> For the complete documentation index, see [llms.txt](https://help.stockeo.solvenium.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.stockeo.solvenium.com/data-mapping/charge-tax.md).

# Charge tax

Stockeo allows you to decide whether to charge tax on a product based on data from the product feed.

In the Data Mapping section, open the Add field dropdown, and select "Charge tax". Then specify the field in your product feed that determines whether a product is taxable.

<figure><img src="/files/k1ctbjMsxtSc2mxr0ALu" alt=""><figcaption><p>Stockeo - <em>Charge tax</em> field</p></figcaption></figure>

The "Charge tax" field accepts the below values.

Positive values:

* yes, Yes, YES
* true, True, TRUE
* 1

Negative values:

* no, No, NO
* false, False, FALSE
* 0

You can use a Liquid expression to convert unsupported values, or to specify a fixed value.

For example, when your feed contains a VAT\_Taxable field with one of the two values *Y*, and *N*:

```
{%- case VAT_Taxable -%}
{%- when "Y" -%} yes
{%- when "N" -%} no
{%- else -%} yes
{%- endcase -%}
```

To specify a fixed value:

```
{{ "yes" }}
```


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