Key Takeaways
- The headline "zero commission" account often costs more than the ECN account with a USD 7 commission.
- Whether that is true for you depends on three numbers most beginners never calculate.
- Here are the numbers.
Trading costs are the most consistent drag on every retail CFD account, and they are almost always larger than new traders expect. The good news is that they are entirely knowable in advance. The bad news is that nobody pulls them apart for you. Here we will.
Three costs, in order of how often you pay them
Every CFD trade incurs up to three distinct costs. Depending on your account type and how long you hold the position, the mix shifts dramatically.
1. Spread — paid once, when you open
The spread is the gap between the bid (sell) and ask (buy) price quoted at any instant. On EUR/USD the spread on a Standard account at TopWealth is typically around 1.0 pip; on an ECN account around 0.1 pips.
On 1 standard lot (100,000 units), 1 pip is worth USD 10. So a 1-pip spread costs USD 10 at the moment of entry, and a 0.1-pip spread costs USD 1.
The spread is not a transaction fee in the accounting sense — you pay it by entering at a slightly worse price than the mid-market — but it shows up immediately as unrealised P&L the moment the position opens. A trade needs to recover the spread before it can become profitable.
2. Commission — paid on ECN-style accounts
Standard accounts at TopWealth (and most brokers) wrap the broker's mark-up into a wider spread and charge no separate commission. ECN accounts quote the interbank price directly and charge a fixed commission per round-turn lot, typically USD 6–7 on FX majors.
The point is not which is cheaper in absolute terms — it depends entirely on how actively you trade and which instruments. The test is straightforward:
- On a Standard account, the all-in cost of one round-turn on 1 lot of EUR/USD is roughly: 1.0 pip × USD 10 = USD 10.
- On an ECN account: 0.1 pip × USD 10 + USD 7 commission = USD 8.
For majors, ECN is meaningfully cheaper. For exotics, where spreads can be 5–10 pips on Standard but the commission is the same USD 7 on ECN, ECN can save 50–70%. For instruments traded by retail flow but quoted wide (e.g. minor crypto CFDs), Standard often wins.
3. Overnight financing (swap) — paid every day you hold
Because a CFD is a leveraged contract, your broker effectively lends you the difference between your margin and the full notional value of the position. The financing rate is charged (or credited) daily on positions held past the rollover time (typically 22:00 GMT on most platforms).
On FX, the swap is a function of the interest-rate differential between the two currencies in the pair, plus the broker's spread on that financing. Long the higher-yielding currency, you may earn a small credit; short the higher-yielding currency, you pay. On Wednesday night, swap is charged triple to cover the weekend.
On indices, single stocks, and commodities, swap is typically a benchmark rate (e.g. the relevant overnight rate) plus a margin on the long side, and the same minus a margin on the short side. Both directions usually pay something.
The 10-day holding example
Take that same 1-lot EUR/USD position on an ECN account, held for 10 calendar days (so 10 swap charges, with one triple Wednesday counted as three). Suppose the swap rate is -USD 3 per day on the long side at current rates.
- Spread on entry: USD 1
- Commission (round-turn): USD 7
- Financing: 12 days of swap × USD 3 = USD 36
- Total: USD 44
The financing is now four times the round-turn execution cost. This is the cost component that beginner cost calculators almost never show. For a scalp held 30 minutes, it is zero. For a swing trade held two weeks, it is the largest line item.
Which account is cheaper for you — the 60-second test
- Add up: average trades per month × average lots per trade.
- Multiply by 10 (USD spread cost on Standard) and by 8 (USD all-in cost on ECN, for FX majors).
- The difference is your monthly cost saving (or extra) from switching account type. Multiply by 12 for a year.
For a trader doing 40 round-turn lots per month on EUR/USD, ECN saves USD 80/month (USD 960/year) over Standard. For a trader doing 4 round-turn lots per month on exotics, ECN saves USD 200/month (USD 2,400/year). For someone trading 1 lot per month on EUR/USD, the difference is USD 24/year and probably not worth optimising.
Two costs that aren't on this list, but should be on your radar
Slippage
The difference between the price you saw and the price you got. Market orders during low-liquidity windows (Asian session opens, immediately after major data releases) can slip by several pips. This is not a fee the broker charges; it is a reflection of the market microstructure. Limit orders eliminate it; market orders trade certainty of fill for execution risk.
Currency conversion
If your account is denominated in USD but you trade an instrument denominated in another currency (e.g. EUR-denominated DAX), your P&L is converted back to USD at the broker's conversion rate, which includes a small markup. Usually trivial; occasionally material on small-cap stock CFDs traded in third currencies.
The point
Trading costs are not the enemy. Hidden trading costs are. If you can sketch on the back of an envelope, for any trade you plan to take, the spread cost on entry, the commission, and the daily financing for the holding period you have in mind, you have already eliminated the most common surprise that erodes retail accounts.
This article is general information about CFD trading costs and does not constitute personal advice. Actual spreads, commissions, and swap rates vary with market conditions and the specific instrument; please refer to our published pricing for current rates. CFDs are complex leveraged products and carry a high risk of losing money rapidly.
