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Business Interruption Insurance Inside BizPack: What It Actually Covers

·12 min read

Business interruption insurance is the cover that determines whether one bad night closes your business for good. It’s the part of a BizPack most small business owners skim past in their quote, because it sounds abstract — insuring your income rather than your stuff — and because nobody thinks it’ll happen to them.

Then it does.

A kitchen fire three days before Christmas. A burst water main that floods your retail shop and destroys everything at floor level. A severe storm that lifts the roof off your warehouse and makes the building uninhabitable for months. In any of those scenarios, your property cover rebuilds the physical damage. But who pays the rent while you’re closed? Who pays your staff wages, your loan repayments, your supplier accounts? Who replaces the income that stopped the moment the doors shut?

That’s business interruption insurance. It’s the cover most likely to save your business when disaster strikes. It’s also the most under-bought cover by Australian SMEs, the most commonly underinsured, and the one with the most conditions and calculations attached.

This article is a deep dive into how BI works inside BizPack products in the Australian market. What triggers it, what it pays, what it excludes, how indemnity periods work, and why getting your sums right matters more here than anywhere else in your policy.

Business interruption cover doesn’t insure your property. It insures your business’s ability to survive while the property is being fixed. That’s a fundamentally different thing, and it’s worth understanding properly.

The Trigger: What Has to Happen for BI to Kick In

Business interruption insurance only responds when there’s a valid claim under the material damage section of your policy. This is the single most important concept to understand.

Three things must all be true:

  1. Physical damage has occurred to property insured under your policy — your building, contents, or stock.
  2. The damage was caused by an insured event — fire, storm, flood, impact, explosion, malicious damage, theft, or whichever perils your policy covers.
  3. The damage caused an interruption to your business operations — you couldn’t trade, or could only trade at reduced capacity.

If any one of those three elements is missing, BI doesn’t respond.

This means BI won’t cover you for: an economic downturn, a supplier going bust, loss of a major client, reputation damage, your landlord terminating your lease, a pandemic or government-mandated closure (more on that below). BI insurance is for physical damage events. If your business is interrupted for any other reason, you need different insurance — or cash reserves.

BI is not a general business downturn safety net. It’s tied to insured property damage. No damage, no BI claim — no exceptions.

What BI Actually Pays

Once triggered, business interruption cover pays three categories of loss:

Lost Gross Profit

BI replaces the income your business would have earned. The calculation uses your historical trading figures — typically the corresponding period from last year — adjusted for trends. If your cafe turned over $12,000/week with a 60% gross margin and is closed ten weeks, BI covers $72,000 in lost gross profit (less the waiting period).

The insurer compares actual revenue to projected revenue using BAS returns, P&L statements, and bank records. Accurate financial records are essential — if you can’t prove what you were earning, you can’t claim what you lost.

Ongoing Fixed Expenses

Costs that continue regardless of trading: rent, equipment leases, business loan interest, insurance premiums, security, essential utilities. BI pays these during the interruption so you’re not funding them from your own pocket.

Additional Increased Costs of Working

Costs incurred above normal operations to minimise the interruption: temporary premises, hired equipment at short-notice rates, staff overtime to clear backlog, express shipping on replacement stock, advertising to announce your return, and accountant’s fees for preparing the BI claim. These must be reasonable and genuinely reduce the overall loss — if spending $10,000 on a temporary fitout saves $21,000 in lost profit, the insurer typically covers it.

What BI Does NOT Cover

Pandemics and infectious diseases. Since 2020, most Australian policies explicitly exclude pandemic-related losses and government-mandated closures. If another pandemic hits, BI almost certainly won’t respond.

Utility failures without property damage. A grid power outage that closes you for three days isn’t covered under standard BI. Some policies offer limited extensions for utility failure, typically sub-limited to a few thousand dollars.

Cyber attacks. Ransomware that locks your systems and prevents trading requires cyber insurance — standard BI doesn’t cover it. This gap grows more significant as businesses digitise.

Ordinary payroll — unless specifically included. Standard BI covers gross profit, which in insurance definitions typically excludes payroll. Include payroll in your sum insured if you want staff paid during a closure.

Loss of market share. BI covers lost income during the interruption, not customers who found competitors and never returned.

Contractual penalties. Late delivery penalties from client contracts aren’t covered.

Losses beyond the indemnity period. Once the period expires, cover stops — no extensions.

Underinsurance penalties. If your declared BI sum insured is too low, the averaging clause reduces your claim proportionally.

The things BI excludes are often what you’d most want cover for. Read the exclusions. Don’t discover gaps at claim time.

The Indemnity Period: Your BI Clock

The indemnity period is the maximum length of time the insurer will pay BI benefits after a claim. It starts when the physical damage occurs, not when you close the doors — so you can’t delay the claim to extend the clock.

Common indemnity periods in Australian BizPack products:

The premium difference between 12 and 18 months is typically 10-15%. Between 12 and 24 months, perhaps 20-25%. These are modest increases for a meaningful extension of cover.

Why longer matters. It’s not just the physical rebuild. After a major fire or flood, you’re also dealing with council approvals, building permits, trades availability (remember every neighbour might also need a builder), equipment lead times (that custom combi oven? 12 weeks from Germany), restocking inventory, and rebuilding your customer base after months of closure. Twelve months sounds generous until you’re at month 11, still waiting for the joinery, and your BI cover is about to expire.

For most small businesses, 18 months is a worthwhile upgrade from the standard 12. For businesses in flood-prone areas, regional locations, or premises with any complexity, 24 months is worth serious consideration.

Many businesses find the premium step from 12 to 18 months is modest enough to justify the extra breathing room. If you can afford the small increase, an 18-month indemnity period is commonly the safer choice.

The Waiting Period: Your Self-Insured Retention

Most BI policies have a waiting period — a deductible measured in time — before cover kicks in. Typical waiting periods in Australian BizPack products are:

If your policy has a 48-hour waiting period and you’re closed for two weeks, BI covers you for 12 days. If you’re only closed for 3 days, you get 1 day of BI. If you’re closed for 1 day — say, a broken window that boards up overnight — BI doesn’t trigger at all.

For businesses that can’t absorb even a few days of downtime — cafes with perishable stock, retail during peak season — a shorter waiting period is worth the premium differential. For businesses with cash reserves that can cover the first week, the standard 48-hour period is usually fine.

The important detail: the waiting period applies to the start of the interruption, not each separate event. If you’re closed for 14 days straight, you have one 48-hour waiting period, not one per week.

How Insurers Calculate the Loss

BI claims are not simple. They require a forensic look at your business’s financial history and a projection of what you would have earned if the interruption hadn’t happened.

The Standard Method: Gross Profit Basis

Most Australian BizPack BI sections insure on a “gross profit” basis. Gross profit for insurance purposes is defined in the policy wording — it’s typically turnover less direct costs of goods sold (purchases, freight, packaging), but excluding payroll unless payroll is specifically included.

The formula the insurer uses:

BI Payout = (Gross Profit you would have earned) – (Gross Profit you actually earned) + (Additional Increased Costs of Working)

The “would have earned” figure is based on your historical results, adjusted for:

The trends test. If your business was growing at 10% year on year before the loss, the insurer should account for that growth when projecting what you would have earned. If you were in decline, the projection should reflect that too. This is where good financial records matter — you need to demonstrate the trend.

Other circumstances. If there were external factors affecting your business — a road closure reducing foot traffic, a competitor opening nearby, a seasonal uptick from a local event — the insurer considers these when calculating the projected earnings.

Savings in expenses. If you normally spend $2,000 a month on disposable supplies (napkins, cleaning products, takeaway containers) and you’re not buying those while closed, the insurer deducts the saved costs from your BI payout. You’re compensated for lost profit, not for expenses you didn’t incur.

The Averaging Clause

If your BI sum insured is $300,000 but your actual annual gross profit is $600,000, you’re 50% underinsured. The averaging clause lets the insurer reduce any BI claim proportionally — they’d pay 50% even if your actual loss was only $50,000. This is the harshness of averaging: the penalty applies regardless of claim size.

Underinsurance is the silent claim-killer. Your BI sum insured needs to reflect current revenue. Review it every renewal.

Claim Examples

Three scenarios that have played out in Australian small businesses.

Cafe Fire — Melbourne

Sarah’s suburban Melbourne cafe ($600K turnover, 60% gross margin) is gutted by an electrical fire. Closed 11 weeks.

Material damage: $187,000 for kitchen rebuild, equipment, cleaning. BI payout: $98,230 covering lost gross profit ($69K), rent ($16.5K), temporary food trailer ($8K), and accountant’s fees ($4.5K). Her 12-month indemnity period was adequate, but if the rebuild had stretched to 14 months — common with complex kitchens — she’d have run out of cover.

Retail Flood — Lismore

Michael’s gift shop ($400K turnover, 50% margin) is flooded. His policy includes flood cover (he added it after 2022). Closed 14 weeks.

Material damage: $132,000. BI payout: $72,423 covering lost profit ($52K), rent ($11K), storage ($2.5K), and temp market stall ($3K). His 18-month indemnity period gave comfortable headroom. The extra premium over 12 months was roughly $350/year.

Factory Storm — Brisbane

Dave’s manufacturing workshop ($1.2M turnover, 40% margin) loses its roof in a storm. Closed 7 weeks.

Material damage: $245,000. BI payout: $104,286 covering lost profit ($55K), equipment leases ($22K), overtime ($15K), express parts shipping ($6.5K), and accountant’s fees ($5K). His monthly P&L records meant the first advance payment arrived in three weeks — documentation speed matters.

Why BI Is Australia’s Most Under-Bought Cover

Multiple industry surveys and broker reports consistently identify business interruption as the cover Australian SMEs are least likely to buy and most likely to underinsure when they do. Here’s why:

It feels abstract. PL and property cover are tangible — someone gets hurt, you pay. Your building burns down, you rebuild. BI covers the gap between those things and your next dollar of revenue, which feels hypothetical until it isn’t.

The cost seems optional. In many BizPack quotes, BI is presented as an included section with a sum insured you fill in. It doesn’t feel like an active purchase decision the way adding tools cover or increasing a sub-limit does. Many business owners enter the minimum sum insured without thinking, because the quote system requires a number.

Financial records are a barrier. BI claims require proving what you earned. If your books aren’t in order, the idea of tackling a BI claim is intimidating. Some business owners avoid engaging with BI cover because engaging would mean confronting messy financials.

Nobody thinks it’ll happen to them. Property damage severe enough to close your business for months feels like something that happens to other people. Until the fire starts, the flood waters rise, or the storm hits.

The businesses that survive major property damage are the ones with BI cover in place. The ones that don’t typically close within 18 months. It’s not the rebuild cost that kills them — it’s the cashflow gap.

How to Estimate Your BI Sum Insured

Step 1: Calculate your annual gross profit. Turnover minus direct costs (purchases, freight, packaging). Use the definition in your policy’s PDS — it may differ from your accounting definition.

Step 2: Add payroll if you want staff covered. Including payroll means wages continue during an interruption — and retaining trained staff makes reopening much harder if they’ve moved on. Add annual payroll to the gross profit figure.

Step 3: Multiply by your indemnity period. 12-month indemnity = annual gross profit + payroll. 18-month = add 50%. 24-month = double.

Step 4: Add a buffer of 10-20%. Your business might grow. Rebuilds take longer than expected.

Example: $750K turnover, $300K direct costs = $450K gross profit + $250K payroll = $700K base for 12 months. With 20% buffer: $840,000, round to $850,000. Your accountant can refine this. Better slightly overinsured than underinsured — the premium difference is modest; the underinsurance penalty is severe.

Trends test. The insurer adjusts your pre-loss earnings projection for the direction your business was heading — growing at 15% or declining at 5%. This works both ways, so it’s about accuracy, not advantage.

Other circumstances clause. If something unusual was affecting your business (nearby construction, a cancelled major customer, a seasonal event), the insurer can adjust the baseline. Document unusual circumstances as they happen.

Savings clause. Expenses you didn’t incur during the closure — disposable supplies, casual wages not covered — are deducted. You’re compensated for lost profit, not for expenses you avoided.

Mitigation requirement. You must take reasonable steps to minimise the loss. If you could lease temporary space but chose not to, the insurer may only cover you for what the temporary arrangement would have cost.

Claims preparation. Most BI policies cover reasonable accountant’s fees for preparing the claim. A good submission recovers more than it costs. Claim these fees as part of your BI claim.

Post-2022 flood hardening. The 2022 east coast floods triggered billions in BI claims. Insurers tightened terms — flood is now excluded or restricted in many standard policies, especially in known flood zones. Flood-inclusive BI cover typically requires specific request and higher premiums.

Pandemic exclusions are now standard. Pre-2020, pandemics weren’t specifically excluded. Post-2020, they’re universal. BI won’t help if another pandemic hits.

Cyber BI is a growing gap. As businesses digitise, cyber incidents causing business interruption grow more likely. Standard BI doesn’t cover it. Cyber insurance is a separate product worth considering for digitally dependent businesses.

Supply chain BI. Some insurers now offer extensions for interruption caused by damage to a key supplier’s or customer’s premises — called contingent BI. Not standard in BizPacks and usually requires broker negotiation, but relevant if your business depends heavily on a single supplier or customer.

Practical Steps

  1. Know your numbers. Maintain monthly P&L statements. This is your evidence of pre-loss earnings — the single most important document in a BI claim.

  2. Review your BI sum insured annually. As turnover grows, your cover must grow. A sum insured set three years ago is almost certainly too low.

  3. Document your fixed costs. Know exactly what you spend monthly regardless of trading. Rent, leases, subscriptions, insurance, loan payments, security, essential services.

  4. Photograph your premises and equipment. A visual record supports both material damage and BI claims.

  5. Choose your indemnity period carefully. For most businesses, 18 months is worth the small premium increase over 12 months. For complex businesses, go 24 months.

  6. Check the waiting period. If you can’t afford even a few days’ downtime, buy down to 24 hours or zero.

  7. Compare quotes. Use a platform like BizCover to compare BI cover levels, indemnity periods, and waiting period options across insurers. Adjusting your BI sum insured lets you see the premium impact in real time.

BI insurance turns a disaster from a business-ending event into a temporary setback. Get the sums right, keep records clean, and don’t skimp on the indemnity period.

Frequently Asked Questions

Does business interruption cover me if my landlord’s building is damaged?

If your policy includes a denial of access or landlord’s building damage extension, BI may cover you when the building you occupy (but don’t own) is damaged by an insured event, preventing you from accessing your premises. Most BizPack policies include this, but check the wording and any sub-limits. If the landlord simply decides to renovate or terminate your lease, BI doesn’t respond — that’s a commercial risk.

What if I can partially trade during the interruption?

BI covers the reduction in earnings, not just a complete closure. If you can operate at 40% of normal from a temporary location, BI pays the 60% shortfall plus additional costs of the temporary arrangement. You’re expected to minimise the loss where reasonably possible.

How quickly does a BI claim get paid?

BI claims are typically paid progressively — the insurer advances payments as the interruption continues, rather than settling everything at the end. The first advance payment commonly arrives within 2-4 weeks of submitting a properly documented claim. Larger or more complex claims take longer. Having your financial records in order significantly speeds up the process.

Are my staff wages covered under business interruption?

If you included payroll in your declared BI sum insured, yes. If you excluded payroll, no. Including payroll increases your sum insured and premium, but means you can keep paying staff during the closure. Without payroll cover, your staff are likely to find other jobs, making restart after the interruption much harder.

Does BizPack BI cover damage from bushfires?

Yes, provided bushfire is not excluded from your policy. After the 2019-2020 Black Summer, some insurers introduced bushfire exclusions or higher excesses in high-risk postcodes. BI triggered by bushfire damage works the same as any other insured event — the waiting period and indemnity period apply as normal. If you’re in a bushfire-prone area, check your policy wording carefully.

How much more does an 18-month indemnity period cost compared to 12 months?

The premium increase is typically 10-15% to extend from 12 to 18 months, and 20-25% to extend from 12 to 24 months. This varies by insurer and industry. For most small businesses, the additional cost is modest relative to the extra protection — especially considering that a rebuild can easily stretch past 12 months once you factor in approvals, trades availability, and equipment lead times. You can compare premium differences for different indemnity periods through platforms like BizCover to find the right balance for your budget.

Disclosure: Some links on this page are affiliate links. If you click through and purchase a policy, we may earn a commission at no extra cost to you. This does not influence our editorial content. The information in this article is general in nature and does not take into account your individual circumstances. Always read the Product Disclosure Statement (PDS) and target market determination (TMD) before purchasing any insurance product.