> For the complete documentation index, see [llms.txt](https://help.checkoutchamp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.checkoutchamp.com/crm/plugins/tax-services/numeral.md).

# Numeral

When enabled on a campaign, the Numeral plugin will perform tax rate calculations on your checkout page and your Order Entry page within the CRM. The enabled campaigns will send sales, upsells, rebills, and refunds/voids to Numeral for calculations and reporting.

### **Enabling and Setting Up the** Numeral **Plugin** <a href="#taxjar-enablingandsettingupthetaxjarplugin" id="taxjar-enablingandsettingupthetaxjarplugin"></a>

**Step 1.**

Activate the Numeral plugin

* Pick the **Admin** section from the navigation sidebar
* Go to the **Plugins** page (Admin->Plugins)
* Pick the **Tax Services** tab
* Click the **Numeral** tile
* Click **+ Activate**.

<figure><img src="/files/4PKBxyNKJPCx4LCL0RZf" alt="" width="279"><figcaption></figcaption></figure>

**Step 2.** Enter needed information for the plugin

* Enter the **API Key** received from Numeral
* Enter a **Friendly Name** for this plugin, to identify it on Campaigns
* Use **sendTransactions** to save transactions in Numeral.  Uncheck this to calculate tax only.
* Use **taxIncludedInPrice** to calculate VAT
* Use **calculateShippingTax** to calculate tax on shipping
* Use **excludeTestCards** to not calculate tax on test orders

**Step 3.** Press the green **Connect** button to connect your Numeral account to CheckoutChamp.

<figure><img src="/files/uLZWtFic8nTkjjV7w2EY" alt="" width="375"><figcaption></figcaption></figure>

**Step 4.** [Add Numeral to Campaigns](/crm/plugins/tax-services/numeral/add-numeral-to-campaigns.md)

**Step 5**.  Setup Numeral product category

* Go to CRM > Products
* Edit a product
* Enter NUMERAL:\[the Numeral product category] as a Product Tag (without the brackets).  It must begin with "NUMERAL:" (all caps).
* If the proper tag is not entered on a base product then the category sent to Numeral will be GENERAL\_MERCHANDISE