W-9 Form For 2021 w-9 form for 2021, Individuals most commonly utilize IRS Form W-9 when they are working as a freelancer or independent specialist. In case that you ever find yourself completing a Form W-9, it implies that a company or individual who is paying you money requires your Social Security number so it can alert the IRS of the amount. The W-9 is utilized in a vast array of payment circumstances, however most frequently, taxpayers fill them out when they are working as a freelancer or independent contractor instead of a worker.W-9 Form For 2021