Mandy: There are two houses priced at this price point in the township. Robbinsville taxes are under pressure (what township's taxes are not?) and this one may be recalculated in a flash. The other one at this listing price is taxed at $12,140 according to the MLS. I would GUESS that that would be a reasonable point to start guessing where the tax will end up. You should also be aware that the place is NOT complete and that you are offered a credit to complete the HVAC work.
If that's your cup of tea, fine but if not, you should at least be aware of the situation. Perhaps you should engage an agent and tour houses in the price range that you can afford in the area. One house is a very small sample on which to make a decision.