Business-Interruption Waiting-Period Calculator
Cyber business-interruption cover does not start when the outage does — it starts after a waiting period (often 8–12 hours), and it stops at the end of the period of restoration. Two companies with the same BI limit recover very differently depending on how long their outage ran. Enter your terms and see the covered window and the hours you eat. Transparent arithmetic on your numbers; not insurance advice.
What this calculator does
- Cyber business-interruption cover starts after a waiting period (often 8–12 hours), not when the outage begins, and ends at the period-of-restoration cap.
- Enter your waiting period, outage duration, hourly loss rate and restoration cap to see the covered window, the hours you absorb, and the covered vs uncovered loss.
- If your outage is shorter than the waiting period, no BI is paid at all — the tool flags that.
- Transparent arithmetic on your own numbers; not insurance advice.
Why this matters
Business interruption is where a cyber claim most often disappoints. Buyers see a BI limit and assume a multi-day ransomware outage is covered, but the waiting period quietly removes the first hours and the period-of-restoration cap removes the tail — and if the outage is short enough, nothing is paid at all. For a business that loses heavily per hour of downtime, those carved-off hours can be the bulk of the loss.
This calculator makes the covered window concrete against your own numbers, so you can decide whether to negotiate a shorter waiting period or invest in faster recovery. It is a transparent model, not insurance advice; confirm the definitions with your broker.
Frequently asked questions
What is a business-interruption waiting period in cyber insurance?
It is the number of hours an outage must last before business-interruption (BI) cover begins — a time-based deductible. Common values are 8, 10 or 12 hours. If your outage is shorter than the waiting period, you typically recover nothing for BI; if it is longer, only the hours beyond the waiting period count. It exists so insurers are not paying for every brief blip, but it means a highly downtime-sensitive business can suffer a real loss and still fall under the threshold. Confirm your policy’s exact hours and how it measures them (continuous vs aggregate).
What is the period of restoration?
The period of restoration is the window during which BI loss is covered — it starts after the waiting period and runs until systems are (or reasonably should be) restored, up to a cap (often expressed in days, sometimes with an extended "period of indemnity" for lingering loss of custom). Losses after the cap are yours. Together, the waiting period sets when cover starts and the restoration cap sets when it ends, so both ends of a long outage can be uncovered even when the middle is paid.
How do I reduce my business-interruption exposure?
Two levers: operationally, invest in recovery speed (tested, immutable backups and a rehearsed recovery runbook) so outages stay short and well inside the period of restoration; and on the policy, negotiate a shorter waiting period and an adequate restoration cap if your business loses a lot per hour of downtime. Model your hourly loss rate honestly — including lost transactions, idle staff and reputational fallout — because that number, times the uncovered hours, is what you self-fund.
Are these figures real?
No — every input is one you provide, and the tool only does transparent arithmetic on your numbers to show how the waiting period and restoration cap carve up your outage. It asserts no market values. It is an educational model, not insurance advice; confirm your policy’s definitions and how it measures the waiting period and period of restoration with your broker.
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