How To Get The Tax Rate From A Product

Question

I am looking to get the tax rate value from a product (not quote item) in a plugin, which fires on the beforeAddProduct() method.

Currently I have the following in my plugin code:

$taxClassId = $product->getTaxClassId();

this returns an id such as 2 for example.

I attempt to use this value using the Magento\Tax\Api\TaxCalculationInterface getCalculatedRate() method:

$productTaxRate = $this->taxCalculation->getCalculatedRate($taxClassid);

but then this just returns a 0 which is incorrect as in the admin, the Tax Class is set to A_GEN_STANDARD which is set to a rate of 20%

Surely there must be a simple to get the tax rate value from a product?

Just to confirm, this is for a product, not a quote item :)

Thanks everyone

Answer 1

public function __construct(        
    \Magento\Tax\Model\Calculation $taxCalculation,
    \Magento\Store\Model\StoreManagerInterface $storeManager
) {
    $this->taxCalculation = $taxCalculation;
    $this->_storeManager = $storeManager;        
} 
  Public function getTaxPercentage(){
      $productTaxClassId = $product->getTaxClassId();
      $defaultCustomerTaxClassId = $this->scopeConfig->getValue('tax/classes/default_customer_tax_class');
      $store      = $this->_storeManager->getStore(); 
      $request = $this->taxCalculation->getRateRequest(null, null, null, $store);
      $taxRate = $this->taxCalculation->getRate($request->setProductClassId($productTaxClassId))
}

Answer 2

You can get tax rate by:

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();

$taxCalculation = $objectManager->create( 'Magento\Tax\Model\Calculation\Rate' )->load( <tax_rate_id> , 'tax_calculation_rate_id' );

$rate = $taxCalculation->getRate();

Answer 3

You can get tax rates by using \Magento\Tax\Api\TaxCalculationInterface:

    $rate = $this->taxCalculation->getCalculatedRate($productTaxClassId, $customerId, $storeId);