Contact us

The fastest way to reach us is email.

Email

[email protected]

For support, billing, refunds, legal notices and corrections.

What to include

  • A calculation question: the calculator page link, the dates you entered, and the result you expected.
  • A rule that has changed: the rule number and a link to the new text. We review every report.
  • Billing or refunds: the email you paid with and your Stripe receipt.

We cannot give legal advice about your case. For that, please contact a licensed lawyer in your jurisdiction.

Company details

Deadline Engine LLC
Delaware, United States