---
id: "P:cAlgo.API.OptimizationSettings.CommissionType"
kind: "property"
type: "T:cAlgo.API.OptimizationSettings"
url: "https://help.ctrader.com/ctrader-algo/references/Plugin/Optimization/OptimizationSettings/CommissionType/"
---

> Documentation index for agents: https://help.ctrader.com/ctrader-algo/llms.txt · machine index: https://help.ctrader.com/ctrader-algo/api.json

# OptimizationSettings.CommissionType

Member of [OptimizationSettings](https://help.ctrader.com/ctrader-algo/references/Plugin/Optimization/OptimizationSettings/index.md).

## CommissionType

Gets the commission type that defines how the Commission property value is interpreted. It is ignored when ApplyCommissionAutomatically is set to true. The default value is SymbolCommissionType.UsdPerMillionUsdVolume.

Environments: Desktop supported · CLI not supported · Cloud not supported.

- CLI: Available to plugins only, and plugins cannot run in the CLI.
- Cloud: Available to plugins only, and plugins cannot run in the cloud.

C#:

```csharp
public SymbolCommissionType CommissionType {get; set;}
```

Python:

```python
optimizationSettings.CommissionType: SymbolCommissionType
```

### Returns

`SymbolCommissionType` — 

Available since cAlgo.API 5.10.

### Examples

C#:

```csharp
var criteria = new[] { new OptimizationCriterion(OptimizationCriterionType.NetProfit, OptimizationCriterionDirection.Maximize) };
var settings = new OptimizationSettings(new DateTime(2025, 1, 1), new DateTime(2025, 3, 1), 10000, criteria)
{
    Commission = 3.5,
    CommissionType = SymbolCommissionType.UsdPerOneLot
};
Print("Commission type: {0}", settings.CommissionType);
```

Python:

```python
from System import DateTime
criteria = [OptimizationCriterion(OptimizationCriterionType.NetProfit, OptimizationCriterionDirection.Maximize)]
settings = OptimizationSettings(DateTime(2025, 1, 1), DateTime(2025, 3, 1), 10000, criteria)
settings.Commission = 3.5
settings.CommissionType = SymbolCommissionType.UsdPerOneLot
api.Print(f"Commission type: {settings.CommissionType}")
```