Choosing a deductible on business liability insurance: break-even arithmetic

A higher deductible makes sense when the premium saving each year is larger than the extra deductible you expect to pay on claims. Divide the annual saving (including GST if you cannot claim input tax credit) by the extra deductible per claim: the result is the number of claims per year at which the two options cost the same. If you expect fewer claims than that, the higher deductible is cheaper on average; if more, the lower one is. Never choose a deductible your business could not pay several times in one year without strain, and check whether it applies per claim, per accident or as an annual aggregate.

This guide is part of the liability insurance buying checklist. Figures are illustrative. Choose the deductible together with the limit; see choosing the limit of indemnity.

How deductibles work on Indian liability policies

Term	What it means	Effect
Deductible per claim	You bear the first part of each claim	Many small claims add up
Deductible per accident or occurrence	One deductible for all claims from one event	Better for events with many claimants
Percentage deductible	A percentage of the claim, sometimes with a minimum and maximum	Common in some product and pollution sections
Aggregate deductible	Once your deductibles in a year reach a total, the insurer pays in full	Rare for small businesses, useful for high-frequency risks
Separate deductible for defence costs	Deductible applies to legal costs too	Check whether costs erode it

Most small-business policies use a fixed rupee deductible per claim or per accident. Read the schedule: one policy can have different deductibles for property damage, injury and products.

Worked example: break-even claim frequency

A restaurant chain with four outlets is offered two otherwise identical public liability quotes:

	Option 1	Option 2
Deductible per claim	₹10,000	₹50,000
Premium before GST	₹46,000	₹38,000
GST at 18%	₹8,280	₹6,840
Total	₹54,280	₹44,840

Step 1: annual saving

If the restaurant claims input tax credit: saving = ₹46,000 − ₹38,000 = ₹8,000
If it cannot: saving = ₹54,280 − ₹44,840 = ₹9,440

Restaurants supplying at the 5% rate without credit cannot usually claim input tax credit, so use ₹9,440 here. (Check your own GST position.)

Step 2: extra deductible per claim

₹50,000 − ₹10,000 = ₹40,000 for any claim of ₹50,000 or more. For a smaller claim, say ₹25,000, the extra cost is ₹25,000 − ₹10,000 = ₹15,000, because under Option 2 you pay the whole claim.

Step 3: break-even

For claims above ₹50,000: ₹9,440 ÷ ₹40,000 = 0.236 claims a year, about one claim every four years.

If the chain expects about one such claim every five years or less often, Option 2 is cheaper on average.
If it has a claim most years, Option 1 is cheaper and smoother.

Step 4: check affordability

What if three customers are injured in separate incidents in one year? Under Option 2, the business pays up to 3 × ₹50,000 = ₹1,50,000 in deductibles. Under Option 1, ₹30,000. If ₹1.5 lakh in one year would hurt cash flow, the lower deductible is the safer choice even if the average arithmetic favours the higher one.

Small claims you might pay anyway

Many businesses settle minor complaints directly, for example by paying a customer's doctor's bill or replacing a damaged phone, to preserve goodwill. If you would rarely claim small amounts from the insurer anyway, a higher deductible costs you little in practice. But tell the insurer about any incident that might grow: settling or admitting liability without consent can breach the policy conditions.

Using the comparison tool

In the liability quote comparison tool, enter both options with their totals including GST, their deductibles and limits. Try claim amounts of ₹25,000, ₹75,000 and ₹5 lakh:

Claim	Option 1 total	Option 2 total	Cheaper
None	₹54,280	₹44,840	Option 2
₹25,000	₹64,280	₹69,840	Option 1
₹75,000	₹64,280	₹94,840	Option 1
₹5,00,000	₹64,280	₹94,840	Option 1

One claim in the year makes Option 1 cheaper; no claims makes Option 2 cheaper. The break-even frequency decides which matters more for you.

Deductibles and contracts

Some clients and landlords set a maximum deductible in their contracts, for example "deductible not exceeding ₹1 lakh", because a large deductible could mean their claim against you is not met if your business cannot pay. Check contracts before increasing the deductible. See insurance clauses in contracts and tenders.

Decision checklist

Find the deductible type: per claim, per accident, percentage or aggregate
Calculate the annual saving with and without GST credit
Estimate realistic claim frequency from your last five years
Calculate break-even frequency: saving ÷ extra deductible
Test a bad year with several claims
Check contract maximums
Record the decision for next renewal

Frequently asked questions

Does the deductible apply to defence costs?

It depends on the wording. Some policies apply the deductible to compensation only; others to the combined total of compensation and costs.

Can I change the deductible at renewal?

Yes. Ask for quotes at two or three deductibles each renewal and repeat the break-even calculation.

Does a higher deductible affect how claims are handled?

The insurer still handles claims above the deductible. For claims below it, you may handle them yourself, but report them if the policy requires notification of all incidents.

Is a deductible the same as a co-payment?

Not exactly. A deductible is a fixed amount or percentage you bear first; some wordings also have a co-insurance share above the deductible. Check both.

Sources

IRDAI — policyholder protection rules on policy documents and claims
CBIC GST portal — input tax credit conditions
Council for Insurance Ombudsmen — complaints about deductions applied to claims, for eligible policyholders