Top Factors That Affect Health Insurance Premiums

January 16, 2025

business people signing deal with insurance agent

*Updated November 24th, 2025

Health insurance premiums are the regular payments you make to keep your health insurance coverage active. These premium amounts can vary significantly based on a range of factors, from your age and location to the type of plan you choose. This variation occurs because insurance companies consider individual risk factors, regional health care costs, and coverage levels when determining health insurance rates and setting your monthly premium.

Understanding these factors that determine your health insurance premium is essential when shopping for a health insurance plan. Being informed allows you to choose a plan that not only fits your budget but also meets your health needs and helps you get affordable health insurance.

What Are Health Insurance Premiums?

A health insurance premium is the amount you pay—typically monthly—for your health insurance or health plan. This cost ensures you have access to the health care services outlined in your policy, such as doctor visits, hospital stays, and prescription drugs. However, premium costs are just one piece of the larger health care costs puzzle.

To fully understand the financial implications of your health insurance coverage, you need to differentiate premium payments from other expenses:

  • Deductibles: The amount you must pay out of pocket before your insurer starts covering certain services.

  • Co-pays: A fixed fee you pay for specific medical services or prescriptions.

  • Out-of-Pocket Maximums: The maximum amount you’ll pay for covered services in a year, beyond which your insurer pays 100% of covered costs.

By understanding how your premium, deductible, co-pays, and out-of-pocket costs interact, you can better evaluate your overall health costs and choose a health insurance plan that aligns with your financial and medical needs.

Factors That Affect Health Insurance Premiums

Several variables influence how much you’ll pay for health insurance. Knowing these factors affecting your premium can help you understand your bill and, in some cases, lower it.

1. Age

Your age is one of the most significant factors that affect your health insurance premium. Health insurers typically assume that as you grow older, you are more likely to need health care services, which translates to higher medical costs for the insurer. If you’re younger, your health insurance rates are likely to be lower, but they generally increase as you age, especially when you approach retirement. Many insurance companies use age bands to calculate premiums and health risk.

2. Location

Where you live impacts health insurance rates significantly. State regulations, the cost of living, local health care services pricing, and access to providers all play a role. For instance, rural areas with fewer doctors and hospitals might have higher insurance costs due to limited competition, while some plans sold in urban areas may reflect higher local health care costs.

3. Tobacco Use

Using tobacco can significantly affect your premium. Insurance carriers charge higher premiums to individuals who use tobacco because of the increased risk of smoking-related illnesses, such as heart disease and lung conditions. Under the ACA, health insurance policies are allowed to charge tobacco users more than non-tobacco users, which directly affect premiums and total premium costs.

4. Type of Plan and Coverage

Your choice of health plan—whether it’s an HMO, PPO, EPO, or POS—affects your health insurance premium. Plans with broader networks and higher level of coverage tend to have higher premium costs. A Marketplace plan (such as bronze plans or silver plans sold on Healthcare.gov) may offer different types of coverage and health insurance rates than employer-sponsored insurance or private insurance bought directly from insurance companies.

Different types of medical benefits (like mental health, maternity, or dental care add-ons) also influence how much you pay for health insurance each month.

5. Deductibles and Out-of-Pocket Costs

Deductibles and health insurance premiums share an inverse relationship. A health insurance plan with a high deductible—meaning you pay out of pocket more before your health coverage begins—usually has a lower monthly premium. On the other hand, a low-deductible plan will have higher premium costs but offer greater health care coverage from the start. Understanding your comfort with out-of-pocket costs can guide you to the right health insurance plan.

6. Medical History and Pre-existing Conditions

Thanks to the ACA, most health plans must cover you regardless of pre-existing conditions, and plans must not increase your health insurance premium based on your medical history or health status in ACA-compliant plans. However, if you’re looking at short-term private insurance that’s not ACA-compliant, your medical history could affect your premium because those plans may use underwriting.

7. Family Size and Dependents

Adding family members to your health insurance increases your premium. Group health plans and employer health benefits often allow you to enroll a spouse and children, but each insured dependent increases the insurance costs. This is true for both individual health insurance policies on the Marketplace and employer-sponsored insurance.

8. Employment-Based Insurance

Employer-sponsored insurance often has lower health insurance premiums because your employer may subsidize part of the premium. When you enroll in an employer health plan, your share of the premium payments is typically deducted from your paycheck, and the employer covers a portion of the insurance costs.

9. Lifestyle Choices

While insurance companies don’t always directly price in every lifestyle factor, habits such as exercise, diet, and preventative care can influence your long-term health care costs. Many health insurance policies now include wellness benefits that encourage healthier living, which can indirectly help affect your health insurance spending over time by lowering medical bills and potentially keeping future health insurance rates more stable.

10. Risk Factors and Occupation

Your job can also influence premiums and health risk. High-risk occupations—like construction or heavy industrial work—may lead to higher insurance costs because of greater likelihood of injury and higher medical costs.

11. Market Trends and Policy Changes

Health insurance premiums are also affected by broader health care costs, economic conditions, and state regulations. Changes in laws, administrative costs, or new medical technologies can also affect what insurance companies charge. Reports from organizations like Kaiser Family Foundation (Kaiser) often track how health insurance rates shift from year to year.

12. Optional Add-ons and Riders

Additional coverage, such as standalone dental care, vision coverage, or richer prescription drugs benefits, can increase your premium. Enhanced prescription drug costs protection—such as lower copays for expensive medications—may raise premium costs but lower what you pay out of pocket for drug costs and medical bills overall.

How to Lower Your Health Insurance Premiums

Understanding how health insurance premiums are calculated is only half the battle; knowing how to lower them can help you get affordable health insurance without sacrificing essential benefits.

Choose High-Deductible Plans Wisely

High-deductible health insurance plans (HDHPs) often come with lower monthly premium costs, making them attractive for people with lower health costs. However, these plans require you to pay out of pocket more before insurance kicks in.

One way to manage this is by pairing an HDHP with a health savings account (HSA). An HSA lets you use pre-tax health savings to pay medical costs, which can offset higher health deductibles. For some types of coverage, especially if you’re relatively healthy, this combination can be a cost-effective way to pay for health insurance and routine health care services.

Take Advantage of Subsidies or Employer Contributions

If you enroll in a Marketplace plan, you may qualify for a subsidy that lowers your health insurance premium. These subsidies are based on your income and family size and are designed to help you get affordable health insurance by reducing the monthly premium you pay to insurance carriers for plans sold on the Marketplace.

If you have access to employer health benefits, employer contributions can cut your insurance costs substantially. Comparing employer-sponsored insurance with individual health insurance on the Marketplace can help you see which offers the best mix of costs and benefits.

Maintain a Healthy Lifestyle

Staying healthy can indirectly affect your health insurance expenses. Some health insurance policies include wellness programs that reward preventive care, regular checkups, and healthy habits. Preventive health care services can catch issues early, helping you avoid large medical bills and potentially higher health care expenses over time.

Shop Around During Open Enrollment

Premiums vary from one insurer to another, and health insurance rates change each year. During open enrollment, take time to compare different types of health insurance and different insurance carriers. Look at:

  • Premium amounts

  • Deductible levels

  • Out-of-pocket costs

  • Which doctors and hospitals you can receive care from

  • How well the plan covers your health needs and ongoing prescription drugs

Revisiting your options each year lets you reassess your health needs and confirm that your current health insurance plan is still the right health insurance plan for you.

Common Misconceptions About Premiums

It’s easy to misunderstand how health insurance premiums work. Here are a couple of myths that can impact how you pay for health insurance.

Assuming the Cheapest Premium Is Always Best

A low health insurance premium might look like a win, but if it comes with very high deductible levels and limited health care coverage, you may end up paying more overall. You need to balance your premium against likely health care costs and out-of-pocket costs for health care services.

Believing Similar Premiums Mean Similar Coverage

Two plans with similar premium amounts may have very different types of coverage and level of coverage. One may offer better prescription drugs coverage or lower prescription drug costs, while another may have higher drug costs or fewer in-network providers. Always compare costs and benefits, not just the monthly premium.

Conclusion

Health insurance premiums are influenced by a wide range of factors affecting cost—from age, location, and tobacco use to the type of plan, medical costs, and broader health care costs trends. While some of these factors are outside your control, understanding how they affect your health insurance and affect your premium gives you the power to make smarter choices.

Take time to compare health insurance policies, understand your out-of-pocket costs, and explore tools like HSAs, subsidies, and employer contributions. With the right information, you can get affordable health insurance, manage your insurance costs, and choose a health insurance plan that fits both your budget and your health coverage needs.

FAQs

Why do premiums differ so much between states?

Health insurance rates can vary widely by state due to:

  • State regulations and how health insurance policies are regulated

  • Differences in cost of living and cost of health care

  • Local competition among insurance companies and providers

  • Whether many states expanded Medicaid

  • Demographic differences that also affect risk and health care costs

How Does My Income Affect Eligibility for Subsidies?

Under the ACA, your income, household size, and where you enroll determine whether you qualify for a subsidy to reduce your health insurance premium. These subsidies are designed to help you get affordable health insurance by capping how much of your income goes to premium payments for a Marketplace plan. Accurately estimating your income helps ensure the plan will help you balance costs and benefits without surprise tax adjustments later.