Insurance Float
The pool of policyholders' money an insurer holds between premium-in and claim-out — effectively free money to invest, the CASA-analogue.
Why you care
An insurer collects premium now and pays claims later. In that gap, it's holding a large pile of other people's money — the float — and it gets to invest it. This is the second profit engine, and in Indian general insurance it's often the one that actually makes the money.
Run the numbers
Say an insurer holds ₹150 cr of float — reserves against claims not yet paid (illustrative). Invested at ~8%, that's ₹12 cr of income a year, earned on money that isn't even its own. That ₹12 cr is what turns a −₹5 cr underwriting loss into a net profit.
Where this goes
The float is exactly what gets invested, so it flows straight into investment income — the return on the pool. What the float physically is on the balance sheet is the technical reserves, the money legally parked against future claims.
Why you care
The insurance float is the money an insurer holds at any given time that ultimately belongs to policyholders — premium collected but not yet paid out as claims. Because there is always a gap between when premium comes in and when claims go out, the insurer is permanently sitting on a large pool of other people's money. It gets to invest that pool for its own account until the claims fall due.
This is the second of an insurer's two profit engines, and it is the one outsiders most often miss. Underwriting is the visible business — sell cover, pay claims. But underneath it, the insurer runs what is effectively a low-cost investment fund, financed by policyholders. The closest banking parallel is CASA: cheap, sticky funding that costs almost nothing and can be put to work. The float's cost is not an interest rate; it is the underwriting result. If the insurer breaks even on underwriting, the float is genuinely free money. If it runs an underwriting loss, the float has a small "cost" equal to that loss, but as long as the investment return beats it, the insurer still comes out ahead. This is precisely why so much of Indian general insurance can run combined ratios above 100% and still be profitable.
Run the numbers
The insurer has built up ₹150 crore of float — the accumulated technical reserves it holds against claims that have been incurred or will be, but aren't yet paid. It invests that ₹150 crore conservatively, mostly in government and high-grade corporate bonds, and earns roughly 8%:
| Amount | |
|---|---|
| Investable float | ₹150 cr |
| Investment yield | ~8% |
| Investment income | ≈₹12 cr |
Now bolt this onto the underwriting side. The core engine ran a −₹5 crore underwriting result (a 105% combined ratio on ₹100 crore of premium). The float engine just earned +₹12 crore. Net them and the insurer is +₹7 crore before tax (illustrative) — profitable overall, despite losing money on the actual insurance. The float is the reason "does the insurer make money?" and "is the underwriting any good?" are two different questions. A reader who only watches premium growth, or only the combined ratio, sees half the business.
Where this goes
The float feeds investment income directly — the return earned on the pool is the second engine's whole output. On the balance sheet, the float is not a separate line; it is the technical reserves, the money legally set aside against future claims. That link matters because it means the size of the float is driven by how much the insurer must reserve. And the same reserves that create the float also drive how much regulatory capital it must hold. The float is where insurance quietly becomes an investment business.