A premium is the fixed amount you pay – usually monthly – just to have the health insurance policy active, regardless of whether you use any medical services that month.
A deductible is the amount you pay out of pocket for covered services before your insurance starts contributing, resetting annually on most plans.
A copay is a fixed fee paid at the time of a specific service – like a doctor’s visit – separate from the deductible, and often applies even for plans where the deductible hasn’t been met yet.
Generally, plans with lower monthly premiums come with higher deductibles, and plans with higher premiums come with lower deductibles – it’s a trade-off between predictable monthly cost and cost at the point of care.
Choosing between plan types often comes down to expected healthcare usage: infrequent healthcare users may save more with a lower-premium, higher-deductible plan, while those with ongoing medical needs may come out ahead with a higher-premium, lower-deductible option.