What is fit tax?

As an AI language model, I do not have access to current tax information as it constantly changes and varies by country, state and city. However, FIT tax could refer to several things such as:

1. Federal Income Tax: This is a tax levied on the income earned by individuals and businesses. The federal government collects this tax and uses it to fund various programs and services.

2. Fitness Tax: This is not an actual tax but rather a term used to describe the additional costs associated with living a healthy and active lifestyle, such as gym memberships and healthy food choices.

3. Financial Transaction Tax: This is a tax levied on financial transactions such as stock trades, bond purchases, and currency exchanges.

Without more context, it's difficult to determine what exactly you are referring to when you mention FIT tax.