HMO vs PPO Health Plans: Which Costs Less in 2026?

How the two plans compare

On the defaults — $8,000 of medical bills in a year — the HMO costs $7,000.00 in total ($4,200.00 of premium + $2,800.00 of cost-share) and the PPO costs $9,000.00 ($6,600.00 of premium + $2,400.00 of cost-share), so the HMO wins by $2,000.00. The HMO’s premium is $2,400.00 a year less than the PPO’s, and that beats the PPO’s $400.00 advantage on cost-share. The rule is simple: you pay the bills up to the deductible, then coinsurance on the rest, and the out-of-pocket max caps what you pay — the premium is paid whether or not you see a doctor.

The worked example, line by line

Setup: $8,000 of bills; HMO $350/mo, $1,500 deductible, 20% coinsurance, $6,000 out-of-pocket max; PPO $550/mo, $1,000 deductible, 20% coinsurance, $5,000 out-of-pocket max.

Line 1 — the HMO premium. $350.00 × 12 = $4,200.00 a year.

Line 2 — the HMO cost-share. You pay the first $1,500.00 of the $8,000.00 in bills (the deductible), then 20% of the remaining $6,500.00, which is $1,300.00 — $1,500.00 + $1,300.00 = $2,800.00.

Line 3 — the HMO total. $4,200.00 + $2,800.00 = $7,000.00.

Line 4 — the PPO premium. $550.00 × 12 = $6,600.00 a year.

Line 5 — the PPO cost-share. You pay the first $1,000.00 of the bills (the deductible), then 20% of the remaining $7,000.00, which is $1,400.00 — $1,000.00 + $1,400.00 = $2,400.00.

Line 6 — the PPO total and the winner. $6,600.00 + $2,400.00 = $9,000.00. The HMO wins by $2,000.00 — its $2,400.00 premium advantage beats the PPO’s $400.00 cost-share advantage. Rounding convention: totals are computed from unrounded values, so rounded parts may differ by a cent from their rounded sum.

Every branch, checked

Bills $2,000: HMO $5,800.00, PPO $7,800.00, HMO wins by $2,000.00. With small bills the cost-share is small for both plans, so the premium gap ($2,400.00) decides it.

Bills $20,000: HMO $9,400.00, PPO $11,400.00, HMO wins by $2,000.00. Neither plan has hit its out-of-pocket max yet, so the same $2,000.00 gap holds.

Bills $50,000: HMO $10,200.00, PPO $11,600.00, HMO wins by $1,400.00. Both plans hit their out-of-pocket maximums ($6,000.00 and $5,000.00), so the gap shrinks to the premium gap minus the max gap.

HMO premium $600/mo: HMO $10,000.00, PPO $9,000.00, PPO wins by $1,000.00. Raising the HMO premium by $250.00 a month ($3,000.00 a year) flips the winner — the premium is the lever that matters most here.

PPO premium $400/mo: HMO $7,000.00, PPO $7,200.00, HMO wins by $200.00. A cheaper PPO nearly closes the gap, but the HMO still wins by $200.00.

Bills $0: HMO $4,200.00, PPO $6,600.00, HMO wins by $2,400.00. With no care at all there is no cost-share — the comparison is premiums only, and the HMO wins by the full $2,400.00 premium gap.

The reverses, worked backwards

Bills at which the HMO hits its out-of-pocket max: $24,000 — at $24,000 of bills the HMO cost-share is $6,000.00 ($1,500 deductible + 20% of $22,500). At $23,999 the cost-share is $5,999.80. The star is DOLLARS (bills).

Bills at which the PPO hits its out-of-pocket max: $21,000 — at $21,000 of bills the PPO cost-share is $5,000.00 ($1,000 deductible + 20% of $20,000). At $20,999 the cost-share is $4,999.80. The star is DOLLARS (bills).

HMO monthly premium at which the plans tie: exact $516.6667/mo (non-terminating — no cent value ties exactly). Displayed $516.67 → HMO total $9,000.04 (PPO wins by $0.04); $516.66 → HMO total $8,999.92 (HMO wins by $0.08). The star is DOLLARS/MONTH.

PPO monthly premium at which the plans tie: exact $383.3333/mo (non-terminating — no cent value ties exactly). Displayed $383.33 → PPO total $6,999.96 (PPO wins by $0.04); $383.34 → PPO total $7,000.08 (HMO wins by $0.08). The star is DOLLARS/MONTH.

HMO coinsurance at which the plans tie: exact 50.7692% (non-terminating — no cent value ties exactly). Displayed 50.77% → HMO total $9,000.05 (PPO wins by $0.05); 50.76% → HMO total $8,999.40 (HMO wins by $0.60). The star is a PERCENT.

HMO deductible at which the plans tie: $4,000 — the HMO cost-share is $4,800.00 ($4,000 deductible + 20% of $4,000) and the HMO total is $9,000.00, a TRUE TIE. At $3,999 the HMO total is $8,999.20 (HMO wins by $0.80). The star is DOLLARS (deductible).

What the defaults assume

The model treats all care as subject to the deductible then coinsurance — copays, out-of-network care, negotiated discounts and prescription tiers are NOT included; premiums are paid whether or not you see a doctor; the comparison window is one year; network size, referrals and whether your doctor is in-network are NOT costed — an HMO that wins on price can still be the wrong plan if your doctor is out of network. At $100,000 of bills both plans are capped at their out-of-pocket maximums: HMO $10,200.00, PPO $11,600.00, HMO wins by $1,400.00. With an HMO premium of $0 the HMO total is $2,800.00 and the HMO wins by $6,200.00. At 0% coinsurance for both plans the HMO total is $5,700.00 and the PPO total is $7,600.00 (HMO wins by $1,900.00) — with no coinsurance you only pay the deductible. At 100% coinsurance for both plans the HMO total is $10,200.00 and the PPO total is $11,600.00 (HMO wins by $1,400.00) — both capped. With the HMO out-of-pocket max equal to its deductible ($1,500) the HMO cost-share is $1,500.00, the HMO total is $5,700.00, and the HMO wins by $3,300.00. Rounding convention: totals are computed from unrounded values, so rounded parts may differ by a cent from their rounded sum; the reverses are smallest-value solutions, and the exact ties ($516.6667/mo, $383.3333/mo, 50.7692%, $4,000) are stated wherever the rounded figures appear.

Output · formula · meaning

Who uses this

• The worker choosing between two employer plans: they learn the HMO costs $7,000.00 a year on $8,000 of bills against the PPO’s $9,000.00 — and they check the $516.67/mo reverse to see how much the HMO premium could rise before the tie.
• The healthy enrollee who rarely sees a doctor: they learn that at $0 of bills the comparison is premiums only — HMO $4,200.00, PPO $6,600.00 — and they check the $2,000 branch to see how little the gap moves with small bills.
• The enrollee expecting a big year of care: they learn that at $50,000 of bills both plans hit their out-of-pocket maximums — HMO $10,200.00, PPO $11,600.00 — and they check the $24,000 and $21,000 reverses to see where the caps kick in.
• The enrollee whose doctor is out of network: they learn the HMO wins by $2,000.00 on price — and they read the caveat that network size and referrals are NOT costed, so a cheaper HMO can still be the wrong plan.

Accuracy & limitations

The math is first-principles: the annual premium is 12 times the monthly premium, the cost-share is the bills up to the deductible plus coinsurance on the rest, capped at the out-of-pocket max, and the total is premium plus cost-share — every figure is rounded to cents half-up, and the tie reverses state the exact non-terminating values ($516.6667/mo, $383.3333/mo, 50.7692%) with both displayed neighbours and the winner on each side. What the model cannot do is price YOUR care: it treats all care as subject to the deductible then coinsurance, but real plans charge copays for office visits, tier prescriptions differently, negotiate discounts off the billed amount, and pay out-of-network care at a different rate or not at all — none of that is in the comparison. It also does not cost network size, referrals, or whether your doctor is in-network. Use it to compare the price structure, then check the network before you enrol.

Frequently asked questions