Quick Answer
Estimate total healthcare costs by adding: annual premiums + expected out-of-pocket costs + employer contributions (as negative). For a $75,000 earner, a high-deductible plan might cost $4,200 total vs. $5,800 for a PPO, despite the PPO having lower premiums. Include deductibles, copays, and prescription costs in your calculation.
Best Answer
Marcus Rivera, Compensation & Benefits Analyst
Best for employees comparing health plans during open enrollment
The total cost formula for health plan comparison
Most people choose health plans based on monthly premiums alone — a costly mistake. Your total annual healthcare cost includes:
Total Annual Cost = Premiums + Deductible + Expected Medical Expenses - Employer Contributions
According to the Kaiser Family Foundation, the average worker pays $1,401 annually in premiums for single coverage, but total out-of-pocket costs average $4,000-$6,000 when including deductibles and copays.
Step-by-step calculation method
Step 1: Calculate annual premiums
Multiply your monthly premium by 12. Remember, this is post-tax dollars if you're not using a Section 125 plan, or pre-tax if your employer offers premium deductions.
Step 2: Estimate your medical usage
Review last year's Explanation of Benefits (EOB) statements or estimate:
Step 3: Apply plan structure
For each plan option, calculate how your estimated usage would be covered:
Real example: Comparing three plans
Employee profile: $75,000 salary, moderate health usage ($3,000 estimated annual costs)
Plan A - High Deductible Health Plan (HDHP)
Plan B - PPO
Plan C - HMO
Key factors that affect your calculation
What you should do
Create a spreadsheet comparing each plan's total cost using your specific medical usage pattern. Don't forget to factor in the tax advantages of HSAs (triple tax benefit) or pre-tax premium deductions.
Use our paycheck calculator to see how different premium amounts affect your take-home pay, especially if you're comparing pre-tax vs. post-tax premium options.
Key takeaway: The plan with the lowest premium often costs $1,000-$3,000 more annually when you include deductibles and out-of-pocket expenses. Calculate total costs, not just premiums.
*Sources: [IRS Publication 969](https://www.irs.gov/pub/irs-pdf/p969.pdf), Kaiser Family Foundation Employer Health Benefits Survey*
Key Takeaway: The plan with the lowest premium often costs $1,000-$3,000 more annually when you include deductibles and out-of-pocket expenses. Calculate total costs, not just premiums.
Sample total cost comparison for $75,000 earner with moderate health usage ($3,000 annual medical needs)
| Plan Type | Monthly Premium | Annual Premium | Deductible | Expected Out-of-Pocket | Employer Contribution | Total Annual Cost |
|---|---|---|---|---|---|---|
| HDHP + HSA | $120 | $1,440 | $3,000 | $3,000 | -$1,000 | $3,440 |
| PPO | $280 | $3,360 | $1,500 | $1,980 | $0 | $5,340 |
| HMO | $200 | $2,400 | $500 | $650 | $0 | $3,050 |
More Perspectives
Marcus Rivera, Compensation & Benefits Analyst
Best for families with children evaluating family health plan options
Family health plan cost considerations
Family health plans require more complex calculations because you're covering multiple people with different health needs. Family premiums average $6,000-$12,000 annually according to Kaiser Family Foundation data.
Family-specific factors to include:
Family deductible structures
Most family plans have two deductible limits:
Once any individual hits their limit OR the family hits the family limit, benefits kick in. This can significantly affect your cost calculations.
Example calculation for family of four:
Don't forget to factor in employer HSA contributions (often $1,000-$2,000 for families) which can make the high-deductible option significantly cheaper.
Key takeaway: Family plans require calculating individual vs. family deductible scenarios and factoring in predictable pediatric care costs throughout the year.
Key Takeaway: Family plans require calculating individual vs. family deductible scenarios and factoring in predictable pediatric care costs throughout the year.
Marcus Rivera, Compensation & Benefits Analyst
Best for employees with ongoing medical expenses who need predictable costs
Chronic condition cost planning
With chronic conditions, your healthcare costs are more predictable but potentially much higher. You'll likely hit out-of-pocket maximums, making this the key number for plan comparison.
Focus on out-of-pocket maximums:
Medication cost analysis
Prescription drugs often drive total costs for chronic conditions. Check each plan's formulary (drug list) for your specific medications:
Real example with diabetes:
Cash flow vs. total cost
Even if a high-deductible plan costs less annually, consider cash flow. You might pay $500/month out-of-pocket early in the year vs. steady $50 copays. Plan accordingly with emergency funds or healthcare credit options.
Key takeaway: With chronic conditions, focus on out-of-pocket maximums and medication formularies rather than just deductibles — total annual costs are more predictable but cash flow timing varies significantly between plans.
Key Takeaway: With chronic conditions, focus on out-of-pocket maximums and medication formularies rather than just deductibles — total annual costs are more predictable but cash flow timing varies significantly between plans.
Sources
- IRS Publication 969 — Health Savings Accounts and Other Tax-Favored Health Plans
- Kaiser Family Foundation Employer Health Benefits Survey — Annual survey of employer-sponsored health benefits
Reviewed by Marcus Rivera, Compensation & Benefits Analyst on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.