# Chapter 5.1.7 - Billing Period

Source: https://developer.avalara.com/products/communications/integration-guides/dev-guide_rest_v2/reference/billing-period/

-   [Previous](/communications/dev-guide_rest_v2/reference/line-item/)
-   [Next](/communications/dev-guide_rest_v2/reference/tax-override/)

### Billing Period

The `BillingPeriod` object allows the user to specify the billing period for the invoice.

Key

Value

`month`

`[int]` Month  

Billing Period month  

`year`

`[int]` Year  

Billing Period year  

### Example

```json
"bpd": { "month": 06, "year": 2019}
```

-   [Previous](/communications/dev-guide_rest_v2/reference/line-item/)
-   [Next](/communications/dev-guide_rest_v2/reference/tax-override/)