> ## Documentation Index
> Fetch the complete documentation index at: https://docs.numeral.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Integrations Overview

> Connect Numeral to your ERP, ecommerce platform, and billing systems.

Numeral provides native integrations for the platforms your business already runs on. Each integration handles tax calculation at checkout or invoice time and records completed transactions back to Numeral for filing and nexus monitoring.

If you don't see your platform listed, you can integrate directly with the [Numeral API](/api-reference/v2026-03-01/introduction).

## Supported platforms

<CardGroup cols={2}>
  <Card title="Acumatica" href="/integrations/acumatica">
    Native tax provider plugin for Acumatica ERP 2020 R2 and later.
  </Card>

  <Card title="Adobe Commerce" href="/integrations/adobe-commerce">
    Real-time US sales tax calculation for Adobe Commerce and Magento Open Source.
  </Card>

  <Card title="Business Central" href="/integrations/business-central">
    Microsoft Business Central tax extension for Sales Orders, Invoices, and Credit Memos.
  </Card>

  <Card title="Campfire" href="/integrations/campfire">
    Automate sales tax calculations and invoice processing via API key and webhook integration.
  </Card>

  <Card title="Chargebee" href="/integrations/chargebee">
    Apply accurate sales tax to Chargebee invoices and credit notes using Numeral's tax engine.
  </Card>

  <Card title="CheckoutChamp" href="/integrations/checkoutchamp">
    Connect your CheckoutChamp account to Numeral in 3 steps for automated US sales tax calculation.
  </Card>

  <Card title="Fulfil" href="/integrations/fulfil">
    Real-time US tax calculation on manual orders and transaction reporting for posted invoices.
  </Card>

  <Card title="JustPaid" href="/integrations/justpaid">
    Automate sales tax calculations and invoice processing on your JustPaid invoices using Numeral's tax engine.
  </Card>

  <Card title="Maxio" href="/integrations/maxio">
    Real-time US sales tax calculation for Maxio subscriptions, invoices, voids, and refunds.
  </Card>

  <Card title="NetSuite" href="/integrations/netsuite">
    SuiteTax engine SuiteApp for tax calculation on sales transactions.
  </Card>

  <Card title="Odoo" href="/integrations/odoo">
    Install the Numeral Tax addon on your Odoo.sh project for automated US sales tax calculation.
  </Card>

  <Card title="QuickBooks Online" href="/integrations/quickbooks-online">
    Apply accurate sales tax to QuickBooks Online invoices using Numeral's tax engine.
  </Card>

  <Card title="Rillet" href="/integrations/rillet">
    Automatically calculate, track, and file sales tax on your Rillet invoices.
  </Card>

  <Card title="SaaSGrid" href="/integrations/saasgrid">
    Automated tax calculation and transaction reporting for Grid Billing through the Numeral integration.
  </Card>

  <Card title="Sage Intacct" href="/integrations/sage-intacct">
    Calculate and record tax on AR Invoices, Payments, and Adjustments via Web Services and Smart Events.
  </Card>

  <Card title="Salesforce Commerce Cloud" href="/integrations/salesforce-commerce-cloud">
    Real-time tax at checkout via the `plugin_numeral` cartridge and OCAPI client integration.
  </Card>

  <Card title="Salesforce Sales Cloud" href="/integrations/salesforce-sales-cloud">
    Automated tax calculation on Salesforce Quotes and Orders with transaction filing.
  </Card>

  <Card title="SAP S/4HANA" href="/integrations/sap-s4hana">
    Configure SAP communication objects for tax calculation, product sync, customer sync, and billing sync.
  </Card>

  <Card title="Sequence" href="/integrations/sequence">
    Integrate with Sequence to automatically calculate sales tax for invoices.
  </Card>

  <Card title="Shopify" href="/integrations/shopify/shopify-partner-access">
    Manage tax collection, product categorization, and sales channel configuration for Shopify stores.
  </Card>

  <Card title="Stripe" href="/integrations/stripe/stripe-invoices">
    Apply accurate sales tax to Stripe Invoices using Numeral's tax engine.
  </Card>

  <Card title="Tabs" href="/integrations/tabs">
    Connect Tabs to Numeral through QuickBooks Online to automatically apply sales tax to invoices.
  </Card>

  <Card title="WooCommerce" href="/integrations/woocommerce">
    Real-time US sales tax at checkout, or export historical orders for a nexus study.
  </Card>

  <Card title="Xero" href="/integrations/xero">
    Automated US sales tax calculation written back to Xero invoices in real time.
  </Card>

  <Card title="Zoho Books" href="/integrations/zoho-books">
    Connect Zoho Books to Numeral to automatically calculate and apply accurate sales tax on your quotes and invoices.
  </Card>
</CardGroup>

## Connect your Marketplaces to Numeral

<CardGroup cols={2}>
  <Card title="Marketplaces" href="/integrations/marketplaces">
    Connect Amazon, eBay, and Walmart to Numeral to track nexus thresholds and stay compliant with your reporting obligations.
  </Card>
</CardGroup>

## Link Your HR System to Track Physical Nexus Obligations

<CardGroup cols={2}>
  <Card title="HR Systems" href="/integrations/hr-systems">
    Connect your HR system to Numeral to automatically track physical nexus and stay compliant with state sales tax requirements.
  </Card>
</CardGroup>

## Before you start

Every integration requires:

* A Numeral account with API access — sign in at [dashboard.numeralhq.com](https://dashboard.numeralhq.com)
* A **test mode** API key for your initial setup
* Admin access to your platform to install the integration and configure credentials

We recommend completing the [Quickstart](/essentials/quickstart/quickstart) first to confirm your API credentials work before installing a platform integration.

## Need help?

Reach out to your Numeral implementation contact or email [support@numeralhq.com](mailto:support@numeralhq.com) for installation assistance.