A cent account is a live trading account denominated in cents rather than pounds or dollars. Deposit £100 and the balance shows as 10,000 cents. The trades are real and the money is real, but every position is a hundredth of the size it would be on a standard account — which makes a cent account the cheapest honest way to test an EA with live execution.
What it is
On a standard account, a £100 balance shows as 100. On a cent account, the same £100 shows as 10,000 — the broker simply displays and sizes everything in cents. A "1 lot" trade on a cent account is really 0.01 of a standard lot. So your risk per trade is tiny, but everything else — the broker, the spread, the slippage, the swap, the fills — is genuinely live.
That last point is why cent accounts exist. A demo account is free but fills you on a friendly, frictionless feed. A cent account puts the strategy through the same execution a full account would face, for the price of a takeaway.
Why it matters for EA testing
A backtest and a demo tell you how an EA behaves in clean conditions. They do not tell you how it survives real spread widening, real slippage at news, real requotes, or the broker's actual overnight swap. Those costs are exactly what kill a promising strategy when it goes live.
A cent account exposes the EA to all of it with money small enough that a blow-up costs pounds, not thousands. If the strategy cannot make money net of real costs on a cent account, it will not make money scaled up. The costs do not improve with size.
A worked example
You want to test a scalping EA before committing £10,000. You fund a cent account with £100 (shown as 10,000 cents) and run the EA at the smallest size for a month.
- The EA trades exactly as it would on a big account, facing the same 0.4-pip spread and occasional slippage.
- After a month it is up 12% — but the equity curve shows two ugly drawdowns you never saw in the backtest, caused by news-time slippage.
- Cost of learning that: your £100 was never seriously at risk, and you now know the EA needs a news filter before it touches the £10,000.
Run the same test on demo and those drawdowns might never have appeared, because the demo feed does not slip. The £100 bought you the truth.
A cent account is a stress test, not an income. The percentage returns are real, but on £100 a "great month" is a few pounds. Judge the shape of the equity curve and the behaviour of the costs — not the profit.
The catches
Cent accounts are usually offered by offshore or lightly regulated arms of a broker, and often with different execution or wider spreads than the firm's main accounts — so a strategy that works on the cent account still needs re-checking on the account you will actually scale on. They may also allow high leverage that flatters the EA on small size. Treat the cent account as a realistic rehearsal, not a guarantee, and confirm the results on the real account before you add zeros.
The Karnek note
Karnek monitors a cent account exactly as it monitors a full one, read-only, so the test EA's real drawdown, costs and fills sit on the same page as everything else. It can never place or close a trade — it only records how the strategy actually behaved.
Written and reviewed by the Karnek Research team. Last updated August 2026.
Educational content only - not financial advice. Past performance does not predict future results. Trading carries significant risk.