Contact Us
Have a question, found a data issue, or want to suggest a new country or city? We'd love to hear from you.
Email Us Directly
The fastest way to reach us is by email. We read every message and typically respond within 1–2 business days.
What to Include in Your Message
To help us respond quickly, please include the following where relevant:
- Data issue: The page or calculator you were using, the inputs you entered, the result you received, and what you believe the correct value should be (with a source if possible).
- Feature request: A description of the country, city, or tool feature you'd like us to add.
- General question: As much context as you can provide so we can give you a helpful answer.
Frequently Asked Questions
Why does my result differ from my actual paycheck?
Our calculators assume a single filer with no extra deductions (401(k), HSA, dependents, etc.). Real paychecks include employer-specific withholdings, benefits, and credits that we don't model. Our numbers are planning estimates—for exact figures, check with your payroll department or a tax professional.
Do you support my country or state?
We currently cover the US (many states), UK (England/Wales/NI and Scotland), and Germany. We are actively adding more regions. If yours is missing, email us and we will prioritize it.
How often is your data updated?
We review and update tax brackets and social contribution rates at least once per tax year for each country we support. Cost of living indices are refreshed regularly. See our About page for details on our data sources.
Can I use your tools for official tax filing?
No. Our tools are for planning and comparison only. They are not a substitute for official tax-filing software or professional tax advice. Please read our Disclaimer for more details.
Please note: Do not send sensitive personal information, full tax records, or Social Security / National Insurance numbers via email. We cannot provide individual tax or financial advice. For personalized guidance, consult a qualified professional.