How to estimate federal income tax to withhold? Remind your employees to complete the new W-4 form and sign it. Use the Form W-4 to complete the worksheet in IRS publication 15-T Federal income tax withholding methods based on the withholding method you chose to use. Publication 15-T Federal Income Tax Withholding Methods: https://www.irs.gov/pub/irs-pdf/p15t.pdf You … Continue reading How do I manually calculate payroll taxes Free Payroll Spreadsheet 2023