Written by Lorrie Contreras | Last updated: February 2026
Arizona does not license tax preparers the way some states do, which means the range of quality varies significantly. Here is how to evaluate a tax preparer before trusting them with your return.
What to Look For
- PTIN (Preparer Tax Identification Number): The IRS requires all paid preparers to have a PTIN. Ask for it and verify it on the IRS directory.
- e-File authorization: Check the IRS e-File Provider Locator to verify they are authorized.
- Credentials: CPAs, Enrolled Agents (EAs), and tax attorneys have specific training and are held to continuing education requirements.
- Willingness to sign: By law, paid preparers must sign your return and include their PTIN. Never use a preparer who refuses to sign.
Red Flags
- Promises of inflated refunds before seeing your documents
- Fees based on a percentage of your refund
- Refusal to e-file
- No PTIN or refusal to provide one
- Asking you to sign a blank return
- No physical business address
Questions to Ask
- What is your PTIN?
- Are you an authorized IRS e-file provider?
- How do you charge — flat fee or percentage?
- Will you sign my return?
- How do you handle errors after filing?
- How do you protect my data?
Arizona DOR Guidance
The Arizona Department of Revenue encourages taxpayers to carefully select their tax preparers and provides resources on their website.
Looking for a Mesa-based preparer? Learn about our credentials or contact us.