> For the complete documentation index, see [llms.txt](https://options-docs-v2.avisplus.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://options-docs-v2.avisplus.io/pricing-and-upsell/add-charge-add-ons/add-charge-v1.0-legacy.md).
# Add charge v1.0 (Legacy)
This version is no longer available for new stores and cannot be downgraded to.
### How to Create an Add Charge
Follow these steps to set up the Add Charge feature:
**1. Create a New Option Set**
Go to the **Avis Option tab** → click **Create Option Set**.
**2. Add an Option**
Click **Add Option** and choose the **Option Type** for your Add Charge (e.g., dropdown, button, swatch, etc.).
**3. Set the Add Charge Value**
Under **Option values**, find the value you want to add a charge to.
* Click **Keep price** → choose **Add charge** from the dropdown.
* Enter the amount you’d like to add to the product’s base price.
Example:\
If you set 25 for Medium and 30 for Large, and your store’s default currency is USD, the additional charges will be $25 and $30.
**4. Assign to Products**
In the **Select product** section,
choose the products that should include this Option Set.\
Finally, click **Save** at the top right corner to apply your changes.
### How It Appears on Your Store
**-> Here is how the Add Charge will show on the Product page.**
Customers will see the option values with the updated pricing displayed clearly.
**-> Here is how the Add Charge option will show on the Cart page.**
After selecting an Add Charge option, the product will be added to the cart with the total updated price (base price + add charge).
**-> Here is how the Add Charge option will show on the Checkout page.**
At checkout, the system automatically adds the total price - you’ll see the main product and an associated “add-on” charge line, handled by our app for accurate billing.
**-> Here is how it appears on the Order details**
**-> Here is the draft order which is created to generate the add charge**