HDHP+HSA vs PPO Calculator (2026)

HDHP (High-Deductible Health Plan). A health plan with a higher annual deductible than typical PPO/HMO offerings. The IRS 2026 minimum is $1,700 self-only / $3,400 family — anything below isn't HSA-qualified. You pay 100% of medical costs up to that deductible, then a coinsurance share (typically 20%) until you hit the plan's out-of-pocket maximum (IRS cap: $8,500 self / $17,000 family). In exchange for taking on more deductible exposure, the premium is usually $50-$200/month lower than a comparable PPO. No copays — every dollar runs through the deductible-then-coinsurance math.

HSA (Health Savings Account). A separate account tied to the HDHP. You contribute up to the IRS annual limit; your employer can contribute too, with the combined total capped at the same limit. 2026 limits: $4,400 self-only / $8,750 family + $1,000 catch-up at age 55+. Money in the HSA earns interest (or dividends, if invested). Withdrawals for qualified medical expenses are tax-free. Unused balance rolls over forever — no use-it-or-lose-it. The HSA stays with you when you change jobs.

The triple tax advantage — what it actually means. First leg: contributions are pretax via payroll (Section 125 cafeteria plan) or above-the-line on Schedule 1 Line 13 if personal. Either way, federal income tax avoided. Pretax payroll also escapes FICA (7.65% additional savings), which personal contributions do not. Second leg: invested HSA funds grow tax-free — no annual dividend or capital gains tax. Third leg: qualified medical withdrawals are tax-free. At 22% federal + FICA + state, every $1,000 contributed is worth $300-$400 of immediate tax savings. Compounded across decades, the savings dwarf almost any other tax-advantaged vehicle.

PPO (Preferred Provider Organization). Higher premium, lower deductible, and copays from day 1. Visit your primary care doctor — $20-$40 copay. See a specialist — $40-$80. ER visit — $200-$500. Procedures and Rx still go through the deductible + coinsurance, but routine care has predictable per-visit costs that count toward your out-of-pocket max. PPOs typically have broader provider networks. The structural cost: PPO premiums are paid with after-tax dollars — there's no equivalent of the HSA waiting on the side.

Section 199A is for businesses; HSA is for individuals. Both are tax-advantaged structures that reward the people who actually file the right forms. The HSA contribution is the biggest single tax-deductible move available to W-2 employees who don't own a business. At a 24% bracket plus 7.65% FICA plus 5% state, the effective discount on a $4,400 family contribution can hit 36-37% — about $1,600 in tax savings, paid for free if your employer also kicks in.

Why HDHP usually wins for healthy filers. The premium gap between HDHP and PPO is real money — typically $1,200-$2,400/year. If you don't use much medical care (and statistically, most adults under 50 don't), you keep the premium difference. The HSA layer adds $1,000-$3,500 in tax savings depending on your bracket. Add an employer HSA match of $500-$1,500 and the case becomes overwhelming. The structural risk is a major medical event before you've built up an HSA buffer.

Why PPO usually wins for chronic conditions and major events. PPO's predictable copays cap your downside on frequent visits and routine prescriptions. If you have 6+ specialist visits a year plus high-cost Rx, PPO copays often beat HDHP coinsurance. PPO's lower OOP max also caps catastrophic exposure tighter than HDHP — you may hit the cap earlier and save on the back end of a high-cost year.

Compliance traps that disqualify HSA contributions. Three big ones. (1) General-purpose FSA enrollment — yours or your spouse's — disqualifies HSA contributions for the year. Limited-Purpose FSA (dental/vision only) is fine. (2) Medicare enrollment (Part A or B) ends HSA contribution eligibility immediately, though existing balances remain usable. (3) Tax-dependent status — if you're claimed on someone else's return, no HSA contributions. The calculator surfaces all three.

OBBBA 2026 permanence. The One Big Beautiful Bill Act (P.L. 119-21, July 2025) made permanent the pre-deductible coverage of telehealth services for HDHP plans. Telehealth visits don't count against the HSA-eligibility math — your HDHP can cover televisits at $0 copay before deductible without compromising the plan's HSA-qualified status. Useful for routine consults that would otherwise pull from the HSA balance.