Internal Revenue Service | Internal Revenue Service
Resource Name:Internal Revenue Service | Internal Revenue Service
address
1111 Constitution Ave NW, Washington, DC 20224-0001
Eligibility
All taxpayers, including small business owners and sole proprietors
Hours
Mon-Fri 7am-7pm
Website
https://www.irs.govApplication process
Call or visit website; Contact to confirm documents required
Fees
None for information
Service area
All ZIP Codes, AZ
Federal tax collection agency administers the Internal Revenue Code enacted by Congress. Provides information by phone and online to help people understand and meet their tax responsibilities. Website provides forms which can be downloaded, and information about tax return corrections, penalties and penalty relief, refunds, deductions, and credits (Earned Income Tax Credit, education, child care, adoption, Saver's Credit, Welfare-to-Work, and Work Opportunity Tax Credit). Also provides answers to frequently asked questions for individuals, businesses, and nonprofits.
Last Assured
09/01/2026
What's Here
Federal Education Tax Credit InformationGeneral Federal Income Tax InformationAdvanced Earned Income Credit InformationTaxpayer Information LinesState Earned Income Tax Credit InformationTax FormsGeneral Business Tax InformationWelfare to Work Tax Credit InformationEarned Income Credit InformationFederal Child and Dependent Care Tax Credit InformationWork Opportunity Tax Credit InformationFederal Child Tax Credit Information
Providing organization
Internal Revenue Service
Federal tax collection agency administers the Internal Revenue Code enacted by Congress. Provides information by phone and online to help people understand and meet their tax responsibilities. Website provides forms which can be downloaded, and information about tax return corrections, penalties and penalty relief, refunds, deductions, and credits (Earned Income Tax Credit, education, child care, adoption, Saver's Credit, Welfare-to-Work, and Work Opportunity Tax Credit). Also provides answers to frequently asked questions for individuals, businesses, and nonprofits.