# Coinsurance

*Insurance — Finicade finance glossary*

Coinsurance is the percentage of a bill you pay after meeting the deductible — 20% coinsurance means the insurer covers 80%. Unlike a copay it scales with the cost, so a serious hospital stay can produce a very large share before the out-of-pocket maximum stops it. In property insurance the word means something different: a clause penalising you for insuring a building for less than a set fraction of its value.

**Also known as:** co-insurance, cost sharing percentage

**Related terms:** [Copay](https://finicade.com/glossary/copay), [Deductible](https://finicade.com/glossary/deductible), [Out-of-Pocket Maximum](https://finicade.com/glossary/out-of-pocket-maximum), [Health Insurance](https://finicade.com/glossary/health-insurance), [Policy Limit](https://finicade.com/glossary/policy-limit)

Source: https://finicade.com/glossary/coinsurance