Contact IT1ST
Questions, suggestions and error reports go directly to the relevant tool’s IT1ST contact address.
Compound Interest Calculator
compound_interest_calculator
For a calculation question, include example values, your selected rate convention, compounding and deposit timing, plus the result you expected. Avoid private financial information.
Choice Wheel
For a wheel problem, describe your browser, what you tried and what happened. Use made-up choices if an example would help.
This website and privacy
For a broken hub link or a general privacy question, use either address above and mention it1st.com. Read how the site handles information. There is no contact form here; emailing shares the information you choose to send with IT1ST.
Do not send passwords, bank account numbers or sensitive personal information. We cannot recover wheels that were stored only in your browser after their site data is deleted.