Sinking fund rules for housing societies
The sinking fund is the difference between a society that can pay for structural repair when it becomes necessary and one that levies a panic contribution from members who have already paid for it once.
A sinking fund accumulates for major structural repair and eventual reconstruction. Under the widely used Maharashtra model bye-laws the minimum contribution is 0.25 per cent per annum of the construction cost of each flat, excluding land. It may be used only for the purposes the bye-laws permit and generally requires general body approval.
What is a sinking fund?
A sinking fund is money set aside now for a large, certain, distant cost. A building will need structural repair; concrete will spall, reinforcement will corrode, waterproofing will fail, and eventually major elements will need replacement or the structure will need substantial rehabilitation. None of that is a surprise, and all of it is expensive.
The alternative to a fund is a levy at the point of need — a special assessment of a large amount from every member in the year the work becomes unavoidable. That is worse in every respect. It falls on whoever happens to own the flat that year rather than on the owners across whose occupancy the deterioration accumulated, it is far harder to collect, and it frequently gets deferred for years while the building degrades further.
The sinking fund is therefore an intergenerational fairness mechanism as much as a financial one. The owner who holds a flat for eight years pays for eight years of the building’s ageing, whether or not the work happens on their watch.
- The cost is certain, only the timing is not. Structural work is a when, not an if.
- A levy at the point of need falls on the wrong people. Whoever owns the flat that year pays for decades of ageing.
- Under-funding defers the work. And deferred structural repair gets more expensive, not less.
Minimum contribution rules
The Maharashtra model bye-laws prescribe a sinking fund contribution of at least 0.25 per cent per annum of the construction cost of each flat, excluding the cost of land. This is the figure most widely quoted in India, and it is a minimum rather than a recommendation — the general body may resolve a higher rate, and where the building is ageing or the reserve is visibly inadequate it generally should.
The figure is Maharashtra’s. Other states’ model bye-laws and Acts prescribe their own, and societies registered under other frameworks should not assume it applies to them. Check your own registered bye-laws for the rate that binds your society before setting or defending a contribution.
The rate is applied to construction cost, not to market value and not to the price the member paid. Those diverge enormously in Indian cities, and a society applying the percentage to a purchase price will arrive at a figure many times the prescribed minimum. Construction cost excluding land is the base, and for older buildings where the original figure is unavailable it is usually established by reference to a valuer or to prevailing construction rates.
- 0.25 per cent per annum is a Maharashtra model bye-law minimum. Not a national rule, and not a ceiling.
- The base is construction cost excluding land. Not market value and not the purchase price.
- The general body may resolve more. And for an ageing building, usually should.
How the contribution is calculated
The minimum accumulates slowly, which is the point worth putting to a general body: whether a crore across twenty years is adequate for the structural work the building will actually need.
| Step | Basis | Example |
|---|---|---|
| Construction cost of the flat | Excluding land | ₹2,000 per sq ft × 1,000 sq ft = ₹20,00,000 |
| Annual contribution at 0.25% | 0.25% of construction cost | ₹5,000 per year |
| Monthly contribution | Annual ÷ 12 | ₹417 per month |
| Accumulated over 20 years | Before any investment return | ₹1,00,000 per flat |
| Across a 100-flat society | Assuming comparable flat sizes | Roughly ₹1 crore before returns |
What the fund can and cannot be used for
The sinking fund is for major structural work — reconstruction, substantial structural repair and strengthening, and the replacement of major building elements at the end of their life. It exists for the expenditure that is too large to meet from the annual budget and that arises at intervals of decades rather than years.
It is not for routine and planned maintenance. Painting, minor plumbing renewal, garden work, equipment servicing and ordinary repairs belong to the repair and maintenance fund and to the annual budget. A society that funds routine repainting from the sinking fund has spent the structural reserve on housekeeping, and the distinction matters precisely because the temptation to blur it is constant.
The harder cases sit between. Replacing a lift at the end of its life, waterproofing an entire terrace, replacing the plumbing risers throughout a building — whether these fall to the sinking fund or the repair fund depends on scale and on what your bye-laws say. Where it is genuinely ambiguous, take the general body’s approval expressly rather than deciding at committee level, because that approval is what protects the committee later.
- Yes: structural repair, strengthening, reconstruction. And end-of-life replacement of major elements.
- No: routine repair, painting, servicing, gardening. Those belong to the repair fund and the annual budget.
- Ambiguous cases go to the general body. Express approval is the committee’s protection.
- Approval is generally required to draw on it. Check the majority your bye-laws prescribe.
Investing the sinking fund properly
A sinking fund is money the society will not need for years and may not need for decades, sitting in an account. Left in a current or savings account it loses value against construction cost inflation every year, which in Indian construction has often outpaced ordinary deposit returns. A fund that has been accumulating for fifteen years in a savings account has quietly lost a large part of its purchasing power.
Cooperative societies are generally restricted in where they may invest, typically to scheduled banks and cooperative banks and to instruments the applicable Act and Rules permit. This is a genuine constraint and not a formality — a committee that invests society funds outside the permitted instruments has exposure, however well the investment performs.
The workable approach within those constraints is a ladder of fixed deposits with staggered maturities, held in the society’s name with dual authorisation for withdrawal, reviewed annually by the committee and reported to the general body. Keep the fund identifiable as a separate ledger account rather than merged into general balances, because a fund whose balance cannot be stated is one the auditor will qualify and the members will not trust.
- Idle cash loses to construction inflation. A fifteen-year-old fund in a savings account has lost real value.
- Investment options are restricted by the Act. Stay within permitted instruments regardless of returns available elsewhere.
- Ladder the maturities. Staggered fixed deposits, in the society’s name, dual authorisation.
- Keep it a separate ledger account. A fund whose balance cannot be stated will be qualified.
Terms that get used interchangeably
Four terms whose conflation causes most sinking fund disputes.
- Sinking fund
- A reserve accumulated for major structural repair, strengthening and eventual reconstruction.
- Repair and maintenance fund
- A separate reserve for planned recurring repair — painting, waterproofing, plumbing renewal.
- Construction cost
- The cost of constructing the flat excluding the cost of land; the base for the sinking fund contribution.
- Special assessment
- A one-off levy on members to fund expenditure the reserves cannot meet — what an adequate sinking fund exists to avoid.