However, there are words related to "tax" that include suffixes. Here are a few examples:
* Taxation: This adds the suffix "-ation" to "tax" to mean the act of taxing.
* Taxpayer: This adds the suffix "-payer" to "tax" to refer to a person who pays taxes.
* Taxable: This adds the suffix "-able" to "tax" to mean something that is subject to taxation.
* Taxing: This adds the suffix "-ing" to "tax" to mean the act of taxing something.
Do you have a specific word related to "tax" that you're curious about?