- Tax Office e-Portal
- Central Register of Business Activity (CEIDG)
- National Court Register (KRS)
- ZUS Electronic Services Platform
- PKD Codes (Business Classification)
- Tax micro-account generator
- National Tax Information (KIS)
- Wykaz podatników VAT
- VAT Number Verification - VIES
- System informacyjno-usługowy dla przedsiębiorców
- ZUS contribution account number lookup
as of 2026-08-25
Copyright 2026
This site uses cookies for content personalization, traffic analysis, and social features. Some cookies are essential for the site to function, others require user consent.
Necessary (3)
Necessary cookies help make a website usable by enabling basic functions like page navigation and access to secure areas. The website cannot function properly without these cookies.
PHPSESSID:
Maintains user session so you stay logged in and can navigate between pages.
Storage duration: Session. Type: HTTP Cookie.
_vid:
Identifier for cookie consent management.
Storage duration: 1 rok. Type: HTTP Cookie.
cookieConsent:
Stores the user's cookie consent choices (preferences, statistics, marketing). Stored in localStorage.
Storage duration: Trwały. Type: Local Storage.
Preferences (0)
Preferencyjne pliki cookie umożliwiają zapamiętywanie wyborów dokonanych przez użytkownika i dostosowywanie strony do jego preferencji.
No cookies defined in this category.
Statistics (5)
Pliki cookie statystyczne zbierają informacje o tym, w jaki sposób użytkownicy korzystają ze strony, co pomaga nam zrozumieć, jak możemy ją ulepszyć.
FengoSST (GA4 proxy):
Server-side analytics proxy (SST). Statistical data is sent via server to Google Analytics 4 — no Google cookies are set on the user's device.
Storage duration: sesja. Type: Tracking Pixel.
_fvid:
Unique visitor identifier for FengoSST statistical purposes. Stored in localStorage.
Storage duration: Trwały. Type: Local Storage.
_fss:
Current FengoSST session identifier. Stored in sessionStorage — deleted when the tab is closed.
Storage duration: Sesja. Type: Session Storage.
fengo_analytics_visitor_id:
Unique visitor identifier in Fengo Analytics system. Stored in localStorage.
Storage duration: Trwały. Type: Local Storage.
fengo_analytics_session_id:
Current session identifier in Fengo Analytics system. Stored in sessionStorage — deleted when the tab is closed.
Storage duration: Sesja. Type: Session Storage.
Marketing (1)
Pliki cookie marketingowe służą do śledzenia użytkowników na różnych stronach internetowych. Celem jest wyświetlanie reklam, które są bardziej dopasowane i interesujące dla użytkownika.
Google Ads:
Measuring advertising effectiveness.
Storage duration: sesja. Type: Tracking Pixel.
You can withdraw your consent or change your cookie settings at any time in the Cookie Declaration. Learn more about our policies in Privacy Policy.
Please provide your consent ID and date when contacting us about your consent.