Magento 2 - Get tax sum

Question

In checkout It shows a summary with all costs, it also shows the tax costs (Steuer [german]).

How can I get the tax costs from PHP?

Answer 1

Assuming you have the quote:

$totals = $quote->getTotals();
$tax = (isset($totals['tax'])) ? $totals['tax']->getValue(): 0;

If you do not have the quote you can inject \Magento\Checkout\Model\Session $checkoutSession to your constructor and get the quote using:

$quote = $checkoutSession->getQuote();