[Last Updated: March 30, 2026]
What happens when the largest health care legislation in over a decade collides with the expiration of billions of dollars in insurance subsidies — all in the same year?
That is exactly the situation unfolding across the United States in 2026, as the One Big Beautiful Bill Act (OBBBA), signed into law on July 4, 2025, begins reshaping Medicaid, ACA marketplace coverage, HSA eligibility, and Medicare drug pricing simultaneously. According to the Congressional Budget Office (CBO), an estimated 10 million Americans could lose health insurance coverage by 2034 as a result of these combined changes — and the financial impact on household budgets is already being felt. For anyone navigating health coverage decisions this year, understanding what changed and how it connects to tax filing is essential — which is exactly why startaxoffice.org is breaking down all seven major shifts below.
The scale of these changes is significant, touching everyone from Medicaid enrollees and marketplace subscribers to Medicare beneficiaries and families using dependent care accounts. Each change carries direct implications not only for monthly premiums and out-of-pocket costs, but also for the 2026 federal tax return.
Key Takeaways
- Enhanced ACA premium tax credits expired on January 1, 2026, raising marketplace premiums by an average of 114% for subsidized enrollees, according to KFF estimates.
- The One Big Beautiful Bill Act introduces Medicaid work requirements, eliminates state expansion incentives, and mandates six-month eligibility reviews — potentially affecting millions of low-income adults.
- All ACA Bronze and Catastrophic marketplace plans are now automatically HSA-eligible under IRS Notice 2026-05, expanding tax-advantaged savings access for roughly 7.3 million enrollees.
- Medicare’s first-ever negotiated drug prices took effect January 1, 2026, covering 10 high-cost medications with discounts ranging from 38% to 79% off list prices.
- The dependent care FSA limit increased from $5,000 to $7,500 per household, and PBM spread pricing is now banned — both changes that can directly reduce costs for working families.
What Changed on January 1, 2026 — and Why It Matters
The 2026 calendar year marks one of the most consequential periods in recent U.S. health policy. Multiple federal provisions took effect simultaneously, creating a ripple effect across insurance markets, government programs, and tax obligations.
The One Big Beautiful Bill Act, Signed Into Law
The OBBBA — formally the One Big Beautiful Bill Act of 2025 (Public Law 119-21) — is a massive budget reconciliation package signed by President Trump on July 4, 2025. The law includes roughly $1 trillion in Medicaid and Children’s Health Insurance Program (CHIP) cuts over the next decade, according to CBO estimates, alongside significant changes to ACA marketplace rules, HSA access, pharmacy benefit manager (PBM) practices, and dependent care accounts.
The reconciliation bill passed the Senate 51-50, requiring the Vice President’s tie-breaking vote. Three Republican senators — Susan Collins (ME), Rand Paul (KY), and Thom Tillis (NC) — voted against it alongside all Democrats.
How These Changes Affect Different Groups of Americans
Not every provision hits every household the same way. Marketplace enrollees face premium spikes from the subsidy expiration, while Medicaid recipients in expansion states will soon encounter new work requirements and more frequent eligibility checks.
Medicare beneficiaries, on the other hand, stand to benefit from the first round of negotiated drug prices — an entirely separate policy track under the Inflation Reduction Act of 2022. Meanwhile, working parents and self-employed individuals gain new savings opportunities through expanded HSA eligibility and a higher dependent care FSA cap. The net effect depends heavily on income level, insurance type, and filing status.
Enhanced ACA Premium Tax Credits Have Expired
Perhaps the single most immediately felt change in 2026 is the expiration of enhanced premium tax credits (PTCs) for Affordable Care Act marketplace plans. These enhanced subsidies, first introduced under the American Rescue Plan Act of 2021 and extended through 2025 by the Inflation Reduction Act, expired on December 31, 2025.
What the Expiration Means for Marketplace Premiums
The basic premium tax credit still exists under the ACA — it has no sunset date. However, the enhanced version, which expanded eligibility to households earning more than 400% of the federal poverty level (FPL) and capped benchmark plan premiums at 8.5% of income, is no longer in effect.
As a result, KFF estimates that marketplace enrollees’ premium contributions increased by an average of 114% — approximately $1,016 more per year. The average monthly gross premium for a benchmark silver plan in 2026 is $625, while the lowest-cost bronze plan averages $456 per month, according to data from the Peterson-KFF Health System Tracker.
The impact extends beyond individual budgets. Insurers raised rates with the expectation that healthier enrollees would drop coverage rather than absorb higher premiums, a dynamic that could further destabilize the individual market risk pool. The CBO projected that a permanent extension of the enhanced credits would have kept an additional 3.8 million people insured through 2035.
Who Gets Hit Hardest — Income Tiers Explained
The financial impact varies dramatically by household income. Under the expired enhanced credits, individuals earning between 100% and 150% of FPL had access to fully subsidized benchmark silver plans — meaning $0 monthly premiums.
Without those enhancements, the same individuals now pay approximately 2% of household income for benchmark coverage. Those earning above 400% of FPL lose eligibility for any premium tax credit entirely — even by a single dollar over the threshold.
| Income Level (% of FPL) | With Enhanced PTC (2025) | Without Enhanced PTC (2026) | Estimated Annual Increase |
|---|---|---|---|
| 100%–150% FPL | $0/month (fully subsidized) | ~2% of income | $325–$420/year |
| 150%–250% FPL | Reduced premium (2%–6% of income) | 3.14%–9.96% of income | Significant increase varies by state |
| 250%–400% FPL | Capped at 8.5% of income | Up to 9.96% of income | $200–$300/month for families |
| Above 400% FPL | Eligible (capped at 8.5%) | No subsidy — full premium | $8,400+/year for some families |
Source: KFF, Peterson-KFF Health System Tracker, Congressional Research Service. Figures are estimates as of January 2026 and subject to change based on legislative developments.
For a detailed breakdown of strategies to manage these costs, the startaxoffice.org guide on ACA premium strategies for 2026 covers several legitimate approaches.
Worth noting, the House passed a three-year extension of the enhanced credits in late 2025 — but as of March 2026, the measure remains under Senate consideration with no guaranteed timeline.
Medicaid Is Getting a Major Overhaul
The OBBBA delivers the most sweeping changes to the Medicaid program in over a decade. The CBO estimates that the law will reduce federal Medicaid and CHIP spending by approximately $1.02 trillion over the 2025–2034 period.
New Work Requirements and Community Engagement Rules
Starting no later than January 1, 2027, states must require most Medicaid expansion enrollees aged 19 to 64 to complete at least 80 hours per month of “community engagement” — which can include employment, education, job training, or volunteer work — to maintain eligibility.
This is the largest single driver of Medicaid savings in the bill, accounting for approximately $326 billion of the total cuts according to CBO estimates. Exemptions exist for parents or caretakers of children under 13, disabled veterans, individuals who are medically frail, those with substance use disorders or disabling mental health conditions, and pregnant individuals.
States have until January 1, 2027, to implement these requirements — with the option to request a one-time extension of up to two years if they can demonstrate good-faith progress toward compliance. The OBBBA allocates $200 million to help states with implementation.
Six-Month Eligibility Reviews Replace Annual Renewals
Under existing law, Medicaid eligibility redeterminations occur every 12 months. The OBBBA shortens this cycle to every six months for all expansion enrollees, effective December 31, 2026.
This means more frequent paperwork, income verification, and address checks — a change that critics warn could lead to coverage gaps for eligible individuals who fail to complete required documentation on time. Research from the Urban Institute suggests that roughly three in 10 young adults (ages 18–24) insured through Medicaid could be vulnerable to losing coverage under these combined provisions.
States Losing the Expansion Incentive
The American Rescue Plan Act of 2021 offered a powerful financial incentive for states to expand Medicaid: a two-year, five-percentage-point increase in the Federal Medical Assistance Percentage (FMAP) for all non-expansion Medicaid populations. That incentive was successful — Oklahoma, Missouri, South Dakota, and North Carolina all expanded coverage between 2021 and 2023.
The OBBBA eliminates this enhanced FMAP incentive, effective in 2026. According to the RAND Corporation, state Medicaid budgets across the country will be reduced by an estimated $665 billion over the 2025–2034 period as a combined result of OBBBA provisions. States that relied heavily on state-directed payments and provider taxes — including California, New York, Arizona, Iowa, and Nevada — face the steepest reductions.
HSA Eligibility Just Expanded for Millions
In a move that directly connects health coverage decisions to tax planning, the OBBBA significantly expanded access to Health Savings Accounts (HSAs) starting January 1, 2026.
Bronze and Catastrophic Plans Are Now HSA-Compatible
Previously, only health plans meeting strict IRS high-deductible health plan (HDHP) design requirements — including specific minimum deductible thresholds and out-of-pocket maximums — qualified for HSA pairing. Most ACA Bronze and Catastrophic plans did not meet these criteria, even though they carried high deductibles.
Under IRS Notice 2026-05, all Bronze and Catastrophic marketplace plans are now automatically treated as HDHPs for HSA purposes — regardless of whether the plan design meets the traditional minimum deductible requirement. The IRS has clarified that this applies to both on-exchange and off-exchange individual market plans.
This change opens HSA eligibility to approximately 7.3 million Americans currently enrolled in Bronze and Catastrophic plans, according to industry estimates. For 2026, HSA contribution limits are set at $4,400 for individuals and $8,750 for families, with an additional $1,000 catch-up contribution available for those aged 55 and older.
| Coverage Type | Annual Contribution Limit | Catch-Up (Age 55+) |
|---|---|---|
| Self-only coverage | $4,400 | +$1,000 |
| Family coverage | $8,750 | +$1,000 |
Source: IRS Revenue Procedure 2025-19. Figures are for the 2026 tax year and subject to annual inflation adjustments.
The triple tax advantage of an HSA — tax-deductible contributions, tax-free growth, and tax-free withdrawals for qualified medical expenses — makes it one of the most powerful savings vehicles in the tax code. For those also earning taxable interest from savings accounts, the HSA offers a contrasting benefit: interest earned inside the account grows entirely tax-free.
Direct Primary Care and Telehealth Coverage Changes
Two additional HSA-related provisions in the OBBBA deserve attention. First, starting January 1, 2026, individuals enrolled in qualifying direct primary care (DPC) service arrangements may contribute to an HSA and use HSA funds tax-free to pay periodic DPC membership fees.
Second, the OBBBA made permanent the ability to receive telehealth and remote care services before meeting the HDHP deductible while maintaining HSA eligibility — a flexibility that had been temporary under previous COVID-era legislation. This permanence took effect for plan years beginning on or after January 1, 2025.
Medicare Drug Prices Drop for 10 High-Cost Medications
For Medicare beneficiaries, 2026 brings a historic first: negotiated drug prices under the Medicare Drug Price Negotiation Program, authorized by the Inflation Reduction Act of 2022.
The First Round of Negotiated Prices Takes Effect
The Centers for Medicare & Medicaid Services (CMS) selected 10 drugs covered under Medicare Part D for the first cycle of negotiations. These medications treat serious chronic conditions including diabetes, cardiovascular disease, blood clots, cancer, and autoimmune disorders — and collectively accounted for approximately $56.2 billion in Part D gross spending in 2023, or about 20% of all Part D costs.
The negotiated prices, which CMS refers to as Maximum Fair Prices (MFPs), went into effect on January 1, 2026. Discounts range from 38% to 79% off list prices.
| Drug Name | Condition Treated | 2023 List Price (30-Day Supply) | 2026 Negotiated Price | Discount |
|---|---|---|---|---|
| Eliquis (apixaban) | Blood clots, stroke prevention | $521 | $231 | 56% |
| Januvia (sitagliptin) | Type 2 diabetes | $527 | $113 | 79% |
| Xarelto (rivaroxaban) | Blood clots | Negotiated | Reduced | Significant |
| Jardiance (empagliflozin) | Type 2 diabetes, heart failure | Negotiated | Reduced | Significant |
| Farxiga (dapagliflozin) | Diabetes, heart failure, kidney disease | Negotiated | Reduced | Significant |
| Entresto (sacubitril/valsartan) | Heart failure | Negotiated | Reduced | Significant |
| Enbrel (etanercept) | Rheumatoid arthritis | Negotiated | Reduced | Significant |
| Imbruvica (ibrutinib) | Blood cancers | Negotiated | Reduced | 38% |
| Stelara (ustekinumab) | Autoimmune conditions | Negotiated | Reduced | Significant |
| NovoLog/Fiasp (insulin) | Diabetes (insulin) | Negotiated | Reduced | Significant |
Source: CMS Medicare Drug Price Negotiation Program, ASPE.hhs.gov. Specific negotiated prices for Eliquis and Januvia per CMS published data. Remaining individual MFPs vary by dosage and NDC; full pricing files are available on CMS.gov. Figures correct as of March 2026.
CMS estimates that Medicare beneficiaries will save a combined $1.5 billion in out-of-pocket costs in 2026 from these negotiated prices alone. Nearly 9 million Part D enrollees used these 10 drugs as of 2023.
A second round of negotiations covering 15 additional drugs — including Ozempic — will produce negotiated prices effective in 2027. For retirees also navigating Social Security payment schedules and tax rules, these Medicare savings add another layer of financial relief.
Part D Low-Income Subsidy Copay Reductions
The OBBBA also reduces copays for Medicare Part D Low-Income Subsidy (LIS) enrollees. Generic drug copays for LIS beneficiaries are limited to $1 to $3, with a full elimination of those copays scheduled for 2028.
Additionally, the Part D annual out-of-pocket spending cap increased to $2,100 in 2026 — up from $2,000 in 2025, reflecting a 5% annual adjustment. The maximum Part D deductible also rose to $615, compared to $590 the previous year.
PBM Spread Pricing Is Now Banned
Pharmacy benefit managers (PBMs) — the entities that manage prescription drug benefits for insurance companies — have long been criticized for a practice known as “spread pricing,” where the PBM charges the health plan more for a drug than what it actually pays the pharmacy, pocketing the difference.
What This Means for Prescription Drug Costs
Effective January 1, 2026, spread pricing is prohibited under the OBBBA. PBMs must now use passthrough pricing models, where compensation is limited to flat management fees that are not tied to drug prices. Any existing contracts authorizing spread pricing must be voided by January 1, 2029.
In practical terms, this means patient cost-sharing must be capped at the actual rate paid by the health plan — eliminating the hidden markup that previously inflated out-of-pocket costs at the pharmacy counter. New reporting requirements under the OBBBA also mandate greater transparency from PBMs regarding their compensation and drug pricing practices.
The long-term effect on retail drug prices remains to be seen, but the ban addresses a pricing structure that advocacy groups and bipartisan lawmakers had targeted for years.
Dependent Care FSA Limit Jumps to $7,500
Working families gained additional tax-advantaged savings capacity in 2026, thanks to the OBBBA’s increase of the dependent care flexible spending account (FSA) limit from $5,000 to $7,500 per household — provided the employer adopts the change.
A dependent care FSA allows pre-tax payroll contributions to cover eligible child care and dependent care expenses, including daycare, after-school programs, and elder care. The contribution limit had remained at $5,000 since 1986 (with a brief increase to $10,500 during the pandemic under the American Rescue Plan Act, which expired after 2021).
The new $7,500 limit represents a 50% increase in tax-sheltered savings for qualifying families. However, this benefit is only available through employers that offer a dependent care FSA — self-employed individuals and those without employer-sponsored plans do not have access to this particular account.
For those comparing options, the dependent care FSA and the Child and Dependent Care Credit (Form 2441) serve similar purposes but cannot be applied to the same expenses. In most cases, households with adjusted gross income above $43,000 benefit more from the FSA than the credit. A CPA or enrolled agent can help determine which approach produces the greater tax savings based on individual circumstances.
What All of This Means for the 2026 Tax Return
Several of the health policy changes described above carry direct implications for federal income tax filing — making the 2026 return more complex for certain filers.
Premium Tax Credit Reconciliation on Form 8962
Any individual or family that received advance premium tax credits (APTC) for ACA marketplace coverage in 2026 must reconcile those credits on Form 8962 when filing the federal return. If actual household income for the year exceeded the estimate used when enrolling, the excess credit must be repaid — and with the reversion to pre-2021 contribution percentages, the margin for error is much smaller.
Filers whose income ends up above 400% of FPL in 2026 will need to repay the entire amount of any advance premium tax credits received, as eligibility above that threshold has been eliminated. This is a significant change from the enhanced credit era, when no income cap existed.
Understanding the relationship between adjusted gross income (AGI), modified adjusted gross income (MAGI), and PTC eligibility is now more important than ever. Strategies such as maximizing 401(k) contributions (up to $23,500 in 2026, plus catch-up contributions for those over 50), contributing to a Traditional IRA, or funding an HSA can all reduce MAGI and potentially restore or increase PTC eligibility. For a detailed look at how income levels interact with federal tax brackets, the bracket structure plays a critical role in these calculations.
Keep in mind, the new below-the-line deductions created by the OBBBA — including deductions for qualified tips (up to $25,000), qualified overtime wages (up to $25,000), and qualified auto loan interest (up to $10,000) — do not reduce AGI and therefore have no impact on premium tax credit eligibility.
HSA Contributions and Tax Deductions
HSA contributions made during 2026 are reported on Form 8889 and directly reduce AGI — making them one of the most effective tools for managing both tax liability and health insurance affordability simultaneously.
For self-employed individuals who purchased a Bronze plan on the marketplace and opened an HSA for the first time in 2026, the tax benefit is twofold: the self-employed health insurance deduction reduces AGI by the amount of premiums paid, and HSA contributions further reduce AGI by up to $4,400 (individual) or $8,750 (family). Combined with the standard deduction, these above-the-line deductions can substantially reduce taxable income.
Tax rates and thresholds referenced throughout this article are based on current IRS published guidelines as of March 2026 and are subject to change based on annual inflation adjustments and legislative updates.
Protecting Against Fraud and Knowing Where to Get Help
With significant changes to health coverage, tax credits, and Medicaid eligibility, the risk of scams increases. The IRS, Federal Trade Commission (FTC), and Treasury Inspector General for Tax Administration (TIGTA) warn that fraudsters often exploit policy changes to target confused consumers.
Common scams include fake marketplace enrollment calls, fraudulent “Medicaid renewal” phishing emails, and bogus IRS notices claiming premium tax credit overpayments. No legitimate government agency will demand immediate payment by gift card, wire transfer, or cryptocurrency.
If identity theft is suspected in connection with a tax return or health coverage enrollment, the following contacts are available:
- IRS General Inquiries: 1-800-829-1040
- IRS Identity Theft Hotline: 1-800-908-4490
- Treasury Inspector General for Tax Administration (TIGTA): 1-800-366-4484
- FTC Fraud Reporting: reportfraud.ftc.gov
- IRS Identity Protection PIN (IP PIN): Available through IRS.gov — an IP PIN is a six-digit number that prevents someone from filing a federal tax return using a stolen Social Security number.
The Taxpayer Advocate Service (TAS) also provides free assistance to individuals experiencing financial hardship or systemic IRS issues, and can be reached at 1-877-777-4778.
Final Thoughts
The 2026 health policy landscape is one of the most complex in recent memory — with changes touching ACA marketplace premiums, Medicaid eligibility, HSA access, Medicare drug pricing, PBM practices, and dependent care accounts all taking effect within the same calendar year. Each of these shifts carries downstream effects on the federal tax return, making coordination between health coverage decisions and tax planning more important than it has been in years.
Individual circumstances vary widely, and the right course of action depends on factors including income level, family size, employment type, and state of residence. Consulting a qualified tax professional — whether a CPA, enrolled agent, or tax attorney — is recommended before making major decisions about coverage, contributions, or credit eligibility. A professional can provide personalized guidance that general informational articles cannot.
Disclaimer: The information on startaxoffice.org is for general informational purposes only and does not constitute tax, legal, or financial advice. Tax laws, rates, and filing requirements change frequently. Always consult a qualified tax professional, CPA, or enrolled agent before making tax decisions. This site is not affiliated with the IRS, any state tax authority, or any tax preparation company.
Sources
- CMS — Medicare Drug Price Negotiation Program
- IRS — HSA Guidance Under the One Big Beautiful Bill (Notice 2026-05)
- KFF — ACA Marketplace Premium Payments Analysis
- Congressional Research Service — Enhanced Premium Tax Credit and 2026 Exchange Premiums
- AMA — Changes to Medicaid, ACA, and Key OBBBA Provisions
- Taxpayer Advocate Service
Frequently Asked Questions
1 Did all ACA premium tax credits end in 2026?
2 Are all Bronze marketplace plans now HSA-eligible in 2026?
3 When do Medicaid work requirements take effect?
4 How much can Medicare beneficiaries save on negotiated drugs in 2026?
5 Does the dependent care FSA limit increase to $7,500 automatically?
6 How do 2026 health policy changes affect the federal tax return?
7 What is the PBM spread pricing ban and how does it help consumers?
Ratna Kusuma is a senior insurance and personal finance writer at startaxoffice.org with over 15 years of experience covering health insurance, life insurance, auto insurance, and HSA tax benefits. A Chartered Property Casualty Underwriter (CPCU) candidate and Insurance Institute of America (IIA) certificate holder, Ratna specializes in translating complex insurance terms and tax implications into clear, practical guidance for American consumers. Her coverage spans ACA marketplace plans, Premium Tax Credits, homeowners insurance, and the tax advantages of Health Savings Accounts — always grounded in official data from IRS.gov, Healthcare.gov, and state insurance departments.
