Work out property tax assessment instantly with clear inputs, formula shown and shareable results.
Under the annual rateable value system, tax is a percentage of a notional annual letting value, itself derived from built-up area times a notified rate for the locality and building type. Rebates for self-occupancy, early payment, building age or senior citizenship are applied to the gross demand.
Rateable value
ARV = built-up area x notified annual rate per ft²
Tax
Tax = ARV x tax rate x (1 - rebates)
Preliminary estimate only. Property tax bases, rates and rebates vary by municipality and must be confirmed with the local authority.
ARV = built-up area x notified annual rate per ft². Under the annual rateable value system, tax is a percentage of a notional annual letting value, itself derived from built-up area times a notified rate for the locality and building type.
Capital value based assessment, where tax is a percentage of market or guidance value. It tracks property prices more closely but produces sharper increases on revaluation.
This calculator takes 4 inputs: Built-up area, Annual rateable rate, Property tax rate, Rebate for early payment or self occupancy. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.