Yes, in most states you can, within limits. Federal rules allow insurers to charge older adults (e.g., in their sixties) up to three times the premium they would charge younger adults (e.g., in their early twenties), although states can establish lower limits or a complete prohibition on “age rating.” This federal limit on age rating applies to all individual health insurance policies and those offered by small-employers, whether sold in the Marketplace or outside of the Marketplace.