Contact the Research Project
Last Updated: April 2026
We welcome feedback, bug reports, and questions regarding our tax calculation methodology. As an independent research project, we are constantly looking to improve the accuracy and educational value of our tools.
Get in Touch
If you have questions about the tool or noticed a discrepancy in the state tax data, please reach out to us at our current working email:
Messages sent to this project do not create a CPA-client, attorney-client, or any other professional relationship. We cannot provide personalized tax, legal, or financial advice. If you need assistance with your specific tax situation, please consult a qualified professional in your jurisdiction.
Frequently Asked Questions
Before reaching out, you may find the answer to your question in our core resource guides:
Compliance Links
For more information on how we handle data and our professional limitations, please review our: