7 commerce_tax.api.php hook_commerce_tax_rate_info()

Defines tax rates that may be applied to line items.

Return value

An array of information about available tax rates. The returned array should be an associative array of tax rate arrays keyed by the tax rate name. Each tax rate array can include the following keys:

  • title: the title of the tax rate
  • display_title: a display title for the tax type suitable for presenting to customers if necessary; defaults to the title
  • description: a short description of the tax rate
  • rate: the percentage used to calculate this tax expressed as a decimal
  • type: the name of the tax type this rate belongs to
  • rules_component: name of the Rules component (if any) defined for determining the applicability of the tax to a line item; defaults to 'commerce_tax_rate_[name]'.
  • default_rules_component: boolean indicating whether or not the Tax module should define a default default Rules component using the specified name; defaults to TRUE.
  • price_component: name of the price component defined for this tax rate used when the tax is added to a line item; if set to FALSE, no price component will be defined for this tax rate
  • admin_list: boolean defined by the Tax UI module determining whether or not the tax rate should appear in the admin list
  • calculation_callback: name of the function used to calculate the tax amount for a given line item, returning either a tax price array to be added as a component to the line item's unit price or FALSE to not include anything; defaults to 'commerce_tax_rate_calculate'.

1 function implements hook_commerce_tax_rate_info()

1 invocation of hook_commerce_tax_rate_info()


contributions/commerce/modules/tax/commerce_tax.api.php, line 128
Documents hooks provided by the Tax module.


function hook_commerce_tax_rate_info() {
  $tax_rates = array();

  $tax_rates['ky_sales_tax'] = array(
    'title' => t('KY sales tax'), 
    'rate' => .06, 
    'type' => 'sales_tax',

  return $tax_rates;