Best Financial Supervision Authority (KNF) Regulated Brokers 2025

We’ve personally tested and ranked the top brokers regulated by the Financial Supervision Authority (KNF) in Poland, ensuring high standards of trust and reliability.

Author Image Writer
Royston Wild
Checker Image Fact Checker
Tobias Robinson
Editor Image Editor
James Barra
Showing top 1 of 1 matching brokers.
  1. 1

    XTB

    flag
    Trust Platform Assets Fees Accounts Research Education Mobile Support 4.8
    Founded in 2002 in Poland, XTB now serves over 1 million clients. This forex and CFD broker offers a regulated trading environment with a wide range of assets and a commitment to trader satisfaction, featuring an intuitive in-house platform with excellent tools for aspiring traders.
    Demo Account
    Yes
    Minimum Deposit
    $0
    Minimum Trade
    0.01 Lots
    Leverage
    1:30 (EU) 1:500 (Global)
    Copy Trading
    No
    Regulator
    FCA, CySEC, KNF, DFSA, FSC, SCA, Bappebti
    Instruments
    CFDs on shares, Indices, ETFs, Raw Materials, Forex currencies, cryptocurrencies, Real shares, Real ETFs
    Platforms
    xStation
    Account Currencies
    USD, EUR, GBP, PLN
    Automated Trading
    Open API
    AI
    No
    Guaranteed Stop Loss
    Yes

Compare the Best KNF-Regulated Brokers

Broker
US Flag
USD Account
Demo Account
Minimum Deposit
Minimum Trade
Leverage
Copy Trading
Regulator
Instruments
Platforms
Account Currencies
Automated Trading
AI
Guaranteed Stop Loss
XTB
$0 0.01 Lots 1:30 (EU) 1:500 (Global) FCA, CySEC, KNF, DFSA, FSC, SCA, Bappebti CFDs on shares, Indices, ETFs, Raw Materials, Forex currencies, cryptocurrencies, Real shares, Real ETFs xStation USD, EUR, GBP, PLN Open API
Broker
US Flag
USD Account
Demo Account
Minimum Deposit
Minimum Trade
Leverage
Copy Trading
Regulator
Instruments
Platforms
Account Currencies
Automated Trading
AI
Guaranteed Stop Loss

Safety Comparison

Compare how safe the Best Financial Supervision Authority (KNF) Regulated Brokers 2025 are.

Broker
Trust Rating
Guaranteed Stop Loss
Negative Balance Protection
Segregated Accounts
XTB
4.6
Broker
Trust Rating
Guaranteed Stop Loss
Negative Balance Protection
Segregated Accounts

Mobile Trading Comparison

Compare the mobile trading features of the Best Financial Supervision Authority (KNF) Regulated Brokers 2025.

Broker
Mobile Apps
iOS Rating
Android Rating
Smart Watch App
XTB iOS & Android
4.7
4.1
Broker
Mobile Apps
iOS Rating
Android Rating
Smart Watch App

Comparison for Beginners

Compare how suitable the Best Financial Supervision Authority (KNF) Regulated Brokers 2025 are for beginners.

Broker
Demo Account
Minimum Deposit
Minimum Trade
Education Rating
Support Rating
Fractional Shares
Demo Competitions
XTB $0 0.01 Lots
3.8
4.3
Broker
Demo Account
Minimum Deposit
Minimum Trade
Education Rating
Support Rating
Fractional Shares
Demo Competitions

Comparison for Advanced Traders

Compare how suitable the Best Financial Supervision Authority (KNF) Regulated Brokers 2025 are for advanced or professional traders.

Broker
Automated Trading
VPS
API
AI
Pro Account
Leverage
Low Latency
Extended Hours
XTB Open API 1:30 (EU) 1:500 (Global)
Broker
Automated Trading
VPS
API
AI
Pro Account
Leverage
Low Latency
Extended Hours

Accounts Comparison

Compare the trading accounts offered by Best Financial Supervision Authority (KNF) Regulated Brokers 2025.

Broker
Demo Account
Interest on Cash
Islamic Account
Joint Account
Managed Account
PAMM
MAM
LAMM
Pro Account
XTB USD: 2%, GBP: 4.5%, EUR: 1.25%
Broker
Demo Account
Interest on Cash
Islamic Account
Joint Account
Managed Account
PAMM
MAM
LAMM
Pro Account

Detailed Rating Comparison

Compare how we rated the Best Financial Supervision Authority (KNF) Regulated Brokers 2025 in key areas.

Broker
Trust
Platforms
Assets
Mobile
Fees
Accounts
Research
Education
Support
XTB
4.6
4.0
4.0
4.4
4.3
4.0
4.1
3.8
4.3
Broker
Trust
Platforms
Assets
Mobile
Fees
Accounts
Research
Education
Support

Fee and Cost Comparison

Compare the cost of trading with the Best Financial Supervision Authority (KNF) Regulated Brokers 2025.

Broker
Cost Rating
Fixed Spreads
Inactivity Fee
CFD Stocks Spread
EUR/USD Spread
Crypto Spread
XTB
4.3
$0 0.2% 1.0 0.22%
Broker
Cost Rating
Fixed Spreads
Inactivity Fee
CFD Stocks Spread
EUR/USD Spread
Crypto Spread

Broker Popularity

See how popular the Best Financial Supervision Authority (KNF) Regulated Brokers 2025 are in terms of number of clients.

Broker Popularity
XTB
1,000,000

Why Trade With XTB?

XTB is a leading choice for new traders due to its exceptional xStation platform, no commission costs, no mandatory deposit, and high-quality educational resources, most of which are smoothly incorporated into the platform.
Christian Harris
Review Author

Pros

  • XTB provides an extensive set of educational resources such as training videos and articles on its platform, making it suitable for traders of all skill levels.
  • The xStation platform stands out with its easy-to-use interface and intuitive features. These include personalized news feeds, sentiment heat maps, and a trading calculator, making it simpler for new traders.
  • XTB offers over 7,000 instruments, including CFDs on shares, indices, ETFs, raw materials, forex, crypto, real shares, real ETFs, share dealing, and investment plans, catering to both short-term traders and long-term investors.

Cons

  • XTB does not provide a raw spread account. This is often given by competitors such as Pepperstone. This can be of disadvantage to traders searching for the narrowest spreads.
  • The inability to modify the default leverage on XTB products is disappointing. Manual adjustment can greatly reduce trading risks, especially in forex and CFD trading.
  • Trading costs are fair with typical spreads of around 1 pip on the EUR/USD. However, they're not as low as those offered by the least expensive brokers, like IC Markets. Also, an inactivity fee applies after one year.
Go to XTB
CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 69-83% of retail investor accounts lose money when trading CFDs with this provider. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money
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How BrokerListings.com Selected the Top KNF Brokers

To highlight the most reliable brokers overseen by the KNF (Komisja Nadzoru Finansowego) – Poland’s financial supervisory authority – we applied a three-stage review process:

  1. Regulatory Screening: Verified each broker’s authorization with the KNF register to confirm they meet Polish standards as well as EU-wide MiFID II obligations.
  2. Comprehensive Broker Analysis: Scored firms across 200+ performance factors, including order execution, fees, trading platforms, leverage policies, and client asset safeguards.
  3. Hands-on Testing: Conducted trading trials to measure the trading experience, from spreads and tools to funding speed and customer support quality.

BrokerListings.com Broker Testing Methodology

What Is KNF?

Poland’s financial markets are safeguarded by the Komisja Nadzoru Finansowego (KNF). Established in 2006, the body is responsible for regulating the financial services industry, supervising the activities of market participants like online brokers, and initiating enforcement action when it identifies breaches of standards.

Known as the Polish Financial Supervision Authority in English, it operates in accordance with the Financial Market Supervision Act of 2006.

Furthermore, its principles and practices align with those of the European Securities and Markets Association (ESMA). This reflects Poland’s place in the European Economic Area (EEA), and the requirement for harmonized regulations across the region.

Both the KNF and ESMA are classified as Category A regulators under BrokerListings’ broker regulator classification system. As a result, traders and investors can expect strong protection against poor industry practices and bad brokers.

What Powers Does KNF Have?

The organization says that its supervisory remit “aims at ensuring its proper functioning, stability, security and transparency, trust [in] the financial market, and protection of the participants’ interests by providing reliable information on the market.”

Like most regulators, the KNF is tasked with issuing licenses to financial services companies including brokerages, banks, insurance companies and payment services providers.

In its supervisory capacity, it has the power to conduct on-site inspections, request documents and data, and to interview relevant individuals.

When it deems that rules have been broken, it can undertake a wide range of actions including:

  • Demanding that entities implement corrective measures to address non-compliance issues.
  • Imposing financial penalties on brokers.
  • Revoking and suspending companies’ licenses.
  • Removing members of a company’s management.
  • Issuing public warnings about untrustworthy brokerages.

Pro tip: The KNF maintains a list of warnings on its website for companies suspected of a criminal offence, and entities subject to criminal proceedings in which the KNF or another ESMA-affiliated regulator is involved.

Warning notices on the KNF website

The KNF’s online warnings list. Source: KNF

In 2018, the KNF fined broker X-Trade Brokers (now known as XTB) 9.9 million Polish złoty (PLN) for rule breaches. It deemed that the company benefitted from differential slippage, in which its customers suffered losses from price slippage without receiving any benefits when price movements should have worked in their favor.

The actions took place between January 2014 and May 2015. An appeal by XTB was rejected by the Polish Supreme Administrative Court in 2023.

What Rules Must A KNF Broker Follow?

The KNF’s close relationship with ESMA means brokerages need to observe rules set out in the Markets in Financial Instruments Directive II (MiFID II).

To receive a license from Poland’s regulator, brokers offering trading services must adhere to a wide range of standards. These include:

  • Targeting the best-possible trading result for clients. This is based on criteria including price, transaction charges and other costs, trade size and execution speed.
  • Ensuring that all advertising material is clear, fair and not misleading.
  • Disclosing the risks associated with online trading and specific financial instruments.
  • Discussing and promoting products and services that are appropriate to the client. This will take into account an individual’s investing experience, tolerance of risk and other personal circumstances.
  • Creating policies and procedures to detect, prevent, and manage conflicts of interest between the firm, its employees and its customers.
  • Segregating the customer’s funds from those of the company to protect their assets in case of insolvency.

Establishing robust practices for record keeping. This is essential for KNF’s supervisory functions, and for the potential pursuit of enforcement action.

How Can I Check If A Brokerage Is KNF Regulated?

Verifying that a broker is KNF-approved is essential before handing over any money or personal details. Fortunately, this can be done simply and quickly using the regulator’s online Entities Search facility.

Let’s say I wish to check the regulatory status of XTB. I type the broker’s name into the search bar and hit the ‘Search’ button (as you can see I did below).

Punching the broker's name into the KNF's entities catalogue

Typing XTB into the KNF’s search facility. Source: KNF

I am greeted with several options, but choose XTB’s entry under the ‘Brokerage houses’ tab, which is the most relevant category to me. Here I can see details including the company’s address, telephone numbers, and information on the activities it’s authorized to undertake.

Locating XTB's profile on the KNF website

XTB’s profile on the KNF Entities Search. Source: KNF

Pro tip: My search also reveals that XTB has operations in other EEA territories including Germany, France, Spain, Portugal, Czechia, Slovakia and Romania.

Under ‘passporting’ rules, financial services providers can operate in countries across the bloc, even if they only hold a license from one national regulator.

Bottom Line

Traders in Poland – as with those in any other regions – need to be constantly vigilant for fraudulent entities and individuals when they’re choosing a broker. Thanks to strong regulation and supervision from the KNF, investors who use officially licensed brokers can be confident that their interests are well safeguarded.

Article Sources

Komisja Nadzoru Finansowego (KNF)

What are the main sources of regulatory laws in your jurisdiction? – Baker McKenzie

European Securities and Markets Association (ESMA)

Polish Financial Supervision Authority (KNF) – KNF

Report on the Activities of the UKNF and the KNF in 2023 – KNF

Republic of Poland – Detailed Assessment of Observance of Basel Core Principles for Effective Banking Supervision – International Monetary Fund (IMF)

List of the KNF’s public warnings – KNF

Polish Court Upholds XTB’s $2.2m Fine over Differential Slippage from 2018 – Finance Magnates

Markets in Financial Instruments Directive II (MiFID II) – ESMA

Markets in Financial Instruments Directive (MiFID II): Frequently Asked Questions – European Commission

Entities Search – KNF