What taxpayers need know about using the IRS Tax Withholding Estimator Wed, 07/14/2021 - 4:00am All taxpayers should use the IRS Tax Withholding Estimator to check their withholding. This tool helps people make sure their ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today! Read more about What taxpayers need know about using the IRS Tax Withholding Estimator