> For the complete documentation index, see [llms.txt](https://1stepapp.gitbook.io/1step-docs-en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://1stepapp.gitbook.io/1step-docs-en/task-creation/buy-settings.md).

# Buy Settings

1step supports the following buy-related parameters:

* **Buy Tax**:
* &#x20;Sets the buy tax for the target. If the tax exceeds the set limit, the purchase will not proceed.
* **Sell Tax**:&#x20;
* Sets the sell tax for the target. If the tax exceeds the set limit, the purchase will not proceed.
* **Liquidity Limit**:&#x20;
* Sets the liquidity limit for the target. If the liquidity falls below the limit, the purchase will not proceed.
* **Slippage Limit**:&#x20;
* Sets the maximum allowable price slippage for purchases. Higher slippage can increase the success rate of transactions. If actual price movement exceeds the slippage limit, the purchase will fail.
* **Smart Slippage**:&#x20;
* Activating smart slippage can significantly reduce the risk of sandwich attacks but may increase the chance of purchase failure.
* **Anti-Sandwich Protection**:&#x20;
* By submitting transaction packaging information to a private pool, it completely avoids sandwich attacks.

<br>

<figure><img src="/files/5xZBc8ISZ68Jzp5QEOry" alt=""><figcaption></figcaption></figure>

<br>