All taxpayers should review their withholding annually. They can use the IRS Tax Withholding Estimator to check and make sure they're not having too little or too much federal tax withheld. This tool offers workers, retirees and self-employed individuals a step-by-step method to help figure out if they should adjust their withholding.

October 15 is almost here. That's the last day to file for most people who requested an extension for their 2019 tax return. These taxpayers can file any time before Thursday, October 15 if they have all their required tax documents. They can also pay part or all of their taxes anytime on IRS.gov.

Every year the IRS mails letters or notices to taxpayers for many different reasons. Here are some do’s and don’ts for taxpayers who receive one.

Taxpayers can use the Where’s My Refund tool to start checking on the status of a refund 24 hours after the IRS acknowledges receipt of the e-filed tax return.