form W-4, Employee's Withholding Allowance Certificate (PDF). You can use your results to help fill out the form and adjust your income tax withholding.  If you receive pension income, you can use the results from the estimator to complete a Form W-4P (PDF) and give it to your payer.

Nearly 2 million Individual Taxpayer Identification Numbers (ITINs) are set to expire at the end of 2019 as the Internal Revenue Service continues to urge affected taxpayers to submit their renewal applications early to avoid refund delays next year.

Despite the government shutdown, the Internal Revenue Service confirmed that it will process tax returns beginning January 28, 2019 and provide refunds to taxpayers as scheduled.