Comment by tzs

> Because taxes are there to pay for services, there's absolutely no reason why they should increase just because the value of your property... Oh that's not how local governments see it?

Actually that often is how local governments see it in many places.

Local bond issues, which are paid for by property taxes, are often not a fixed rate. They are often a fixed amount (e.g., $2 million/year for 5 years) or a fixed initial amount with some growth allowed (e.g., $2 million/year for 5 years with inflation adjustments, often capped at some maximum adjustment).

With these each year the rate changes to keep the amount collected on target. If aggregate property values go up the rate goes down and if aggregate property values go down the rate goes up. If everyone's property values went up or down by the same percentage the amount of tax each person paid would stay the same.

Your share of the tax is proportional to your share of the aggregate property value, so our individual taxes can change regardless of any changes in aggregate value. For example if aggregate value goes up 5%, but your assessed value us up 10% and mine is up 3% your tax for a fixed amount bond will go up and mine will go down.