Work out maintenance charges instantly with clear inputs, formula shown and shareable results.
Maintenance is normally charged per square foot per month, so the monthly bill is area times rate. A sinking fund contribution is added on top to build reserves for periodic major works such as lift replacement, painting and waterproofing, which cannot be met from routine collections.
Maintenance charge
Monthly = area x rate per ft²; period charge = monthly x months
Total
Total = period charge x (1 + sinking fund rate)
Monthly = area x rate per ft²; period charge = monthly x months. Maintenance is normally charged per square foot per month, so the monthly bill is area times rate.
Per square foot is fairer for costs that scale with size, but shared costs such as security and lighting arguably should be split equally per unit. Most societies use a hybrid.
This calculator takes 4 inputs: Unit area, Maintenance rate, Billing period, Sinking fund addition. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.