Sinking Fund vs Capital Works Fund: How Strata Terminology Differs Across Australia

If you own an apartment in Sydney, your building has a capital works fund. If you own one in Brisbane, it's a sinking fund. In Perth it's a reserve fund. In Melbourne, it lives inside a maintenance plan. Across all eight Australian jurisdictions, the same financial concept goes by at least five different names, and the inconsistency catches out owners who buy interstate, committee members reading guidance written for another state, and anyone trying to compare two schemes side by side.

This article explains what each name means, why the terminology evolved this way, and the more important question that lurks under the labels: how to assess whether your building's long-term fund is actually adequate, regardless of what the legislation calls it.

The same financial concept under five names

Every Australian strata scheme is required to maintain two funds. One pays for the year-to-year operating costs of the building: insurance, cleaning, gardening, electricity, the strata manager's fee, lift servicing. The other is the long-term reserve, where money is accumulated over time to pay for major capital expenditure that comes around every few years to a few decades: repainting, lift replacement, roof renewal, façade work, waterproofing, plant replacement.

That second fund is what this article is about. The state-by-state names:

State	Long-term reserve fund
New South Wales	Capital works fund
Victoria	Maintenance plan fund
Queensland	Sinking fund
Western Australia	Reserve fund
South Australia	Sinking fund
Tasmania	Sinking fund
Australian Capital Territory	Sinking fund
Northern Territory	Sinking fund

The mechanics are identical in every state: each year, the owners corporation (or body corporate, or strata company, depending on the state) sets a contribution rate, owners pay that contribution as part of their levies, and the money accumulates in a separate account dedicated to long-term works.

NSW: the 2016 rename

The most common label across Australia is "sinking fund", which was also the term used in NSW until 2016. The Strata Schemes Management Act 2015, which commenced on 30 November 2016, renamed the NSW long-term fund to "capital works fund". The rationale was that "capital works" describes what the fund actually pays for, while "sinking fund" was a borrowing from older British accounting language that owners increasingly didn't recognise.

The rename did not change the fund's mechanics, its tax treatment, or the obligations attached to it. NSW schemes that had a sinking fund on 29 November 2016 had a capital works fund on 30 November 2016: same balance, same purpose, different label.

In practice, ten years on, plenty of NSW owners still call it the sinking fund. Many strata managers and brokers also use the older term. Either is technically wrong only at the margin; both refer to the same statutory fund.

Victoria: a fund inside a plan

Victoria approaches the long-term reserve differently. Under the Owners Corporations Act 2006, owners corporations of a particular size or fee threshold (currently Tier 1 and Tier 2 schemes, broadly schemes with more than 50 or 100 lots, or with annual fees above defined amounts) must prepare a maintenance plan covering the building's anticipated long-term works. The fund that sits behind the plan is the maintenance plan fund.

The Victorian framework is more flexible than NSW's in one important respect: smaller schemes (Tier 3, Tier 4, Tier 5) are not required to maintain a formal long-term fund at all, although they remain obliged to "adequately maintain" common property. In practice, many smaller Victorian schemes operate without a dedicated long-term reserve, which works fine until something major needs replacing.

Victoria's review of the Owners Corporations Act, delivered in late 2025, may strengthen the long-term planning regime for smaller schemes. The reform direction is consistent with what NSW has already done with the standard-form 10-year capital works plan.

Queensland, SA, TAS, ACT, NT: the persistent sinking fund

The "sinking fund" label persists in five jurisdictions. The legislation differs in detail (Queensland's Body Corporate and Community Management Act 1997 requires a sinking fund forecast covering at least nine years; South Australia, Tasmania, the ACT and the Northern Territory each have their own framework), but the underlying concept is the same.

Queensland's regime is the most sophisticated of the five. The BCCM Act mandates a sinking fund forecast for most schemes, and a body corporate that does not raise contributions consistent with its forecast is leaving an obvious paper trail of underfunding. The Commissioner for BCCM has investigated cases where chronic underfunding has produced predictable special levies.

In ACT and NT, the sinking fund framework is broadly similar to Queensland's, with somewhat lighter forecasting requirements. South Australia and Tasmania have lighter framework still, closer to Victoria's smaller-scheme approach, where the obligation is to "adequately maintain" rather than to maintain a particular fund balance against a particular plan.

Western Australia: the reserve fund

Western Australia uses reserve fund as the standard term. The Strata Titles Act 1985, as substantially amended in 2018, requires schemes of 10 or more lots to maintain a 10-year reserve fund plan. The 10-year horizon aligns with NSW and Victoria; the 10-lot threshold is more generous than Victoria's tier-based system.

The 2018 WA amendments brought the regime into broad parity with eastern-state equivalents, although the language remained distinctive. WA's transitional period for the 10-year plan obligation completes in 2026.

Why the names actually matter (a little)

For most practical purposes, the name doesn't matter; what matters is whether the fund has the money it needs.

But the labels matter at the margins:

When reading documents from another state. A NSW resident buying in Brisbane needs to know that "sinking fund" is what they would call the capital works fund at home.
When the building changes terminology. NSW schemes that have been operating since before 2016 may have older documents using "sinking fund" and newer documents using "capital works fund". They are the same fund.
When comparing schemes interstate. A capital works fund balance in NSW and a sinking fund balance in Queensland are directly comparable when measured against the building's long-term plan and asset base.
When buying, selling or contesting a strata report. Strata reports prepared by interstate search companies sometimes adopt the originating state's vocabulary. The reader needs to be able to translate.

For a complete cross-jurisdictional terminology reference covering legal entities, committees, levies, by-laws and disclosure documents:

What every long-term fund actually pays for

Whatever your state calls it, the fund covers the same broad category of expenditure: major capital works that come around irregularly and at significant cost.

Common items across most schemes include external repainting (every 10–15 years for most apartment buildings), roof replacement or major repair (20–30 years), lift modernisation or replacement (20–25 years per lift), waterproofing remediation (15–25 years, varies sharply by build quality), façade and concrete spalling repairs (varies), common-area floor coverings (10–15 years), pool resurfacing and plant replacement (10–15 years), fire system upgrades (15–25 years), pump and mechanical plant replacement (15–25 years), and major electrical or plumbing infrastructure renewal (30–50 years).

A 50-lot building's total capital works expenditure across a decade can comfortably exceed $1 million depending on age, complexity, and whether any single major item (cladding remediation being the obvious one) falls within the planning horizon.

NSW's 2026 standard form

NSW has gone furthest in formalising long-term planning. From 1 April 2026, NSW schemes preparing a new, revised, or replacement 10-year capital works plan must use the prescribed standard form. The standard form aligns the document structure, the categories of expenditure, the disclosure of inflation assumptions, and the methodology for calculating recommended contributions.

The reform's practical effect is to make capital works plans comparable across schemes for the first time. A buyer doing due diligence on two NSW buildings in 2027 will be comparing plans drafted in the same format, instead of two different consultants' bespoke documents that were structurally hard to compare. It also gives NSW Fair Trading a baseline against which inadequate plans can be identified.

Other states are watching this reform closely. The standard form is an obvious candidate for adoption in Victoria's review and in Queensland's anticipated next round of body corporate reforms, although neither has committed.

How to assess your fund: the labels-aside version

The honest test of fund adequacy is jurisdiction-agnostic.

Compare the fund's current balance to its 10-year forward expenditure. A healthy fund typically holds 18–36 months of forward-looking annual contributions plus a buffer for the next major scheduled item. The exact ratio depends on the building's age and the timing of upcoming works.

Compare the recommended annual contribution to the actual annual contribution. This is the single most diagnostic number. A fund where the actual contribution is materially below the recommended contribution is, by mathematical certainty, accumulating a future shortfall. The shortfall will eventually be paid for through a special levy, deferred maintenance, or a strata loan. None are pleasant.

Look at recent special levies. A scheme that has raised one or more special levies in the past five years is signalling that ordinary contributions have been inadequate. A scheme that has raised several is signalling something more systematic.

Check the inflation assumption in the plan. A plan based on 2% annual cost inflation will significantly underestimate real costs over a 10-year horizon, given that Australian construction inflation has averaged 4–6% since 2022. A plan that doesn't disclose its inflation assumption is itself a warning sign.

Cross-check against the 10-year plan vintage. A plan that hasn't been updated in five or more years reflects old prices, old building condition, and old assumptions. Plans should be reviewed every five years at minimum, and after any significant change in the building's condition.

For a deeper guide to reading the plan itself:

Why the fund affects your apartment's value

A long-term reserve fund that is well-managed against a credible plan is one of the most valuable invisible assets in an apartment building. A buyer's solicitor or conveyancer reads the fund's balance and trajectory in the strata report, and a chronically underfunded fund (under any name) translates directly into a lower offer or a withdrawn buyer.

For sellers in particular, the fund's adequacy can swing tens of thousands of dollars in achievable sale price. Buildings that have run their long-term contributions disciplined for years sell faster and at higher prices than equivalent buildings that have kept levies artificially low.

How UnitBuddy handles the multi-state fund picture

UnitBuddy's capital works module ingests the building's plan in whatever name the legislation gives it: capital works fund (NSW), maintenance plan fund (VIC), sinking fund (QLD/SA/TAS/ACT/NT), or reserve fund (WA). It surfaces the same diagnostic numbers regardless: current balance, projected trajectory, recommended versus actual contribution, the gap between the plan and what the building is actually saving.

For committee members serving on schemes in multiple states, or for owners with apartments across more than one jurisdiction, the multi-state view means one tool covers all the funds rather than a separate document set per building per state.

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Sinking Fund vs Capital Works Fund: How Strata Terminology Differs Across Australia