the word "dwell"
You need to buy things, and, when you buy things, you pay sales taxes. You need to live someplace. Whether you own a place or rent a place, there are property taxes on that dwelling.
What is "on that dwelling"?

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Answer

We would all like to help you, but this word is in the dictionary and we should all give you a chance to look it up yourself.

Answer

In this case "dwelling" is a noun synonymous with "place."

For dictionary questions, see m-w.com first.

Answer

"Dwelling" is a generic word that refers to the building in which you live, be it a house, apartment, flat, condominium, or whatever.  :)    The author of the sentence you posted says that there is a tax on the dwelling (on the place you live).  In the US, such a tax is usually called a "real property tax."