The redesigned W4 form no longer has allowances. We explain the five steps to filling it out and answer other FAQ about the form.To claim exempt, write EXEMPT under line 4c. You must apply to HCAD for any exemptions for which you qualify. Form W4 tells your employer how much tax to withhold from each paycheck. Learn more about how and when to adjust your W-4. Information about Form W4, Employee's Withholding Certificate, including recent updates, related forms and instructions on how to file. Changes you make to your W-4 Tax Withholding are effective upon your next payroll cycle and may not be immediately visible in the portal. To ask your employer to withhold an additional amount each pay period, complete lines 3, 4, and 5 on Form IT-2104, as applicable. The IRS automatically provides filing and penalty relief to any taxpayer with an IRS address of record located in the disaster area.