Contact Us & Report an Error

Notice an incorrect calculation, outdated statutory rate, or broken tool? Let us know so we can inspect and fix it.

Reviewed & updated:

Issue Report & Inquiries

Select the type of report you are submitting. When you click Compose Email, your email client will open with the subject line and formatted template ready to send.

Include the specific tool address if reporting a math or UI defect.

Privacy Notice: Never include passwords, Wi-Fi keys, actual employee names, tax identification numbers, or confidential contracts in your message. FivoTools will never ask for your private data.

Compose Email in Client

Direct Email Addresses

If you prefer to email us manually without the composer above, you may contact our specific functional inboxes:

How We Handle Error Reports

Mathematical errors compromise trust. When an issue report is submitted regarding a calculation formula:

  1. Our engineering team replicates the input set against both our pure engine test suite and independent authoritative references (IRS bulletins, OSHA standards, or published trade specifications).
  2. If a discrepancy exists, we correct the engine formula and add your specific case as a permanent regression test fixture.
  3. We release the fix, update the tool's visible "Reviewed & Updated" timestamp, and document the change in our revision log.