Property tax and insurance costs

@Claudia Ho The issue with this calculator is estimating the taxable value. It is not the purchase price.
In Duval County, the taxable value is 95% of the assessed value. 
However, there is a cap on annual increases to taxable value. I think that It cannot increase more than 3% per year, regardless of the assessed value (95% of the purchase price?).

You can then assume a 3% to 5% annual increase in the assessed value for subsequent years + 1% increase in the mileage rate.

Keep also in mind that there is a 4% discount if you pay the bill by Nov, 3% by December and so on