Price and VAT in opencart 2.x - php

Question

I m using opencart 2.x for development and i am really stuck in cart and invoices. My scenario is that,
I want to show VAT only while sending invoice to the customer and VAT shall not be visible in Cart but total in cart shall be including VAT.
What I want is to not display the tax in cart and if I disable it in the admin screen it does not count up correctly and is not appearinf in Invoice as well. So it must be hidden in the code.
Presentation in Cart shall be
Subtotal // This subtotal shall inclusive of VAT here
Shipping
Total // This total shall inclusive of VAT here
Presentation in Invoice shall be
Subtotal // This subtotal shall exclusive of VAT here
Shipping
VAT(1%) // VAT is shown here
Total // This total shall inclusive of VAT here
Currently, i have presenation in cart and invoice same as of invoice shown above.
I have enabled Taxes in Extensions > Order Totals but i do not know how to modify the total array in opencart.

Answer 1

You need to replace code :--
catalog/controller/checkout/cart.php
Find Below code :--
foreach ($results as $result)
{
if ($this->config->get($result['code'] . '_status'))
{
$this->load->model('total/' . $result['code']);
$this->{'model_total_' . $result['code']}->getTotal($total_data, $total, $taxes);
}
}
Replace with This Code :--
foreach ($results as $result)
{
if ($this->config->get($result['code'] . '_status'))
{
$this->load->model('total/' . $result['code']);
if($result['code'] != "tax")
{
$this->{'model_total_' . $result['code']}->getTotal($total_data, $total, $taxes);
}
}
}