2.2 Washington Commercial Property Insurance

Rate Regulation: File-and-Use

Washington regulates commercial property rates under a file-and-use system administered by the Office of the Insurance Commissioner (OIC). The insurer files its rates and supporting actuarial data; the rates may be used as soon as they are filed, without waiting for affirmative approval. The OIC then reviews and may disapprove rates that fail the statutory standard. Distinguish this from a prior-approval state, where rates cannot be used until the regulator signs off — a frequent exam distractor.

Every rate must satisfy three tests:

TRIA Terrorism Disclosure

The federal Terrorism Risk Insurance Act (TRIA) is a government backstop for losses from certified acts of terrorism. On commercial property and most commercial-lines policies, the insurer must offer terrorism coverage and provide a written disclosure showing:

• The premium charged for terrorism coverage
• The federal share of compensation under the program
• The program's annual cap (the federal backstop does not pay losses above the statutory aggregate)
• The policyholder's right to accept or reject the coverage

The insured may decline terrorism coverage in writing. Trap: the insurer must offer it, but the insured is not required to buy it — acceptance is voluntary on the buyer's side.

Commercial FAIR Plan access

The Washington FAIR Plan is not limited to homes — it also writes commercial property for habitational, mercantile, and small-business risks the voluntary market declines. Commercial FAIR Plan policies provide basic fire and extended-coverage perils on building and business personal property, support higher limits than the residential program, and still require evidence of voluntary-market declination. As with the homeowners version, liability is not included, so a business placing property through the FAIR Plan must arrange a separate general-liability policy.

This is a frequent placement for vacant buildings, older mixed-use structures, and properties in wildfire-exposed eastern Washington.

Surplus Lines Insurance

When a risk cannot be placed with an admitted (licensed) Washington insurer, a surplus-line broker may export it to an eligible non-admitted insurer. This is the path for unusual, high-hazard, or high-limit commercial risks. The Surplus Line Association of Washington stamps filings and administers fees.

Why guaranty-fund status matters

If an admitted insurer becomes insolvent, the Washington Insurance Guaranty Association pays covered claims up to statutory limits. A non-admitted (surplus lines) insurer is outside that protection — the broker's required disclosure exists precisely so the insured understands this trade-off. Some pre-approved "export list" risks may skip the diligent-search step because the OIC has already determined the admitted market will not write them.

Business Income (Interruption) Coverage

Business income (BI) replaces net income plus continuing normal operating expenses the business would have earned had no covered physical-loss event shut it down. The key timing concept is the period of restoration — it begins after any waiting period and ends when the property is or should reasonably be repaired, not when revenue fully recovers.

A waiting period (often 72 hours) acts as a time deductible before BI begins.

Coinsurance and the business income worksheet

Business income is usually written subject to a coinsurance percentage (commonly 50%, 60%, 70%, or 80%) applied to the 12-month projected income figure. If the insured selects a limit below the required percentage, the coinsurance penalty reduces every loss payment proportionally. Worked example: required limit is $1,000,000 at 80% coinsurance, but the insured carries $640,000 and suffers a $300,000 loss. The recovery is ($640,000 / $800,000) × $300,000 = $240,000, leaving the insured to absorb $60,000.

Buyers who dislike coinsurance can use the Business Income Agreed Value or monthly limit of indemnity options to suspend the penalty.

Inland marine

Inland marine rounds out commercial property for mobile or hard-to-schedule property that a fixed-location form handles poorly:

These exposures move or are difficult to value at a single address, so inland marine forms follow the property rather than the location. Producers should confirm whether the inland marine policy is written on a scheduled basis (each item listed) or a blanket basis (a single limit over a class of property), because that choice drives how a loss is valued and whether newly acquired property is automatically covered.