> For the complete documentation index, see [llms.txt](https://options-docs.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.avisplus.io/app-features/up-charge-for-specific-variants.md).
# Add Charge for an option value
Checkout our Demo product to see how the Add charge works
Here is the step-by-step instruction on how to set up Add charge.
**Step 1.** Clicking on **Add Option** in the **Option Set** tab, you will see a pop-up window for Option detail.
**Step 2.** In the field **Option values,** find the option value you want to add charge and fill in the desired extra charge.
In this example, I want to add $25 for the medium size and $30 for the large size. If your default currency is USD, it will be 25 USD and 30 USD additional charges.
**Step 3.** Hit **Save** in the bottom right corner of the popup and **Save changes** on the top right corner of the **Option Set** tab and you're all done 🤗
**-> Here is how the Add charge option will show on the Product page.**
**-> Here is how the Add charge option will show on the Cart page.**
**-> Here is how the Add charge option will show on the Checkout page.**