Before you make a down payment, sign a contract or credit an invoice, it is worth taking a few minutes to check who you are really dealing with. Nowadays, a professional website and efficient communication are no guarantee of security, and problems often only start when money has already changed hands. Fortunately, checking the legitimacy and trustworthiness of a company in Poland is simple, free and available online - you just need to know where to look, how to verify the data by TIN and which signals should turn on the red light even before you start working together.
How do you check the legitimacy of a company in Poland and not get nicked even before your first invoice?
If you have to make an advance payment, sign a contract or accept an invoice, checking the company's legality is an absolute must - not a formality "for later", but a real way to reduce risk. Legality means one thing above all - the company must actually exist in an official register and operate in accordance with regulations, not just look credible on the website or social media. This is the first filter that separates honest entities from those that count on the other party's ignorance.
At this stage, you are not yet analysing reputation or customer reviews. You focus on the facts: whether the business is registered, active and has not been deleted, whether the details on the invoice match what appears in the registers, and whether the company is not in a state of suspension, liquidation or bankruptcy. This information is public and available online, without logging on and without charge, so it simply does not pay to not check it.
Why is it so important to check a company's credibility?
Pre-verification protects you not only from losing money, but also from tax problems, joint and several liability or disputed costs in your accounts. If a company does not formally exist or uses someone else's data, the whole transaction becomes a problem - even if the service has been provided. Therefore, registers, statuses and hard data should be in place before trust can be established.
How to check whether a company exists in Poland and operates legally? CEIDG or KRS?
In order to effectively check whether a company exists in Poland, you must first go to the relevant register. It is at this stage that many people make the mistake of looking for a limited liability company in CEIDG or a sole proprietorship in KRS. The division is simple but crucial - the CEIDG covers sole traders and the KRS covers companies and other commercial law entities.
Central Register and Information on Business Activity (CEIDG)
If a contractor is operating under his own name, even if he uses a trade name, you will almost certainly find him in CEIDG.There you will check the status of the business, the date of commencement, any suspensions, the business address, PKD codes and the owner's details. This is a sufficient set of information to confirm whether the business is actually operating and whether the data is consistent with what you see on the invoice or website.
To check a company in the CEIDG, simply go to the CEIDG website and enter the company name or NIP number.
National Court Register (KRS)
The situation is different for companies. The KRS provides access to a much wider range of data - from the composition of the management board and the manner of representation, through the share capital, to information on bankruptcy, restructuring or liquidation proceedings. It is here that you can check who actually has the right to sign contracts and whether the person contacting you is acting in accordance with the power of attorney.
This division is important for another reason. Different legal forms carry different risks - different for a sole proprietorship, different for a company. Therefore, just finding out whether a company is listed in the CEIDG or KRS organises further analysis and allows the selection of appropriate steps for further verification of the company's credibility.
Verification of a company by its NIP number step by step - where to enter the number and what exactly should be checked?
The TIN number is the simplest and at the same time the most universal starting point for counterparty analysis. Verifying a company by TIN allows you to get to the key information in a few minutes, regardless of whether you are dealing with a sole trader, a company or an organisation. Importantly, the same number appears in several registers - and comparing them gives you a real picture.
The first step is to check the TIN in the relevant register - CEIDG or KRS. Here you confirm the basics: whether the number exists, who it belongs to and whether the data are consistent. Pay attention to the company name, registered office address, legal form and business status. Already at this stage, you can pick up worrying signals such as discrepancies in data or activity deleted despite active invoicing.
In order to check the company in the CEIDG, it is enough to go to the CEIDG website and enter the company's name or NIP number - https://aplikacja.ceidg.gov.pl/ceidg/ceidg.public.ui/search.aspx.
The next step is to verify the company by its NIP number in the list of VAT taxpayers, i.e. in the so-called white list. Here, you check whether the company is an active VAT taxpayer, exempt or deleted, as well as whether the bank account number from the invoice is on the list reported to the tax office. This is particularly important for B2B transactions, where an erroneous transfer can have tax consequences. To check whether a company is registered for VAT, simply enter its VAT registration number on the Ministry of Finance website.
How to check the trustworthiness of a company for free - a checklist of warning signs that are not visible on the website
Legality is only the beginning. Once you are sure that a company exists, it is time to check the credibility of the company, i.e. to assess whether the cooperation will actually be safe. Importantly, you can check many of the key signals at no cost using public data and common sense.
Start with the history of the entity. The date the company was founded, the frequency of changes, suspensions or management rotations can tell you more than an elaborate sales pitch. A company that has been in existence for a few weeks, offering large transactions and pushing for quick payments should always arouse vigilance. This does not automatically mean problems, but it definitely calls for caution.
The next step is consistency of information. Compare the data from the records with what you see on the website, in the footer of the email and on the invoice. A missing address, incomplete company details, generic contact forms without names - these are signals that are not worth ignoring. Credible entities have no reason to hide basic information.
You can also check reviews and mentions at this stage , treating them as a supplement rather than the main source of knowledge. Single negative comments do not doom a company, but repeated problems with payments, lack of contact or unclear billing should already set off a warning light. If you want to go one step further, reports from business information offices are also available, although this is already part of an extended analysis.
Verifying foreign companies without guesswork - how to check the credibility of an EU company in VIES and when the red light goes on
When working with non-Polish entities, there is an additional element of uncertainty, but verifying foreign companies does not have to mean guessing or relying solely on the counterparty's declarations. For EU companies, the VIES system, which allows you to check the status of your EU VAT number, is an essential tool.
With VIES, you can easily confirm whether the VAT number assigned to your company is active and registered in a particular Member State. This is particularly important for intra-Community transactions, where the correct tax status affects the way VAT is settled. A positive result does not yet mean full reliability, but a lack of confirmation always requires further clarification. You can get the information you need at https://ec.europa.eu/taxation_customs/vies/#/vat-validation.
For non-EU companies, the process can be more complex, but the principle remains the same: do not rely solely on declarations and documents sent by email. Check the register, company details, presence in local databases and consistency of information. Verification may take a while longer, but with international cooperation it is standard, not overzealous. Checking a company before collaborating is nowadays not an exaggeration or a lack of trust, but a conscious action that realistically protects your money and time. By spending a few minutes verifying the details in the registers, checking the TIN and tax status, you can avoid problems that are difficult to undo later.
Previous
