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AZ Tax-Aide Volunteers Website

This portion of our website provides information, tools and links strictly for use by our volunteers. It is not for public consumption.

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HAVING TECHNICAL DIFFICULTIES? Click here!
Cactus Guide TY25^ (2.1.26)
Pub 4012 (link)^
AARP National Volunteer Portal
Colorado Toolbox
  1. Web Accessible Tools (full list)^
  2. Annuity/Pension Calculator
  3. Business Activity Code List
  4. Dependent Qualification Calculator
  5. Education Calculator
Fast FAQs
Practice Lab
OBBBA Implications

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  • AZ DOR Guidance on 2025 Tax Year FilingJanuary 30, 2026
  • Law Enforcement GuidanceJanuary 26, 2026
  • 2025 Tax Implications of the One Big Beautiful Bill ActOctober 12, 2025

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IRS
TAX
TIPS

  • Tax Tip 2026-63: The top 5 tips for extension filersAugust 18, 2026
  • Tax Tip 2026-62: Heavy highway vehicle owners: Know the Form 2290 filing deadlinesAugust 11, 2026
  • Tax Tip 2026-61: How to request help with the IRS Independent Office of AppealsAugust 6, 2026

This web site was created and is maintained by Arizona volunteers of AARP Foundation Tax-Aide program. It is not supported nor endorsed by the state of Arizona nor the AARP Foundation.  While accuracy is a key value of this web site, official IRS, Arizona Department of Revenue, and AARP Foundation Tax-Aide documents take precedence.

© 2026

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