We receive many requests for estimates of future tax bills. The County and Town budgets that determine the tax rates for the January tax bill are not adopted until November. School budgets (for the September tax bill) are adopted in May.
Another unknown factor is your property tax exemptions; many must be renewed each year. If you fail to renew, or your qualifications change, (perhaps due to an income change), it will affect the amount due.
We strongly recommend you use prior years' tax bills as an approximate minimum.