Interactive Brokers vs XTB vs DEGIRO — Best Broker for European Investors (2026)

Quick Answer

For passive ETF investors in Europe: XTB (commission-free ETFs up to €100k/month) or DEGIRO (low-cost core ETFs). For active traders and large portfolios: Interactive Brokers (best execution, widest market access, lowest margin rates). For beginners: XTB (clean UI, free ETFs, no minimums). All three are regulated, reputable brokers — the best choice depends on your investing style, portfolio size, and country of residence.

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Why These Three Brokers?

If you're a European investor in 2026, these three names come up in every conversation:

• Interactive Brokers (IBKR) — the "institutional-grade" broker loved by experienced investors
• XTB — the Polish-born broker with free ETF trading that's taken Europe by storm
• DEGIRO — the Dutch low-cost pioneer now owned by flatexDEGIRO

Together, they cover 90% of what European retail investors need. Let's break down exactly how they differ.

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Head-to-Head Comparison

Overview

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Fees Comparison — The Most Important Part

Stock Trading Fees

ETF Trading Fees

This is where it gets interesting for passive investors:

Winner for ETF investors: XTB (broadest free ETF selection, no "core" restriction)

Currency Conversion Fees

If you're buying US stocks or USD-denominated ETFs, you need to convert EUR/PLN to USD:

Winner: Interactive Brokers — massively cheaper for currency conversion, especially for large orders. On a €10,000 order: IBKR costs ~€2, XTB costs ~€50, DEGIRO costs ~€25.

Custody/Inactivity Fees

*XTB charges €10/month after 12 months of no trading and no open positions. Easy to avoid — just hold positions.

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Available Markets and Instruments

Winner: Interactive Brokers — unmatched breadth. If you want to trade Japanese options or Brazilian bonds, IBKR is the only option.

For most passive investors: XTB's 350+ commission-free ETFs cover everything you need (VWCE, IWDA, EUNL, IS3N, etc.).

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Fractional Shares

Fractional shares let you invest exact amounts (e.g., €100/month into an ETF worth €80/share).

Winner: XTB — fractional ETFs are a game-changer for DCA (Dollar Cost Averaging) with small amounts. You can invest exactly €200/month into VWCE without worrying about share price.

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Account Types and Tax Wrappers

IKE and IKZE (Poland-specific)

For Polish residents, tax-advantaged IKE/IKZE accounts are crucial:

Huge win for XTB in Poland. IKE with commission-free ETFs means you can build a tax-free retirement portfolio at zero cost. No other international broker offers this.

Tax Reporting

Winner: Interactive Brokers for complex tax situations (multiple countries, dividend reclaims). XTB for Polish residents (native PIT-8C).

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Platform and User Experience

Desktop/Web Platform

Mobile App

Winner (UX): XTB — the most modern, intuitive experience. IBKR wins on power; DEGIRO is the simplest.

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Safety and Security

Investor Protection

Winner: Interactive Brokers — largest, most established, public on NASDAQ with the strongest balance sheet.

All three are well-regulated and safe for retail investors. Your securities are held in segregated accounts — if the broker goes bankrupt, your shares are protected.

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Best Broker For…

Passive ETF Investor (DCA monthly)

🏆 Winner: XTB

Why:

• €0 commission on ETFs
• Fractional shares (invest exact amounts monthly)
• IKE/IKZE for Polish residents (tax-free!)
• Clean mobile app for quick monthly purchases
• No minimum deposit

Setup: Open XTB IKE (if Polish) or regular account → buy VWCE or equivalent every month → done.

Active Trader

🏆 Winner: Interactive Brokers

Why:

• Lowest execution costs at scale
• 150+ markets
• Advanced order types (trailing stop, iceberg, etc.)
• Best margin rates in Europe
• Professional-grade platform (TWS)
• API for algorithmic trading

Beginner

🏆 Winner: XTB

Why:

• No minimum deposit
• Free ETFs — no fees to worry about
• Intuitive mobile app
• Educational content
• Fractional shares (start with €10)
• Demo account available

Large Portfolio (€500k+)

🏆 Winner: Interactive Brokers

Why:

• Cheapest FX conversion ($2 flat)
• Lowest margin rates
• Access to bonds, options, futures for hedging
• Multi-currency account (hold EUR, USD, GBP, PLN simultaneously)
• Best tax reporting
• Portfolio margin

Polish Investor

🏆 Winner: XTB (for IKE/IKZE) + Interactive Brokers (for regular account)

Optimal strategy for Polish residents:

1. XTB IKE — max out annual IKE limit (~24,000 PLN) with commission-free ETFs
2. XTB IKZE — max out annual IKZE limit (~10,000 PLN)
3. Interactive Brokers — for everything above IKE/IKZE limits (best FX rates, widest access)

This gives you tax-free growth on the first ~34,000 PLN/year, and the cheapest global access for the rest.

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Hidden Costs You Should Know About

Spread

All brokers have bid-ask spreads, but they're not equal:

IBKR's smart order routing consistently gets better fills, saving 0.01–0.05% per trade. Irrelevant for buy-and-hold; meaningful for active traders.

Product Governance Costs

DEGIRO charges a €2.50/year "connectivity fee" per exchange you trade on (beyond your home exchange). If you buy ETFs on XETRA and stocks on NYSE, that's €5/year. Small, but worth knowing.

Dividend Handling

US dividends are subject to 30% withholding tax (reduced to 15% with W-8BEN treaty). All three brokers handle W-8BEN, but:

• IBKR: Applies correct treaty rate automatically for most countries
• XTB: Generally applies treaty rate; check for your country
• DEGIRO: Has had issues with incorrect withholding in the past (improving)

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Migration: Can You Transfer Between Brokers?

Tip: If your portfolio is in IKE (XTB), you can transfer to another IKE provider without selling. But IKE options are limited — XTB is the best IKE broker in Poland.

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How Freenance Connects With Your Broker

Freenance integrates with multiple brokers and accounts to give you a complete picture of your finances:

• Track your ETF portfolio across IBKR, XTB, and DEGIRO
• Import transactions from Revolut for everyday spending
• Monitor your Financial Freedom Runway — how long you could live off investments
• Combine IKE/IKZE tracking with regular brokerage accounts
• Automatic asset allocation analysis

The point isn't just which broker you use — it's how your investments fit into your total financial picture. Freenance connects the dots.

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Summary Table

The bottom line: There's no single "best" broker — it depends on who you are. But if we had to pick one for the average European building long-term wealth: XTB for simplicity and free ETFs, with Interactive Brokers as your "level up" when your portfolio and needs grow.