The short answer

Side-by-side comparison

Fees verified against each broker’s published schedule. All other data verified May 2026.

The FX fee gap is the real differentiator

Both brokers charge zero commission on ETF trades, so for EUR investors buying EUR-denominated UCITS ETFs, costs are identical at zero. The gap opens the moment you cross currencies — for example buying an S&P 500 ETF priced in USD, or a UK-listed ETF priced in GBP.

XTB charges 0.5% on every currency conversion. Trading 212 charges 0.15%. That is a 0.35 percentage point difference applied to the full notional value of every cross-currency trade.

Investing €1,000 per month in a USD-priced ETF costs €60 per year in FX fees at XTB versus €18 at Trading 212 — a €42 annual gap from the conversion alone. Over a decade of monthly investing, with that gap compounding inside a UCITS accumulating ETF, the drag is material.

XTB’s €100,000 monthly threshold — who it actually affects

XTB’s zero commission applies to ETF and stock trades up to a cumulative €100,000 in monthly turnover. Above that threshold, trades are charged at 0.2% with a minimum of €10 per trade. Trading 212 charges zero commission with no threshold, no conditions, and no monthly cap.

For most retail investors, €100,000 of monthly trading is not realistic — you would need ten separate €10,000 trades in a single month before the cap applies. In practice the structures are functionally equivalent for the majority of users. Where it matters: active traders doing large rebalances, or investors doing a single large lump-sum deployment. A €150,000 rebalancing trade at XTB triggers a 0.2% charge on the €50,000 above threshold — a €100 cost that Trading 212 avoids entirely.

XTB’s inactivity fee — the rule most investors miss

XTB charges €10 per month once two conditions are both met: you have not opened or closed any position in 365 days, AND you have not made a deposit in the previous 90 days. ISA accounts are excluded. Both conditions must be true simultaneously — a deposit alone resets the clock, as does any single trade.

This is a common trap for buy-and-hold investors who open an account, invest, and leave the portfolio to grow. Simply holding existing positions does not count as activity at XTB. If you invest a lump sum and plan not to touch it for 18 months, you face up to six months of €10 charges — €60 in silent fees — before you notice.

Trading 212 has no inactivity fee. For long-term passive investors who automate monthly contributions and otherwise do not interact with the platform, this is a clean structural cost advantage.

Trading 212 has the broader stock universe — XTB focuses on depth

For UCITS ETF investors, both brokers cover the major instruments well. Trading 212 lists around 1,589 UCITS ETFs versus XTB’s approximately 1,360 — a meaningful difference if you are looking for niche factor, thematic, or regional ETFs beyond the standard iShares, Vanguard, and Amundi ranges.

The stock count gap is larger: Trading 212 offers around 9,689 physical stocks versus XTB’s approximately 3,600. For stock pickers, this is a significant advantage. For a single-fund or two-fund UCITS ETF investor, neither number is a practical constraint.

Asset counts are indicative as of May 2026 and vary by country and account type. Verify current availability on each broker’s platform before investing.

Different tools built for different investors

This is where the two brokers diverge most clearly in product philosophy. XTB built a trading platform and added ETF investing. Trading 212 built an ETF investing app and added trading. That origin shapes every design decision on both platforms.

The Pies feature is genuinely useful for investors building a multi-ETF portfolio. You define target weights — for example 60% global equity ETF, 30% bond ETF, 10% emerging markets ETF — fund it with a recurring bank transfer, and Trading 212 allocates automatically to maintain those weights. It handles dividend reinvestment back into the correct slices without any manual action. For a passive investor this eliminates the main reason to log in.

XTB’s Investment Plans are a simpler equivalent — up to 9 ETFs per plan with a minimum of €15 per execution and recurring contribution support. The product exists and works, but it is lighter than Pies in scheduling granularity and does not include automatic dividend reinvestment.

Interest on uninvested cash — the XTB promotional trap

Both brokers pay interest on uninvested cash, but the structure differs significantly. XTB leads with a headline EUR rate of 2.30% — but that is promotional, applying only for the first 90 days from account opening. After that it drops to 0.90% standard. Trading 212 pays 2.20% EUR with no promotional cliff and no drop-off date.

The payment frequency difference also matters. Trading 212 credits interest daily directly to your cash balance. XTB calculates daily but pays out monthly, in the first five days of the following month. For investors who treat cash interest as part of their return calculation, daily compounding is a small but real structural advantage.

A note on Trading 212’s mechanism: uninvested cash is swept into Qualifying Money Market Funds to generate the yield. These balances fall under investment compensation limits rather than standard bank deposit protection. XTB’s cash interest is paid directly on the account balance without QMMF exposure.

XTB has a phone line — Trading 212 does not

This is one of the clearest structural differences between the two brokers and one that most comparison pages understate. XTB offers 24/5 human support by phone and live chat, with a dedicated account manager assigned to every new client. If something goes wrong with your account during market hours, you can call a human directly.

Trading 212 has no phone line. Support runs through in-app tickets, web contact forms, and email. The response infrastructure operates 24/7, but during high-volatility events — when you most need support — users consistently report backlogs and delayed responses. This has been a recurring complaint across Reddit and Trustpilot for several years.

For passive investors who rarely need to contact their broker, the support gap is mostly irrelevant. For active traders managing leveraged positions, or investors with large balances who want direct human access during a technical issue, XTB’s support infrastructure is materially better.

Both regulated — XTB adds public listing transparency

Both brokers are regulated by the FCA in the UK and CySEC in Cyprus. Both segregate client funds in Tier-1 bank accounts separate from their own balance sheets. For EU investors the investor protection limit is €20,000 under the Cyprus Investor Compensation Fund. For UK investors it is £85,000 under the FSCS.

XTB is also regulated by KNF in Poland, BaFin in Germany, and CNMV in Spain through local branches, and is listed on the Warsaw Stock Exchange (ticker: XTB). The public listing means quarterly financial reports, audited accounts, and capital reserve disclosures — giving investors visibility into the broker’s financial health that a private company cannot provide by definition.

Trading 212 operates through CySEC-regulated Trading 212 Markets Ltd for EU clients, FCA-regulated Trading 212 UK Ltd for UK clients, and BaFin-adjacent Trading 212 EU GmbH in Germany. It is a private company with no public financial disclosures. Client assets in the UK are custodied partly through Interactive Brokers infrastructure.

CFD trading carries high risk. The majority of retail investor accounts lose money when trading CFDs. These products are complex instruments and may not be suitable for all investors. Verify compensation scheme coverage with your specific entity before depositing.

What actual users say

Sentiment patterns across Reddit (r/eupersonalfinance, r/trading212), Trustpilot, and community forums are consistent enough to be useful signals — even accounting for selection bias in public reviews.

Pros and cons

The decision framework

For a passive investor building a long-term UCITS ETF portfolio in euros, both brokers work. The tiebreaker is the FX fee. If you ever buy non-EUR assets — US-listed ETFs, US stocks, UK-listed ETFs priced in GBP — Trading 212 is the cheaper platform by a clear margin on every transaction. The Pies automation and no inactivity fee reinforce that advantage for the buy-and-hold profile.

For an active trader who needs a serious platform — CFDs, forex, commodities, advanced charting, direct research feeds — XTB is the better-built product. The FX fee disadvantage is less relevant if most of your activity is on EUR-denominated instruments or in CFD markets where spread is the primary cost.

The one group that should specifically avoid XTB is the investor who plans to invest a lump sum and not actively manage it. The 90-day EUR cash interest cliff (2.30% down to 0.90%) and the 365-day inactivity trigger combine to quietly erode returns in ways that are easy to miss until you read the fine print. Trading 212 has no equivalent traps for the passive investor.