MCS Rules 2026: Property Tax on Common Areas, Insurance Must Follow Carpet Area

Many Maharashtra housing societies still split property tax and insurance costs equally across all members, or use old bye-law formulas. A recent legal clarification on the MCS (Amendment) Rules, 2026, notified on 18 June 2026, confirms that two specific charges must now be calculated strictly on carpet area: property tax collected on common areas, and the society's insurance premium.

What Rule 106C-12(4) actually changes

The local municipal authority still fixes the overall property tax rate for the building, and that does not change. What changes is how a society divides the portion of property tax attributable to common areas — lobbies, staircases, terraces, society office and similar shared spaces — among members. Rule 106C-12(4) requires this share to be apportioned according to each flat's carpet area, so a larger flat bears a proportionately larger share than a smaller one. The same carpet-area formula now applies to the society's building insurance premium, replacing equal-split or per-member methods some societies used under the old Bye-laws 66 and 67.

How this differs from other charges under the same rules

It is worth noting the amended rules do not apply one single formula to every charge. Ordinary maintenance service charges must still be split equally per flat regardless of size, and water charges are now billed by the number and size of sanctioned water inlets, not carpet area or a flat rate. Car parking charges continue to be fixed by the general body. Committees should treat carpet area, equal-per-flat, and per-inlet as three separate methods applying to three separate heads, and avoid using one formula across the board out of convenience.

What this means for housing societies

• Committees preparing or revising the FY 2026-27 budget should recalculate the common-area property tax and insurance components using each member's registered carpet area, not the number of members or a flat percentage.
• Societies still billing these two heads on an equal-split basis should amend their charge sheet to avoid member disputes or a challenge before the Registrar or Co-operative Court.
• Carpet area figures used must match the area recorded in the share certificate or sale deed, so committees should reconcile their records before the next bill is raised.
• This apportionment rule sits within the broader Chapter XI-B framework, alongside the 12% cap on overdue-dues interest and the 10% cap on non-occupancy charges already in force since June 2026.

There is no separate compliance deadline attached to this provision, but since it is already in force, societies risk member objections or Registrar scrutiny if bills for the current or next quarter are not aligned with the carpet-area method. Committees unsure how to recompute these heads should consult their society's auditor or a housing society consultant before finalising the next maintenance bill.