Shopify customer accounts - set disabled customers as VAT exempt. Used by Sufio for Shopify (www.sufio.com/shopify). Read more at https://sufio.com/articles/shopify/selling/vat-eu-customers-shopify/vat-exempt-eu/disabled-customers/

shopify-customer-account-disabled.liqud

{% if customer.tags contains 'disabled' %}
<!-- Shopify customer account -- set disabled customer as VAT exempt. Used by Sufio for Shopify (www.sufio.com/shopify). -->
<script type="text/javascript">
  $.ajax({
    type : "GET",
    dataType: "jsonp",
    url: "/apps/sufio/customer-vat/",
    data: { email: "{{ customer.email }}", force_tax_exempt: true }
  });
</script>
{% endif %}

shopify-customer-registration-disabled.liqud

<!-- Shopify customer registration -- checkbox for disabled customers. Used by Sufio for Shopify (www.sufio.com/shopify). -->
<p>
  <input type="checkbox" name="customer[tags]" id="Disability" value="disabled" />
  <label for="Disability" class="inline">Are you registered disabled?</label>
</p>