The Affordable Care Act (ACA), signed into law in 2010, aimed to expand health insurance coverage by requiring most Americans to carry a minimum level of health insurance — or pay a tax penalty known as the “shared responsibility payment.” That federal mandate has since changed significantly, but state-level rules still matter depending on where you live.
Here’s what you need to know about the current legal landscape around health insurance requirements.
Why the Individual Mandate Existed
The ACA’s “individual mandate” required Americans who weren’t exempt to obtain health insurance meeting minimum essential coverage standards. The intent was to keep the insurance pool broad enough to keep premiums manageable for everyone.
Failing to carry qualifying coverage didn’t result in a criminal charge, but it did trigger the shared responsibility penalty — a tax assessed when you filed your federal return.
The ACA also created premium tax credits to help lower- and middle-income individuals afford coverage purchased through the healthcare marketplace.
What Changed: The Federal Mandate Is Gone
Starting January 1, 2019, the federal penalty for not having health insurance was reduced to $0. In practical terms, the individual mandate at the federal level no longer carries any financial consequence. The ACA still exists — the exchanges, the subsidies, and the consumer protections remain intact — but the IRS will not penalize you for going uninsured on your federal tax return.
The American Rescue Plan (2021) further expanded premium tax credits, making marketplace plans available at reduced cost to a broader range of income levels than before.
States That Still Require Health Insurance
Even though the federal requirement is gone, several states have enacted their own individual mandates with real penalties:
- California
- Massachusetts
- New Jersey
- Vermont
- District of Columbia (Washington, D.C.)
If you live in one of these jurisdictions and lack qualifying health coverage, you may owe a state tax penalty when you file.
Where health insurance is still legally required in 2024
Other states have explored similar legislation — including Connecticut, Rhode Island, Hawaii, and Maryland — though their status may have changed. Check your state’s department of revenue or health exchange for the most current rules.
How Long Before You’re Subject to a Penalty?
Most state mandates allow for a short coverage gap — typically fewer than three months — before a penalty applies. If your gap is three months or longer, you generally cannot claim the exemption for any of those months.
If a gap spans two tax years, the short-gap rule typically applies only to the first year; months in the second year that are part of the same continuous gap are counted separately.
What State Penalties Actually Cost
State penalties vary, but they are typically structured as the greater of a flat dollar amount or a percentage of income. As a reference point, the penalty structure that existed under the ACA was 2.5% of household Adjusted Gross Income, with a minimum of roughly $695 per adult and $347.50 per child.
State mandates often follow a similar framework, but the exact figures differ by state and are updated annually. Check your state tax agency for current penalty amounts — do not rely on figures from prior years, as they may be outdated.
Beyond the penalty itself, going uninsured exposes you to uncapped out-of-pocket medical costs if something unexpected happens.
Your Coverage Options
If you’re uninsured or your current coverage doesn’t meet state minimums, here are the main paths to qualifying coverage:
Enroll Through the Health Insurance Marketplace
Open enrollment typically runs in the fall for coverage starting January 1. Outside of open enrollment, a qualifying life event (job loss, marriage, birth of a child) may trigger a Special Enrollment Period. Subsidies are available based on income — the marketplace calculator can estimate your costs.
Apply for Medicaid
Medicaid provides free or low-cost coverage for people with limited incomes. Eligibility rules vary significantly by state, including income thresholds and asset tests. If your income is modest, it’s worth checking whether you qualify before purchasing a marketplace plan.
Consider a Healthcare Cost-Sharing Program
Some people opt for healthcare cost-sharing ministries or programs as an alternative to traditional insurance. These are not insurance in the regulatory sense and may not satisfy state mandate requirements — confirm with your state before relying on one to avoid a penalty.
The Bottom Line
Going without health insurance is no longer a federal offense, and there’s no federal penalty for it. But depending on your state, you could still face a tax penalty — and more importantly, you face real financial exposure if an unexpected illness or injury requires costly care.
Review your state’s current requirements, compare your options on the marketplace, and weigh the cost of premiums against the risk of going uncovered. A plan that meets minimum coverage standards is often more affordable than many people assume, particularly after subsidies.
Note: This article is educational and reflects our independent research. It is not personalized legal, tax, or insurance advice. Consult a licensed professional or your state’s insurance exchange for guidance specific to your situation.