Best Financial Supervision Authority (KNF) Brokers 2026

The Financial Supervision Authority, or Komisja Nadzoru Finansowego (KNF), is Poland’s regulatory body overseeing the financial markets, including online brokers.

For day traders, the KNF plays a crucial role in safeguarding against fraud, enforcing strict regulations on trading platforms, and ensuring compliance with EU standards.

Traders with KNF-authorized providers are also covered by the KDPW Investor Compensation Scheme, which provides up to 90% of lost funds, capped at €20,100, if your broker becomes insolvent.

Poland’s KNF is classified as ‘green tier’ under DayTrading.com’s Regulation & Trust Rating, reflecting its strong investor safeguards and active oversight of brokerages.

Explore our selection of the top KNF-regulated brokers in Poland. We’ve meticulously verified that every platform we recommend is listed on the KNF’s ‘Entities Search‘, ensuring its legitimacy.

Best KNF Brokers

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Following our latest evaluations, these 1 Polish-regulated trading platforms emerged as a cut above the rest:

Tested with a live trading account Accepts traders from Malawi Your capital is at risk. Trade only with funds you can afford to lose.

1. 1

   XTB

   4.8/ 5

   Visit XTB Read review
   • Demo account
   • Platforms: xStation
   • Min. deposit: $0
   69-80% of accounts lose money when trading CFDs with this provider.

Learn how we test brokers and why you can trust our ratings.

Here is a summary of why we recommend these brokers in November 2026:

1. XTB 4.8/5 Founded in 2002 in Poland, XTB now serves more than 1 million clients. The forex and CFD broker combines a heavily regulated trading environment with an extensive selection of assets and a commitment to trader satisfaction, featuring an intuitive in-house platform with superb tools to support aspiring day traders.

KNF Brokers Comparison

KNF Brokers Comparison

Broker	Minimum Deposit	Markets	Platforms	Leverage
XTB	$0	CFDs on shares, Indices, ETFs, Raw Materials, Forex currencies, cryptocurrencies, Real shares, Real ETFs	xStation	1:500

Community Sentiment

See how users rate these brokers based on the average customer ratings submitted on DayTrading.com, plus ratings from Trustpilot, the Apple App Store and Google Play.

Community Sentiment

Broker	Our Users' Rating	Trustpilot Score	Trustpilot Reviews	iOS App Rating	Android App Rating
XTB	4.7 / 5	3.8 / 5	3083	4.7 / 5	4.1 / 5

XTB

4.8/ 5

Visit XTB XTB review

XTB stands out as a top choice for new day traders with the terrific xStation platform, low trading costs, no minimum deposit, and excellent educational tools, many of which are seamlessly integrated into the platform.

XTB quick facts

Demo Account

✔Yes

Instruments

CFDs on shares, Indices, ETFs, Raw Materials, Forex currencies, cryptocurrencies, Real shares, Real ETFs

Regulator

FCA, CySEC, KNF, DFSA, FSC, SCA, CMF, Bappebti

Platforms

xStation

Minimum Deposit

$0

Minimum Trade

0.01 Lots

Account Currencies

USD, EUR, GBP

Pros

• First-class 24/5 customer support is available, including a friendly live chat with response times of under two minutes during testing.
• With an excellent range of educational materials, including training videos and articles integrated into the platform, XTB supports traders at all levels.
• XTB has improved its assets and markets offering further in 2026 with options trading in Spain and Germany, spot cryptos in some regions, and Investment Plans 2.0 with more pre-built plans covering sectors like Defence, a more intuitive interface, and greater flexibility to combine single stocks and ETFs into individual plans.

Cons

• XTB does not offer a raw spread account, which is becoming increasingly common among competitors like Pepperstone, and may disappoint day traders looking for the tightest spreads.
• XTB discontinued support for MT4, limiting traders to its proprietary platform, xStation, potentially deterring advanced day traders familiar with the MetaTrader suite.
• Trading fees are competitive with average spreads of around 1 pip on the EUR/USD but still trail the cheapest brokers like IC Markets, plus there's an inactivity fee after 12 months.

Visit XTB XTB review

Firms are either ‘brokerage houses’ or registered for ‘outward passporting’ under the EU’s crossborder initiative. 

Methodology

To discover the top brokers operating under KNF regulation, we:

How Can I Check If A Broker Is Regulated By KNF?

Ensuring the KNF regulates a broker is a straightforward process that we use to validate the credentials of every recommended platform.

You can do it in three easy steps:

1. Access the KNF ‘Entities Search’ on its website.
2. Input the broker’s name into the search field.
3. If needed, refine the search results by category to view information such as the full business trading name(s), registered office addresses, and brokerage activity information.

What Rules Must KNF-Regulated Brokers Follow?

Day trading brokers regulated by Poland’s KNF must primarily adhere to rules regarding client protection, proper segregation of funds, capital adequacy requirements, reporting obligations, best execution practices, conflict of interest management, and compliance with MiFID II regulations, all of which aim to ensure market integrity and safeguard investor interests.

To be granted a KNF license, a brokerage must satisfy the following fundamental requirements and safeguards:

• Client Protection: Brokers must prioritize client interests, provide clear information on services and risks, and maintain proper client account segregation.
• Capital Adequacy: Maintain sufficient capital reserves to cover potential market fluctuations and risks associated with brokerage activities.
• Best Execution: Obligation to seek the best possible price for clients when executing orders, considering price, cost, and speed, which are essential for day traders operating in fast-moving markets.
• Conflict of Interest Management: Clear disclosure and procedures to manage potential conflicts of interest arising from their business activities.
• Reporting Requirements: Regularly submit detailed reports to KNF regarding trading activity, client accounts, and financial health.
• MiFID II Compliance: Adhere to the Markets in Financial Instruments Directive II guidelines on market conduct and transparency, including order-book transparency and client suitability assessments.
• Anti-Money Laundering (AML) Compliance: Implement robust AML procedures to combat money laundering and terrorist financing activities.
• Customer Suitability: Assess client risk profile and ensure investments are appropriate for their needs and financial situation, an important check given the high-risk nature of short-term trading strategies.

Trading platforms and financial institutions who fail to comply with these regulations and other stipulations may be subject to enforcement action by the KNF, which could result in fines, sanctions, or the revocation of their license.

A notable example is the KNF’s PLN 9.9 million fine (EUR 2.3 million) for ‘differential slippage’ against XTB, a Polish broker. This practice allowed XTB to pass losses from unfavorable price movements entirely to its clients while profiting from favorable price movements, effectively putting clients at a disadvantage.

Additionally, in June 2024, the KNF fined the publicly listed lender BNP Paribas Polska PLN 500,000 (EUR 115,400) for insufficient ongoing oversight of factual and legal activities.

Bottom Line

Polish traders are strongly advised to choose KNF-regulated brokers. This ensures the brokerage’s trustworthiness and establishes a fair and transparent trading environment, offering peace of mind and guidance as you navigate your day trading journey.

You can verify this in just a few minutes on the KNF website. Or, explore DayTrading.com’s list of the best day trading platforms regulated in Poland.

It’s essential to acknowledge that online trading involves risks, regardless of the broker’s regulatory status, and you could lose all the złoty you invest.