Declining Pacific Commercial Insurance Rates Conceal Underinsurance Threats

In the first quarter of 2026, commercial insurance premiums across the Pacific region experienced a sharp 12 per cent decline, yielding the most advantageous renewal climate for policyholders in recent years. Nevertheless, industry experts at Marsh caution that these discounted premiums disguise a severe underinsurance vulnerability. As asset replacement and reconstruction costs continue to escalate rapidly, they are fundamentally outpacing these downward market adjustments.

Inflationary Pressures and Soaring Construction Costs

Despite the softening of insurance premiums, foundational economic inflation remains stubbornly high across primary regional markets:

• Australia: Consumer Price Index (CPI) inflation reached 4.6 per cent in the year ending March 2026, before cooling slightly to 4.0 per cent in May. Concurrently, the Reserve Bank of Australia’s preferred core metric—the trimmed mean—unexpectedly climbed to 3.6 per cent.

• New Zealand: Annual CPI inflation registered at 3.1 per cent through March 2026, lingering above the central bank’s mandated target threshold.

• Construction Sector: Rebuilding expenses are anticipated to spike by 6 per cent by mid-2026. This surge is propelled by persistent labor deficits, chronic supply chain bottlenecks, and steep increases in raw material pricing.

Specific building materials are experiencing extreme price volatility. Plastic piping costs have surged by up to 36 per cent, alongside relentless upward pressure on concrete, cement, sand, copper, and electrical supplies. Furthermore, geopolitical tensions in the Middle East, particularly shipping blockages in the Strait of Hormuz, are sustaining high global freight and fuel costs. This heavily impacts the construction industry, where over 75 per cent of heavy machinery operates on diesel.

Business Interruption and the “Average Clause” Penalty

Beyond the undervaluation of physical properties, outdated business interruption (BI) indemnity limits—often calculated two to three years prior—are proving grossly inadequate for accommodating today’s protracted repair schedules and supply chain delays.

Illustrative Impact: If a commercial property insured for $10 million suffers $5 million in damage, but an assessment reveals its actual replacement cost is $20 million, the asset is deemed 50 per cent underinsured. By applying the average clause, the insurer halves the payout to just $2.5 million, forcing the policyholder to absorb the massive financial shortfall.

To proactively manage these critical exposures, risk advisory professionals urge corporations to mandate certified asset valuations every two to three years and comprehensively review their business interruption indemnity periods on an annual basis.