Contact
Found a bug, have an idea or a question about the data? We usually reply within 2 business days.
kontakt@liczbnik.pl · reply within 2 business days
- kontakt@liczbnik.pl
- Security reports
- /.well-known/security.txt
- Response time
- within 2 business days
Write to us
Report a bug
If you noticed an incorrect result in one of our calculators, please send us an email with the following information:
- the calculator name and page URL,
- the language version (pl / en / uk),
- the input values you used,
- the result you got and the result you expected,
- optionally, the source on which you based your expected result.
Email subject: Calculator bug.
Suggest a calculator
Have an idea for a calculator we are missing? Tell us briefly what it should calculate, who would use it, and where the formulas or rates can be found. In the form above, choose the subject Calculator suggestion. We will consider whether we can implement it.
Frequently asked questions
How quickly do you reply?
We aim to reply within 48 hours on business days. During high-traffic periods (e.g. tax season) response times may be longer.
How do I report a calculator bug?
Fill in the contact form with the subject "Calculator bug" and include the calculator name, the input values you used, and the result you got vs. the one you expected — this is the fastest way to get it fixed.
Can I suggest a new calculator?
Yes, write to us with the subject "Calculator suggestion" — briefly describe what it should calculate and where to find the formulas or rates. We are happy to consider it.
Do you offer advertising partnerships?
Yes — email kontakt@liczbnik.pl with the subject "Partnership", describing your offer and target audience. We reserve the right to decline partnerships that do not fit the site’s profile.
Do you reply in English/Ukrainian?
Yes, we handle enquiries in Polish, English and Ukrainian — the contact form is available in all three languages.
What should I do if a result looks wrong?
First check the values you entered and the "last updated" date shown next to the calculator. If it still looks like an error, report it via the form with the subject "Calculator bug".
Is my form data safe (GDPR)?
Yes. We only collect data needed to reply (name, email, subject, message) and process it according to our Privacy Policy — we never share it with third parties for marketing purposes.
Can I embed your calculator on my site?
We do not currently offer an official embed mechanism. If you are interested in this kind of partnership, contact us with the subject "Partnership" and we will discuss options.
Where can I find the privacy policy?
The full Privacy Policy is available at /polityka-prywatnosci — you will also find a link in the footer of every page and next to the consent checkbox in the form.
Do you give tax/financial advice?
No. Liczbnik provides indicative results based on publicly available rates and formulas — they do not constitute tax, legal or financial advice. For individual matters, please consult a professional advisor.
Calculator results are for informational purposes only and do not constitute tax, legal or financial advice.