There are many factors that affect health insurance premiums. Regarding individual plans, monthly rates change based on whether you are eligible for a subsidy or not, and these subsidies vary based on household size and income. Regardless of eligibility, non-subsidized health insurance premiums have increased drastically in recent years. Reasons for the rise in health insurance premiums include the cost of health care in the US, changes in ACA provisions, fewer companies and plan options, the rising cost of prescription drugs, an increase in chronic illnesses, and many more. Most of these factors are out of your control so it is important to seek an experienced professional to discuss your health insurance plan options and what will best fit your needs and budget.