Spread and costs

By default TradifyFX charges you the spread on every trade — you buy at the ask and sell at the bid, just like a real account.

This is on because a backtest without costs is a fantasy. Strategies that scalp a few pips can look wonderful without spread and lose money with it, and you would rather find that out here.

What it looks like

Open and immediately close a position and you will be down slightly. That is the spread, charged half on the way in and half on the way out.

The session summary shows the total you paid, so you can see what your trading frequency actually costs.

Per-market spreads

Each market uses a typical spread for that instrument — tight on EUR/USD, wider on exotic pairs and metals — rather than one number applied to everything.

Turning it off

Settings → Costs has a toggle. Leave it on.

The only real reason to turn it off is to measure how much your costs are costing you: run the same test both ways and compare.

Not modelled: overnight swap or financing charges, and slippage beyond the spread. On a strategy that holds positions for weeks, real financing costs would matter more than they do here.