I wish that were true! That would make my job so much easier lol!
Tax assessed value is just that. The value that a municipality sets to tax the owner. Very rarely will tax assessed value be a true indication of fair market value. It often comes close, but is never an accurate indicator.
When a home is accurately priced, it must be done based upon amenities, location and of course supply and demand in a certain area. I have seen homes that were overtaxed by a city and the fair market value was 35k below assessed value.
If you are interested in what your homes fair market value as opposed to what you're being taxed on, send me an email and I can give you a loose CMA and than can help you narrow the field for you.