protected function get_fees_from_cart() {
		$this->fees = array();
		$this->cart->calculate_fees();

		$fee_running_total = 0;

		foreach ( $this->cart->get_fees() as $fee_key => $fee_object ) {
			$fee            = $this->get_default_fee_props();
			$fee->object    = $fee_object;
			$fee->tax_class = $fee->object->tax_class;
			$fee->taxable   = $fee->object->taxable;
			$fee->total     = wc_add_number_precision_deep( $fee->object->amount );

			// Negative fees should not make the order total go negative.
			if ( 0 > $fee->total ) {
				$max_discount = round( $this->get_total( 'items_total', true ) + $fee_running_total + $this->get_total( 'shipping_total', true ) ) * -1;

				if ( $fee->total < $max_discount ) {
					$fee->total = $max_discount;
				}
			}

			$fee_running_total += $fee->total;

			if ( $this->calculate_tax ) {
				if ( 0 > $fee->total ) {
					// Negative fees should have the taxes split between all items so it works as a true discount.
					$tax_class_costs = $this->get_tax_class_costs();
					$total_cost      = array_sum( $tax_class_costs );

					if ( $total_cost ) {
						foreach ( $tax_class_costs as $tax_class => $tax_class_cost ) {
							if ( 'non-taxable' === $tax_class ) {
								continue;
							}
							$proportion               = $tax_class_cost / $total_cost;
							$cart_discount_proportion = $fee->total * $proportion;
							$fee->taxes               = wc_array_merge_recursive_numeric( $fee->taxes, WC_Tax::calc_tax( $fee->total * $proportion, WC_Tax::get_rates( $tax_class ) ) );
						}
					}
				} elseif ( $fee->object->taxable ) {
					$fee->taxes = WC_Tax::calc_tax( $fee->total, WC_Tax::get_rates( $fee->tax_class, $this->cart->get_customer() ), false );
				}
			}

			$fee->taxes     = apply_filters( 'woocommerce_cart_totals_get_fees_from_cart_taxes', $fee->taxes, $fee, $this );
			$fee->total_tax = array_sum( array_map( array( $this, 'round_line_tax' ), $fee->taxes ) );

			// Set totals within object.
			$fee->object->total    = wc_remove_number_precision_deep( $fee->total );
			$fee->object->tax_data = wc_remove_number_precision_deep( $fee->taxes );
			$fee->object->tax      = wc_remove_number_precision_deep( $fee->total_tax );

			$this->fees[ $fee_key ] = $fee;
		}
	}