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

# Checkout & Pricing Properties

> Properties for checkout and purchase events — pricing breakdown, payment methods, and shipping details.

Checkout and pricing properties provide detailed order information for purchase and checkout events.

## Properties

<CardGroup cols={3}>
  <Card title="subtotalPrice" icon="receipt" href="/pixel/events/properties/subtotal-price">
    Subtotal before tax/shipping.
  </Card>

  <Card title="tax" icon="percent" href="/pixel/events/properties/tax">
    Tax amount applied.
  </Card>

  <Card title="shipping" icon="truck" href="/pixel/events/properties/shipping">
    Shipping cost.
  </Card>

  <Card title="discount" icon="tag" href="/pixel/events/properties/discount">
    Total discount amount.
  </Card>

  <Card title="coupon" icon="ticket" href="/pixel/events/properties/coupon">
    Promo code used.
  </Card>

  <Card title="paymentType" icon="credit-card" href="/pixel/events/properties/payment-type">
    Payment method.
  </Card>

  <Card title="shippingTier" icon="gauge-high" href="/pixel/events/properties/shipping-tier">
    Shipping speed selected.
  </Card>
</CardGroup>

## Quick Reference

| Property        | Type   | Description                      |
| --------------- | ------ | -------------------------------- |
| `subtotalPrice` | number | Subtotal before tax and shipping |
| `tax`           | number | Tax amount                       |
| `shipping`      | number | Shipping cost                    |
| `discount`      | number | Total discount amount applied    |
| `coupon`        | string | Coupon or promo code used        |
| `paymentType`   | string | Payment method used              |
| `shippingTier`  | string | Shipping tier selected           |
| `cartId`        | string | Shopping cart identifier         |
| `affiliation`   | string | Store or affiliate name          |

## Example

```javascript theme={null}
window._upstack('track', 'purchase', {
  transactionId: 'ORD-12345',
  value: 134.99,
  currency: 'USD',
  subtotalPrice: 149.99,
  tax: 12.00,
  shipping: 8.00,
  discount: 35.00,
  coupon: 'SAVE25',
  paymentType: 'credit_card',
  shippingTier: 'express',
  items: [/* ... */]
});
```