Remember that in the US, most of this stuff is governed by state and/or local law. What is normal in one state would never happen in others.
The valuation in Texas is every 2 years, I think. My point was that it should be accurate if the state is going to up your valuation. Of course it would be easier if they just 'fixed' the rates. Then, natural increases in value would increase revenue.
NH has both sales and income taxes. Unlike most states, both of those taxes have significant limitations.
Five states in the United States including Alaska, Oregon, New Hampshire, Delaware, and Montana, do not levy a state sales tax.
www.investopedia.com
Fyi, there is really no such thing as a business or corporate tax. 100% of those are passed to consumers, employees and/or owners. Corporate income is double taxed as the Corp submits funds to the government and then the stockholders pay again when they get their money out. One of the few disadvantages of incorporation versus other business types.