Maintenance Charges Calculator

Work out maintenance charges instantly with clear inputs, formula shown and shareable results.

About Maintenance Charges Calculator

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.

Formulas

Maintenance charge

Monthly = area x rate per ft²; period charge = monthly x months

Total

Total = period charge x (1 + sinking fund rate)

Worked example

With the default values below, Maintenance Charges Calculator returns Total payable for the period of $55,440.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Unit areaminimum 0 ft²: 1,200 ft²
Maintenance rateminimum 0 per ft² per month: 3.5 per ft² per month
Billing periodminimum 1 months: 12 months
Sinking fund additionaccepts 0–50 %: 10 %

Results

Total payable for the period: $55,440.00
Monthly maintenance charge: $4,200.00
Maintenance for the period: $50,400.00
Sinking fund contribution: $5,040.00

Step by step

1Values used
2Maintenance charge
3Total
4Total payable for the period= 55,440.00
5Monthly maintenance charge= 4,200.00
6Maintenance for the period= 50,400.00
7Sinking fund contribution= 5,040.00

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax or fees or charges into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Maintenance Charges figure worked out?

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.

Should charges be per square foot or per unit?

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.

What values do I need to enter?

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.