Our calculators use official data from government agencies and central banks. Results are estimates and may not reflect your exact situation. Always consult qualified professionals for personalized advice.

Do you store my financial data?

No. All calculations happen locally in your browser. We never transmit or store your financial input data on our servers.

How often do you update tax rates and data?

We update data regularly — typically annually for tax brackets and as needed for interest rates. Each calculator shows the last verified date and data source.

Can I use your calculators commercially?

Our calculators are free for personal use. For commercial use or API access, contact us at info@f0x.ai.

I found an error in a calculator. What should I do?

Email info@f0x.ai with the calculator name, your inputs, and a description of the issue. We take accuracy seriously and will investigate promptly.

Can you add a calculator for my country?

We're working toward broader coverage. Check our roadmap on the About page, or email info@f0x.ai to suggest priority countries.