Apartment Maintenance Charges Bengaluru: Sinking Fund, GST and the Hidden Trade-off

In June 2026, a couple closing on a two-bedroom flat near Whitefield noticed the line that buyers almost never read twice. The builder quoted maintenance at a tidy figure per square foot, far below the tower next door. It looked like a win. It was not. Apartment maintenance charges Bengaluru buyers face reward a closer look, because the lower rate left almost nothing for the sinking fund, the reserve that pays for lift replacements and the next exterior repaint, and within two years owners faced a special levy to cover work the monthly charge should have funded all along. The headline number was the trap, not the deal.

The short answer. Apartment maintenance charges Bengaluru buyers pay are usually billed per square foot of carpet or super built-up area, often in the broad range of roughly Rs 2 to Rs 7 per sq ft per month depending on the micro-market and amenities, plus a separate sinking or corpus fund that frequently sits around Rs 0.5 to Rs 1.5 per sq ft per month. Goods and Services Tax (GST) at 18% applies once monthly maintenance crosses Rs 7,500 per member, and only when the association's aggregate turnover also exceeds Rs 20 lakh. The trade-off: a low quoted maintenance rate can mean an underfunded sinking fund, which surfaces later as special levies you did not budget for.

Quick facts: in Bengaluru as of June 2026, maintenance is commonly charged per square foot and GST at 18% kicks in above Rs 7,500 per month per member under the Reserve Bank of India era Central Board of Indirect Taxes and Customs (CBIC) Circular 109/28/2019-GST dated 22 July 2019.

How are apartment maintenance charges Bengaluru buyers pay calculated, per sq ft or equal split?

Most Bengaluru apartments calculate maintenance per square foot, though some smaller societies use an equal split per flat. In the per square foot model, your monthly charge is your unit area multiplied by a rate, so a 1,200 sq ft flat at Rs 3.5 per sq ft pays Rs 4,200 a month before any GST. The logic is that larger units draw proportionally more from shared services, so they should pay more. The equal-split model divides total expenses equally across all flats regardless of size, which favours owners of larger units and penalises owners of compact ones.

Neither method is mandated for self-funded associations, but the legal default leans toward proportionality. Under the Karnataka Apartment Ownership Act 1972 (KAOA), common expenses are charged to apartment owners according to the percentage of undivided interest in the common areas, a point we return to below. The per square foot approach is the practical proxy most Bengaluru associations adopt because it tracks that proportionality closely without recalculating undivided shares every month. When you compare two projects, normalise the quote: convert any flat monthly figure back to a per square foot rate so you are comparing like with like.

What is a sinking fund or corpus fund, and what are typical norms?

A sinking fund is a reserve built up from monthly contributions to pay for large, infrequent capital expenses such as lift replacement, structural repairs, water-proofing, and exterior repainting. It is distinct from the routine maintenance charge, which covers day-to-day running costs like security, housekeeping, common-area electricity, and minor repairs. The sinking fund exists precisely so the community does not have to pass the hat around when a Rs 30 lakh lift overhaul lands.

In Bengaluru, industry write-ups commonly describe sinking fund contributions in the region of Rs 0.5 to Rs 1.5 per sq ft per month, though there is no single statutory rate for associations formed under the KAOA. Some builders instead collect a one-time corpus fund at handover, a lump sum meant to seed the reserve. The buyer-side concern is whether the ongoing contribution is enough to keep pace with the building's ageing. A glittering tower with a token sinking fund is a future liability dressed as a bargain. Ask for the reserve balance, the contribution rate, and whether a reserve study or repair schedule exists.

When does GST apply to apartment maintenance in Bengaluru?

GST applies to apartment maintenance only when two conditions are met at the same time. First, the monthly maintenance charged by the association per member must exceed Rs 7,500. Second, the association's aggregate annual turnover must exceed Rs 20 lakh, the registration threshold below which it need not register or charge GST at all. When both apply, the rate is 18%. These conditions come from CBIC Circular 109/28/2019-GST dated 22 July 2019, which clarified GST treatment for resident welfare associations. You can read the framework explained at ClearTax on GST on housing maintenance charges.

Two practical wrinkles matter for buyers. The sinking fund contribution and statutory dues like property tax are generally not treated the same as the taxable maintenance service, so the Rs 7,500 test is about the maintenance component. And per CBIC's reading, once you cross Rs 7,500, GST is charged on the entire amount, not merely the excess. A 2021 Madras High Court order in the Greenwood Owners Association case held that tax should apply only to the amount above Rs 7,500, but that single-judge order was stayed on appeal, so the CBIC full-amount position remains the cautious assumption for budgeting.

What role does the owners' association play under the Karnataka Apartment Ownership Act?

The owners' association is the legal vehicle that collects maintenance, holds the sinking fund, and runs the common areas, and the Karnataka Apartment Ownership Act 1972 gives that structure its statutory backbone. The Act defines an association of apartment owners as all the owners acting as a group under the bye-laws and the Declaration. Crucially, it provides that common expenses are charged to owners according to their percentage of undivided interest in the common areas, and that this undivided interest cannot be separated from the apartment it belongs to. The official text of the Act is published by the Government via India Code, the national repository of statutes.

The bye-laws annexed to the Declaration spell out how the association collects each owner's share of common expenses, how the managing committee is elected, and how accounts are kept. For deeper reading on how the statute and the association interact, see our previous coverage in the Karnataka Apartment Ownership Act and owners' association rules for Bengaluru. A well-run association publishes audited accounts and a transparent reserve position. A poorly run one is where underfunded sinking funds and surprise levies breed.

How does undivided share of land affect what you pay?

Your undivided share, the percentage of the common land and areas attached to your flat, is the legal basis for your maintenance liability and a quiet driver of cost. The KAOA charges common expenses in proportion to that percentage, so two flats of identical carpet area can in principle carry different shares depending on how the Declaration allocates them. In practice associations approximate this with the per square foot model, but the undivided share is the underlying right that the law actually counts.

The undivided share also shapes your stake in any future redevelopment and your voice in the association, which is why buyers should never treat it as a formality. We explain the mechanics in detail in our guide to undivided share of land (UDS) for Bengaluru apartment buyers. Before you sign, check that the undivided share stated in your sale deed is consistent with your unit size relative to the project, because an unusually low share can understate your asset value even as your maintenance is billed on built-up area.

How can buyers compare maintenance offers without being misled?

Compare the all-in monthly cost, not the headline rate, and weigh the reserve behind it. The cheapest per square foot quote is meaningless if the sinking fund is starved, because the shortfall returns as a special levy that no glossy brochure mentions. Normalise every offer to a per square foot figure, add the sinking fund contribution, and then ask the hardest question: is the reserve adequate for a building of this age and height? A tower with lifts and a pool needs a deeper reserve than a low-rise walk-up.

What should buyers check before paying maintenance in a Bengaluru apartment?

Before you accept any maintenance arrangement, run a short due-diligence list so the quoted rate does not hide a future bill. The checklist below is buyer-side and practical.

1. Convert every quote to a per square foot rate so you compare projects on the same basis.
2. Ask for the current sinking fund balance and the monthly contribution rate per sq ft.
3. Request the last two years of audited association accounts and the reserve trend.
4. Confirm whether GST at 18% will apply, given the Rs 7,500 per member and Rs 20 lakh turnover tests.
5. Check that the undivided share in your sale deed matches your unit size relative to the project.
6. Read the bye-laws annexed to the Declaration to see how common expenses are collected.
7. Ask whether any special levy is planned or has been raised in the past three years.

Is the sinking fund the same as the monthly maintenance charge?

No. The monthly maintenance charge pays for day-to-day running costs such as security, housekeeping, and common-area power. The sinking fund is a separate reserve built up over time for large capital expenses like lift replacement, structural repairs, and exterior repainting. A low maintenance rate paired with a starved sinking fund usually means a future special levy.

When exactly does 18% GST apply to my maintenance bill?

GST at 18% applies only when both conditions are met. Your monthly maintenance per member must exceed Rs 7,500, and the association's aggregate annual turnover must exceed Rs 20 lakh. If either threshold is not crossed, no GST is charged. This follows CBIC Circular 109/28/2019-GST dated 22 July 2019 clarifying GST for resident welfare associations.

Does my undivided share change what I pay for maintenance?

Legally, yes. The Karnataka Apartment Ownership Act 1972 charges common expenses to owners in proportion to their percentage of undivided interest in the common areas. Most Bengaluru associations approximate this with a per square foot rate, but the undivided share recorded in your sale deed is the underlying legal basis the statute actually counts.

Is per square foot billing better than an equal split for buyers?

It depends on your unit size. Per square foot billing charges larger flats more and compact flats less, tracking the proportionality the law favours. An equal split divides total expenses equally per flat, which benefits large-unit owners and penalises compact-unit owners. Owners of smaller flats generally fare better under per square foot billing.

Last updated 2026-06-26. PropNewz Team.