# $tax->rate()

> Converts the tax rate to a formatted string

- Source: `src/Tax.php#L52` <https://github.com/wagnerwagner/merx/blob/2.0.0-alpha.11/src/Tax.php#L52>

```php
$tax->rate(): string
```

## Return type

`string`

## Description

E.g. 19 %. Empty when the tax has no single rate.

## Parent class

`Wagnerwagner\Merx\Tax`