Strata Levy Impact on Borrowing Capacity 2026: How Levies Reduce Australian Mortgage Affordability

Introduction

Strata levies have become a central, non-discretionary line item in Australian household budgets, yet their influence on mortgage serviceability remains widely underestimated. As of early 2025, approximately 2.9 million Australians live in strata-titled properties, a figure projected to exceed 3.5 million by 2027 (City Futures Research Centre, “Australian Strata Data Report” 2024). For mortgage applicants, a strata levy is not a trivial outlay; lenders treat it as an unavoidable ongoing commitment that directly reduces net serviceable income. Under the Australian Prudential Regulation Authority’s (APRA) serviceability assessment framework, every dollar of recurring strata fees reduces borrowing capacity by a multiple of that dollar—an effect amplified by the 3.0 per cent serviceability buffer still in force through 2026. This article examines the mechanics, the regulatory overlay and the levy trajectory that will shape borrowing power for apartment and townhouse purchasers throughout 2026. It does not offer personal financial advice.

How Lenders Treat Strata Levies in Serviceability Calculations

Authorised deposit-taking institutions (ADIs) classify strata levies as an unavoidable housing expense, alongside council rates, utilities and home insurance. In a full-expense verification model, lenders add the applicant’s disclosed or documented strata levy to the Household Expenditure Measure (HEM) or the declared cost of living—whichever is higher—before calculating surplus income available to service a mortgage.

APRA’s Prudential Practice Guide APG 223 “Residential Mortgage Lending” requires ADIs to “make reasonable inquiries and take reasonable steps to verify a borrower’s financial situation, including their income and expenses” (APRA, APG 223, para 24, https://www.apra.gov.au/sites/default/files/apg_223_residential_mortgage_lending_january_2020.pdf). Strata levies, as a fixed and verifiable cost, must be captured. Consequently, a borrower with a $1,500 quarterly administration levy and a $500 quarterly capital works levy ($8,000 per annum) will see that full $8,000 deducted from annual after-tax income before the lender computes maximum allowable loan repayments.

The impact is immediate. For an owner-occupier applicant with a combined household income of $160,000 and no other liabilities, a $2,000 reduction in annual net income—caused by a levy increase—reduces pre-tax serviceable income by approximately $2,600 (assuming a marginal tax rate of 32.5 per cent plus 2.0 per cent Medicare levy). That $2,600 flows directly into the assessment rate denominator, producing a non-linear contraction in borrowing capacity.

The Magnifying Effect of APRA’s 3 Per Cent Serviceability Buffer

APRA’s residential mortgage serviceability expectations, last confirmed in a letter to ADIs in August 2023 and unchanged as of mid-2025, impose a minimum assessment rate of 7.0 per cent per annum, or the loan product rate plus a 3.0 percentage point buffer—whichever is greater (APRA, “APRA keeps serviceability buffer at 3 per cent”, 17 August 2023, https://www.apra.gov.au/news-and-publications/apra-keeps-serviceability-buffer-3-per-cent). With standard variable rates for owner-occupier loans sitting between 5.95 per cent and 6.39 per cent in early 2025 (RBA Statistical Table F6, https://www.rba.gov.au/statistics/tables/), a typical applicant is assessed at an interest rate of 9.0–9.4 per cent.

At a 9.0 per cent assessment rate over a 30-year term, the monthly principal-and-interest payment per $1,000 borrowed is $8.05. This factor translates into a borrowing capacity reduction of approximately $124 for each $1 decline in monthly surplus income. A quarterly strata levy increase of $375—equivalent to $125 per month—therefore slashes maximum borrowing power by roughly $15,500 (calculated as $125 ÷ 0.00805). If the assessment rate is 9.5 per cent (product rate 6.39 per cent plus buffer), the factor rises to $8.39 per $1,000, trimming capacity by $119 per dollar of monthly income lost. In either scenario, the 3.0 per cent buffer magnifies every dollar of levy increase by a factor exceeding 100.

The buffer is not a static fixture. APRA’s 2023 letter signalled that the 3.0 per cent setting would be reviewed “when circumstances change.” With the Reserve Bank of Australia having lowered the cash rate to 3.85 per cent in November 2024 and further easings possible in 2025, APRA could elect to reduce the buffer in 2026. Until that occurs, serviceability assessments will remain imposing, and the strata levy drag will endure.

Strata Levy Trends: What Borrowers Can Expect in 2026

State government data and independent research point to a sustained upward trajectory in strata fees. The NSW Government’s Strata Hub, a statutory registry of all strata schemes in New South Wales, released aggregate data in 2025 showing that the median total quarterly strata levy across 83,000 registered schemes was $1,370 in the December 2024 quarter—up 4.8 per cent from $1,307 in the prior corresponding period (NSW Government, “Strata Hub open data”, accessed 30 April 2025, https://www.nsw.gov.au/housing-and-property/strata). That median comprises an administration fund component of $1,010 and a capital works fund levy of $360.

The City Futures Research Centre’s 2024 Australian Strata Data Report, funded by the NSW Government, projected annualised levy growth of 4.5–6.0 per cent per annum for high-density metropolitan schemes through to 2028 (see report summary at https://cityfutures.ada.unsw.edu.au/strata/). Drivers include:

• Insurance premium escalation: The Insurance Council of Australia has reported that body corporate insurance premiums for strata schemes rose by an average of 22 per cent in 2024, driven by climate-related claims and reinsurance cost increases.
• Building defect rectification: The Design and Building Practitioners Act 2020 (NSW) and its retrospective liability provisions have prompted a wave of audits and remediation programs, often funded through special levies. The Office of the NSW Building Commissioner noted that 39 per cent of registered class 2 buildings inspected in 2024 had serious defects requiring rectification, with a median allocated cost of $1.2 million per building—sums that flow directly into capital works levies.
• Compliance and safety upgrades: New fire safety standards, electrical safety upgrades and mandatory cladding replacement continue to impose additional recurrent costs.

For a typical two-bedroom unit in the Sydney metropolitan area, a total annual strata levy of $5,480 (four quarters at $1,370) in 2025 is therefore likely to reach $5,750–$5,900 in 2026, with a real possibility of exceeding $6,200 if a special levy is struck. Lenders will capture these increases in full when processing applications lodged after the levy determination.

Quantifying the Impact: A Worked Scenario

To demonstrate the borrowing capacity erosion, consider a first-home buyer couple with a gross annual household income of $150,000, no dependants, no credit card debt and a declared (and verified) monthly after-tax living expense of $4,800, inclusive of HEM. The couple is seeking a 30-year principal-and-interest loan with a product rate of 6.19 per cent, assessed at an APRA serviceability rate of 9.19 per cent. Current quarterly strata levy: $1,200 ($400 per month). Projected levy from July 2026: $1,580 ($527 per month), an increase of $127 per month.

Step 1: Compute monthly after-tax surplus before levy change

• Gross annual income: $150,000
• Tax and Medicare levy (2024–25 rates): approximately $37,967
• After-tax annual income: $112,033
• Monthly after-tax income: $9,336
• Less all expenses (declared $4,800 + original strata $400): $5,200
• Monthly surplus: $4,136

Step 2: Derive maximum borrowing capacity (original levy)

• Assessment rate factor (30 years, 9.19%): monthly payment per $1,000 borrowed is $8.22 (calculated as PMT(9.19%/12,360,1,0,0)*1000). Approximate factor: 0.00822.
• Maximum borrowing capacity: $4,136 ÷ 0.00822 = $503,000 (rounded).

Step 3: Recalculate with higher 2026 levy

• Monthly expense: $4,800 + $527 = $5,327
• New monthly surplus: $9,336 – $5,327 = $4,009
• Maximum borrowing capacity: $4,009 ÷ 0.00822 = $487,700

The $127 monthly levy increase has reduced borrowing capacity by $15,300, or 3.04 per cent. For a borrower targeting a $500,000 property with a 10 per cent deposit, that reduction eliminates the option unless additional deposit funds are contributed. The same arithmetic applied to a single-income household on $90,000 gross yields a $9,200 reduction, potentially disqualifying the applicant entirely from the entry-level market segment where strata properties are concentrated.

Navigating Borrowing Capacity in a Rising Levy Environment

Australian mortgage borrowers cannot control strata levies, but they can take steps to present the strongest possible serviceability profile. Lenders vary in their treatment of strata components. Some ADIs will exclude a capital works levy from ongoing expenses if it is held in a separately managed sinking fund and can be demonstrated to be fully funded for the scheduled works. A detailed strata report, prepared by a qualified service and obtained during the conveyancing process, is critical documentation. It identifies not only current levy amounts but also any scheduled special levies or known defect rectification requirements that could trigger future cost increases. Obtaining a strata report at least 21 days before unconditional exchange allows the applicant to reassess borrowing limits.

Applicants with existing offset accounts can improve net serviceability by directing surplus savings into a 100 per cent offset facility attached to a variable-rate home loan. Because the offset balance reduces the interest applied on the loan but does not reduce the assessed principal amount, some lenders will accept the offset arrangement as an expense buffer, effectively lowering the net-per-month deficit attributed to strata increases. The Australian Securities and Investments Commission’s MoneySmart serviceability calculator (https://moneysmart.gov.au/home-loans/mortgage-calculator) implicitly captures this dynamic by reducing the effective assessment burden when net savings are high, though the underlying APRA buffer remains in place.

Brokers may recommend approaching a non-bank lender or a mutual ADI that applies a slightly different expense floor, but such strategies carry their own risk and cost dimensions. Borrowers should also monitor APRA’s buffer settings closely; any reduction in the serviceability buffer during 2026 would have an immediate, offsetting effect on capacity. However, a buffer reduction does not eliminate the underlying expense, and no borrower should assume that a regulatory change will arrive in time to solve an individual affordability gap. The only lasting hedge is a conservative assessment of levy escalation at the point of purchase.

Conclusion

Strata levies are a fixed, verifiable, non-discretionary cost that lenders will always subtract from serviceable income. Under current APRA rules, the 3.0 per cent serviceability buffer ensures that even a modest levy increase of $30–$40 per week can erase $15,000–$25,000 of borrowing capacity for a typical apartment buyer. NSW Government data and independent research indicate that levies will continue to rise at a rate exceeding general inflation through 2026, propelled by insurance, defect rectification and compliance obligations. Prospective purchasers of strata-titled properties in 2026 should request a current levy notice and a detailed strata report, factor the documented increase trajectory into their borrowing estimate, and assume that the full amount of every levy dollar will be deducted from their serviceability calculation. Information only, not personal financial advice. Consult a licensed mortgage broker.