Private Health Insurance: What to Know Before You Choose

What Is Private Health Insurance? A Quick Overview

Private health insurance is a contract between you and an insurance company. You pay a monthly fee (premium), and in return, the insurer agrees to pay for some or all of your medical costs, as defined in the policy.

What it typically covers:

• Doctor visits (primary care and specialists)

• Hospital stays and surgeries

• Prescription medications

• Diagnostic tests (X‑rays, MRIs)

• Mental health services

• Physical therapy

• Maternity and newborn care

What it usually does not cover:

• Cosmetic procedures

• Experimental treatments

• Services already covered by a public plan (in the UK and Canada, private insurance excludes publicly insured services)

• Out‑of‑network care (or covers it at a much lower rate)

The exact coverage depends on the policy, the country, and the insurer.

Why Private Health Insurance Matters Differently in the US, UK, and Canada

The role of private insurance varies dramatically across the three countries. Understanding your local context is the first step to choosing wisely.

United States – Private Insurance as Primary Coverage

In the US, there is no universal public health insurance for all adults. Most people under 65 get coverage through an employer, but those who are self‑employed, unemployed, or don’t have access to employer plans must buy individual private insurance on the Affordable Care Act (ACA) marketplaces (also called exchanges) or directly from insurers.

For Americans over 65, Medicare (a federal program) is primary, but many buy private Medicare Advantage (Part C) or Medigap (supplemental) plans to add benefits or reduce out‑of‑pocket costs.

Key fact for 2026: The enhanced premium tax credits that lowered ACA marketplace premiums expired on January 1, 2026. As a result, average monthly premiums for a benchmark silver plan rose to $625, and the share of enrollees receiving subsidies dropped from 92% to 87%. Open enrollment for 2026 coverage closed on January 15, 2026. The next window for 2027 coverage opens November 1, 2026.

United Kingdom – Private Insurance as a Supplement to the NHS

The National Health Service (NHS) provides comprehensive, tax‑funded healthcare to all UK residents. Most services—GP visits, hospital care, emergency treatment—are free at the point of use.

Why buy private insurance then? To access:

• Shorter waiting times for elective surgeries and specialist consultations

• Choice of hospital and consultant (rather than being assigned)

• Private hospital rooms and amenities

• Coverage for treatments the NHS may limit (e.g., certain cancer drugs)

Private insurance does not replace the NHS. It is supplementary. You remain entitled to NHS care.

Cost range: £50–£300 per month, depending on age, health, and coverage level. Policies typically do not cover pre‑existing conditions, GP visits, A&E (emergency) care, or chronic disease management (which remains with the NHS).

Canada – Private Insurance as a Supplement to Provincial Plans

Each Canadian province and territory runs its own public health insurance plan (e.g., OHIP in Ontario, MSP in British Columbia). These plans cover medically necessary hospital and physician services. Prescription drugs, dental care, vision care, physiotherapy, psychotherapy, and ambulance services are not universally covered.

Why buy private insurance? To cover:

• Prescription medications (mandatory for most working Canadians who do not have employer coverage)

• Dental and vision care

• Physiotherapy, chiropractic, massage therapy

• Private hospital rooms

• Psychotherapy and counselling

Most Canadians receive private coverage through employer group plans. Individual plans are available but can be expensive and may exclude pre‑existing conditions.

Hidden risk: If you move between provinces, your public coverage continues, but your private plan may not. Always check portability.

Step 1: Understand the True Cost of a Plan – Not Just the Premium

The single biggest mistake people make is choosing a plan based only on the monthly premium. The premium is just the entry fee. You also need to understand:

• Deductible – The amount you pay out‑of‑pocket before insurance starts paying. In the US, ACA bronze plans have deductibles as high as $10,600 for an individual.

• Copayment (copay) – A fixed dollar amount per service (e.g., $40 for a specialist visit).

• Coinsurance – A percentage you pay after meeting the deductible (e.g., 20% of a hospital bill).

• Out‑of‑pocket maximum – The most you will pay in a year. Once you hit this, insurance covers 100% of allowed costs.

How to estimate your total annual cost:

1. Write down your expected healthcare for the coming year: doctor visits, prescriptions, planned surgeries, therapy sessions.

2. For each plan you are considering, calculate:
   (Monthly premium × 12) + (deductible) + (expected copays and coinsurance)

3. Compare the totals, not just the premiums.

Example:

• Plan A: $300/month premium, $7,000 deductible, 20% coinsurance. If you have a $20,000 surgery, you pay $7,000 + 20% of the remaining $13,000 ($2,600) = $9,600 plus premiums.

• Plan B: $500/month premium, $2,000 deductible, 20% coinsurance. Same surgery: $2,000 + 20% of $18,000 ($3,600) = $5,600 plus premiums.
  Even though Plan B’s premium is higher, your total cost for a high‑use year may be lower.

Step 2: Check the Provider Network

Your plan’s network is the list of doctors, hospitals, labs, and other providers who have agreed to accept the insurer’s negotiated rates. Going outside the network usually means paying much more—or the entire bill.

Network Types (US focus, but applicable elsewhere)

Before you enroll:

• Call your current doctor’s office and ask: “Do you accept [plan name] for new and existing patients?” Online directories are often outdated.

• If you have a chronic condition or planned surgery, verify that your specialist and hospital are in‑network.

• Ask about emergency care: Under the ACA, out‑of‑network emergency rooms must be covered at in‑network cost‑sharing levels, but some plans still try to bill extra. Get a written answer.

For UK and Canadian readers

• UK: Private insurers have “approved hospital lists.” Your policy may only cover treatment at certain private hospitals. Check that your preferred hospital is on the list.

• Canada: Most private plans have networks for dental, vision, and paramedical services (e.g., physiotherapy). If you have a regular provider, verify they are in‑network.

Step 3: Review Prescription Drug Coverage (The Formulary)

If you take any regular medication—even a generic—you must check the plan’s formulary (the list of covered drugs).

How formularies work:
Drugs are placed into tiers. Lower‑tier drugs (generics) have the smallest copays. Higher‑tier drugs (specialty, brand) have larger copays or coinsurance.

What to look for:

• Is each of your medications on the formulary?

• What tier is it? (Tier 1 = cheapest, Tier 4/5 = most expensive)

• Are there prior authorization requirements? (Your doctor must get approval before the plan will cover the drug.)

• Is there step therapy? (You must try a cheaper drug first.)

If your drug is not on the formulary: You can request a formulary exception. The process takes weeks and is not guaranteed. For essential medications, choose a plan that already covers them.

Money‑saving tip: Many plans offer a mail‑order pharmacy option for 90‑day supplies of maintenance medications—often at a lower copay than retail.

Step 4: Know What Is Covered – And What Is Not

All ACA‑compliant US individual plans cover essential health benefits: emergency services, hospitalization, maternity, mental health, prescription drugs, rehab, preventive care, and pediatric services (including dental and vision for children).

Common exclusions or limits:

• Adult dental and vision – Usually separate policies or add‑ons.

• Cosmetic surgery – Never covered.

• Out‑of‑network non‑emergency care – Often not covered at all in HMO/EPO plans.

• Experimental or investigational treatments – Rarely covered.

• Weight loss surgery – May require specific criteria and prior authorization.

For UK readers: Private policies do not cover GP visits, A&E (emergency room), chronic disease management (e.g., long‑term diabetes care), or pre‑existing conditions (unless you have a moratorium or fully underwritten policy). Read your policy’s “exclusions” section carefully.

For Canadian readers: Private plans typically exclude services already covered by your provincial plan (e.g., physician visits, hospital stays). They focus on drugs, dental, vision, and paramedical services.

Step 5: How to Prepare Before Open Enrollment (US) or Before Buying (UK/Canada)

You will not have time to research thoroughly during a rushed enrollment period. Start months ahead.

A Practical Preparation Plan

If you already have insurance:

• Request your Summary of Benefits and Coverage (SBC) or policy document. Note any claims that were denied or surprise bills from the past year. These reveal gaps in your current plan.

If you are uninsured:

• Keep a log of your healthcare use for 2–3 months: doctor visits, prescriptions, lab tests. This log will help you estimate your needs for the coming year.

Gather your information:

• List all your doctors (primary care, specialists, therapists, dentists).

• List all your prescription medications with dosages.

• Note any planned surgeries, pregnancies, or major treatments.

For US residents:

• Check if you qualify for premium tax credits or cost‑sharing reductions on the ACA marketplace. Even with the 2026 changes, many people still receive subsidies. Use the healthcare.gov calculator.

• If you are eligible for employer coverage, compare it to marketplace plans before assuming employer insurance is better. Sometimes individual plans with subsidies are more affordable.

For UK residents:

• Compare policies from providers like Bupa, AXA Health, Vitality, and Aviva. Use comparison sites, but read the fine print—cheaper policies often have more exclusions.

• Consider a moratorium underwriting policy (covers pre‑existing conditions that have been symptom‑free for 2–5 years) vs. fully underwritten (medical history assessed upfront). Fully underwritten policies have fewer surprises at claim time.

For Canadian residents:

• Check if your employer offers group benefits. Group plans are almost always cheaper and have fewer exclusions than individual plans.

• If you are buying individually, be prepared for medical underwriting (health questions). You may be declined or charged higher premiums for pre‑existing conditions.

The Week Before You Enroll (US) or Buy (UK/Canada)

Set aside two hours to compare plans methodically.

1. Write down your maximum budget for total annual health costs (premiums + expected out‑of‑pocket).

2. Decide your network preference. Are you willing to change doctors to save money, or must you keep your current providers?

3. Shortlist 3–5 plans using your country’s comparison tool.

   • US: healthcare.gov or state marketplace.

   • UK: MoneySuperMarket, Compare the Market, or direct insurer sites.

   • Canada: Best to contact an independent insurance broker (they are free to you).

4. Call each plan’s member services with your specific questions:

   • “Is Dr. [Name] in your network?”

   • “Are my medications [list] on your formulary? What tier?”

   • “What is the prior authorization process for [your specific medication]?”

   • “What is the average wait time for a new patient appointment with a primary care doctor in my area?”

   • “For UK/CA: Does this policy cover [specific service, e.g., physiotherapy] and are there session limits?”

5. Use a total cost calculator if available. Many insurers and brokers offer online tools that estimate your annual cost based on your expected usage.

Uncommon tip: Check the deductible for prescription drugs separately from the medical deductible. Some US plans have a separate drug deductible, meaning you pay full price for meds even after meeting your medical deductible.

Checklist: 10 Questions to Answer Before You Choose

1. What is the total annual cost (premiums + expected out‑of‑pocket) for each plan?

2. Are my preferred doctors and hospital in the plan’s network?

3. Is each of my regular prescription drugs on the formulary, and at what tier?

4. Does the plan have prior authorization or step therapy requirements for my medications?

5. What is the out‑of‑pocket maximum – the most I could pay in a single year?

6. Does the plan cover the specific services I need (e.g., mental health, physical therapy, maternity)?

7. For US readers: Am I eligible for a premium tax credit or cost‑sharing reduction?

8. For UK readers: What are the waiting times for private specialist appointments under this policy?

9. For Canadian readers: Does this plan coordinate with my provincial health plan, or will I have duplicate coverage?

10. What is the insurer’s reputation for claims processing and customer service? (Check recent reviews.)

Frequently Asked Questions

1. I rarely go to the doctor. Should I just buy the cheapest plan?

Possibly, but with caution. The cheapest plan (e.g., US bronze or catastrophic) has a very high deductible. If you have an unexpected accident or sudden illness, you could be responsible for thousands of dollars before coverage kicks in. Many people find a middle‑tier plan (US silver) offers a better balance: premiums are higher, but out‑of‑pocket costs are more manageable when something unexpected happens.

2. What is the difference between a premium and a deductible?

Your premium is the monthly fee you pay to keep the policy active. Your deductible is the amount you must pay for covered services before the insurance company starts paying its share. Think of the premium as a subscription fee and the deductible as your initial spending each year.

3. How do I find out if a plan covers my prescription drugs?

Request the plan’s formulary (drug list) before enrolling. Search for your medications by name and dosage. If a drug is not listed, you can request a formulary exception, but the process can take weeks. It is safer to choose a plan that already covers your essential medications.

4. If my doctor is not in‑network, can I still see them?

In an HMO or EPO, you generally cannot see an out‑of‑network doctor except in a true emergency. In a PPO, you can, but you will pay more (higher copays and coinsurance, and the out‑of‑network deductible may be separate and higher). Do not assume you can get a “network gap exception” – those are rarely granted.

5. What documents should I keep after I enroll?

Once you enroll, save your Evidence of Coverage (EOC) or Certificate of Insurance (COI), the Summary of Benefits and Coverage (SBC) (US), the formulary, and the provider directory. You will need these if there is a dispute about what is covered or what you owe.

When to Seek Professional Advice

While many people can choose a plan on their own, you should talk to a licensed insurance professional if:

• You have a complex medical history or a chronic condition requiring expensive medications.

• You are self‑employed (US) and need to weigh premium tax credits against plan features.

• Your doctor is out‑of‑network on every plan you can afford, and you need help finding a network gap exception or appealing.

• You do not understand the difference between plan types (HMO vs. PPO vs. POS) and how they affect your ability to see specialists.

• You are a Canadian buying an individual plan – brokers can help you navigate medical underwriting and find the best value.

Smart questions to ask a broker or navigator:

• “Based on my expected healthcare use, which plan type is most cost‑efficient for me?”

• “Which plans in my area have the broadest provider networks?”

• “For US: How many plan members typically receive a denied prior authorization for [your specific condition]?”

• “For UK: What is the insurer’s track record on paying claims for pre‑existing conditions after the moratorium period?”

In the US, navigators are free and trained to help you compare ACA marketplace plans. Independent brokers can show you plans from multiple insurers, including plans sold off‑marketplace. In the UK and Canada, insurance brokers are also free to you (they earn commission from the insurer).

Myth vs. Fact: Private Health Insurance

The Bottom Line – Honest and Human

Choosing private health insurance is one of the most important financial and health decisions you will make. You do not need to become an insurance expert, but you do need to check four things: the total yearly cost, the provider network, the prescription drug formulary, and the out‑of‑pocket maximum.

Start now – not during a stressful enrollment rush. Make your doctor and pharmacy lists. Estimate your expected care. Then, when it is time to choose, you will be ready to compare apples to apples, not just monthly premiums.

Good insurance does not have to be perfect. It just has to be the right fit for you – your health, your budget, and your peace of mind.

Written by: Ibrahim Abdo, Health Content Specialist and Evidence-Based Medical Writer focused on translating complex health information into clear, trustworthy, and reader-friendly insights.

Medically reviewed by: A qualified healthcare professional.