What type of taxes will Sonya pay on her parcel of land after building a home?

Sonya will pay ad valorem taxes on her parcel of land after building a home because these taxes are assessed based on the value of the property. Ad valorem translates to "according to value" in Latin, and these taxes are commonly levied by local governments to fund public services such as schools, police, and infrastructure. Since the value of Sonya's property will likely increase once she builds a home on it, her ad valorem tax obligation will reflect the current assessed value of that property.

While income taxes are related to earnings and capital gains taxes only apply when an asset is sold for a profit, property transfer taxes are charged when ownership of property is transferred, not based on the ownership of a parcel of land that she currently owns and has improved. Thus, ad valorem taxes are the appropriate choice in this context as they directly relate to the ownership and value of the property after construction.