Your employer will use the information you provide on this form—including residency, marital status, and allowances—to withhold these taxes from your pay. Gov (search: IT-2104-I) or scan the QR code below.Complete el Formulario W-4 para que su empleador pueda retener la cantidad correcta del impuesto federal sobre los ingresos de su paga. The following list of documents contain all of the Tax Forms which are available to you online. If you are looking for specific instructions or information Get answers to tax-related frequently asked questions including 1099, 5498 and other tax related forms.