Will it be another Polish Order, as skeptics predict, or will it be simplification and benefits resulting from the digitization of invoicing and document circulation in the company? The National e-Invoice System arouses extreme emotions. However, representatives of the Ministry of Finance reassured and explained that everything was ready for February 1, i.e. the start of the mandatory KSeF. And in fact, on February 1 at midnight, the system started. This was announced by the Ministry of Finance on X.
See also: I issued the first e-invoice with KSeF. “It took me 30 minutes and… surprised me”
We also logged in to KSeF 2.0.
We reported on all aspects of KSeF in Business Insider. We remind you of the most important articles worth reading.
If you haven't been much interested in KSeF so far, start with this article: Everything you need to know about KSeF. In one place. We explain what KSeF changes, explain basic concepts, terms and what obligations the issuers and recipients of invoices have. Thanks to this, subsequent articles and aspects of KSeF will not be “dark magic” for you. KSeF also involves changes in JPK_VAT and we inform you about them in detail, and they also enter into force on February 1 and apply to all VAT taxpayers, regardless of when they start invoicing in KSeF.
If you run a business and want to implement KSeF, it is also worth taking a look at the article: KSeF step by step. Here are seven things you need to do. We explain what you need to do to be ready for KSeF 2.0, from February 1.
And if you have any doubts whether you should be ready on February 1 or whether you have more time (the PIT/CIT and VAT settlement for February is in March), we dispel them in the article: When do you have to be ready with KSeF – February 1, or maybe March 15? We explain.
What if you don't make it to KSeF on February 1?
Many entrepreneurs will certainly not make it to KSeF on February 1. These were the experts' expectations. Many people are also wondering whether it will be possible to invoice outside the KSeF, especially since until the end of 2026 there will be no penalties for not using the KSeF. What if you issue an invoice outside KSeF? We explained it in the article: Will it be possible to invoice outside KSeF from February 1? We explain.
It is also important what the consequences of invoicing outside the KSeF will be, i.e. whether if you collect the invoice in the previous way, you will be able to deduct VAT and include the expense in tax deductible costs in PIT/CIT. Hundreds, if not thousands, of companies ask themselves these questions and send applications for tax interpretations to the Director of the National Tax Information. We analyzed them and present the conclusions in the article: Invoice outside KSeF. What about VAT deduction and costs? There are new interpretations.
How to log in to KSeF if you have a JDG or a company
The first step to invoicing in KSeF is: in the case of sole proprietorships (JDG), login. This article will be helpful: KSeF login. See how to do it [KROK PO KROKU].
However, a different procedure applies to companies. You need to start by submitting a ZAW-FA application (unless the company already has an electronic seal, then the application is not needed). We explain how to submit an application in the text: Do you want to have access to KSeF? You must have this if you don't run the business yourself.
And if you need invoicing software for KSeF, read the guide: How to choose software for KSeF? Experts indicate what to pay attention to.
These will be the effects of KSeF – for gas station customers and citizens
KSeF also means changes for business customers, e.g. at gas stations. You will no longer receive a paper invoice. What will it look like in Orlen? Read: Are you refueling for a company in Orlen? A new approach to invoices in KSeF.
We also explained what KSeF means for ordinary citizens who do not run a business. They will not always have a paper invoice, but you need to have it, e.g. when registering a car. See more: How will KSeF be felt by ordinary Poles? We translate
Do you have concerns about KSeF?
Many entrepreneurs are also afraid that data from the central system where invoices will be collected may fall into the wrong hands. Representatives of the Ministry of Finance responded to such concernsas we described in the article: KSeF is resistant to attacks, and invoice data will not leak? This is the ministry's answer.
Before the launch of KSeF, there was also disinformation, including: about the servers where invoices will be stored. What are the facts, we indicated in the text: Where are the KSeF servers? In Poland or abroad.
In Business Insider, we also talked to representatives of the Ministry of Finance, who explained various issues related to the invoice revolution: KSeF. Government experts explain the greatest doubts of the tax revolution [TYLKO U NAS]
The most frequently asked questions were also answered by tax advisors: KSeF. This is what companies ask most often. Tax advisors respond.
Authors: Łukasz Zalewski, journalist of the Law department of Business Insider Polska, Jolanta Ojczyk, head of the Law department of Business Insider Polska
