Buying a home is expensive enough without opening the mailbox and finding out your property taxes could be headed much higher. That's the situation one homeowner found themselves in after receiving a new property tax assessment just two years after buying their house. "Our valuation jumped by 35%, which is going to add hundreds of dollars to our monthly payment," they wrote on Reddit recently. Looking at Zillow, they said, "there is no way our house is worth what the county says it is." Some commenters also reminded the homeowner that a higher assessed value doesn't always translate into a matching increase in property taxes.