# $taxRulesField->isActive()

> Checks if the field is currently active or hidden because of a `when` condition

- Source: `src/Form/Mixin/When.php#L27` <https://github.com/getkirby/kirby/blob/6.0.0-beta.1/src/Form/Mixin/When.php#L27>
- Inherited from Kirby, not part of the Merx API. See <https://getkirby.com/docs/reference>.

```php
$taxRulesField->isActive(): bool
```

## Return type

`bool`

## Parent class

`Wagnerwagner\Merx\TaxRulesField` inherited from `Kirby\Form\Field`