Links Helpful IRS Links Click this icon to go directly to the IRS website. Click this icon to check on the status of your refund Click this icon to make your EFTPS payments. Click this icon to fill out the application for your when starting a new business. Links to IRS Forms W-9 Request for Taxpayer Identification Number and Certification Employee's Withholding Allowance Certificate W-4 941 Employee's Quarterly Federal Tax Return Application for Automatic Extension of Time to File 4868 Helpful Links to State of Texas Click this icon for the State of Texas Entity Status. Click this icon for Fictitious Name Registration Helpful Links to Social Security Click this icon to go directly to the Social Security Administration website. Click this icon for Social Security Number verification social