There is no longer a federal tax penalty for not having health insurance in the U.S., but several states (and D.C.) still charge their own penalties if you go uninsured without an exemption. The exact amount depends heavily on where you live, your income, and how long you are uninsured.

Big picture (U.S. in 2026)

  • The federal Affordable Care Act ā€œindividual mandateā€ penalty ended after the 2018 tax year, so the IRS no longer fines you just for being uninsured.
  • A handful of states plus Washington, D.C., now run their own mandates and penalties through their state tax systems.
  • You can often avoid a penalty if you qualify for a hardship or affordability exemption, or if you are uninsured only for a short gap (often under 3 months).

Where there is a penalty

States/jurisdictions with some form of health coverage mandate and enforcement include:

  • California ā€“ Requires coverage or a penalty on your state tax return; for a full year without coverage, the minimum penalty for the 2025 tax year is at least about $950 per uninsured adult and $450 per uninsured child , with higher amounts for higher-income households.
  • Massachusetts ā€“ Uses a sliding-scale penalty that can reach up to about half the cost of a low-cost plan for higherā€‘income adults, assessed monthly if you go without qualifying coverage.
  • New Jersey ā€“ Penalty is the higher of a flat dollar amount per person or about 2.5% of household income , capped around the cost of a lower-tier ā€œbronzeā€ plan.
  • Rhode Island ā€“ Mirrors the old federal ACA formula, combining a flat per-person fee and a percentage of income.
  • District of Columbia ā€“ Can charge up to 2.5% of household income or a perā€‘person dollar penalty , whichever is higher.
  • Vermont ā€“ Requires you to report coverage status but, as of now, has no actual cash penalty, though rules could change in future years.

In other states, there is currently no state-level fine just for being uninsured, though you still risk large medical bills if something serious happens while you have no coverage.

How penalties are calculated

The details vary by state, but most use one or more of these methods:

  • Flat dollar amount per person
    • Example: A minimum penalty per uninsured adult and per uninsured child in California, increasing for larger families and higher incomes.
  • Percentage of income
    • Many states use a percentage of household income above a filing threshold (commonly around 2.5% of income) and then compare it to a flat amount.
  • Whichever is higher (flat vs. percentage)
    • Several jurisdictions (like New Jersey, Rhode Island, D.C.) use ā€œgreater of flat fee or % of incomeā€ rules.
  • Time without coverage
    • Penalties are usually prorated by the number of months you go without qualifying coverage: the longer you are uninsured, the more you owe.

What happens if you stay uninsured

Skipping health insurance can hurt you in two ways at once:

  • Tax-time surprise
    • In mandate states, the penalty is added to your state income tax bill.
    • You may lose a refund or even owe money if you went uninsured without an exemption.
  • Medical debt risk
    • Emergency care, hospital stays, and specialist visits can cost thousands to tens of thousands of dollars without coverage.
    • Even a ā€œminorā€ accident (like a broken arm) can generate bills far higher than many state penalties.

How to avoid or reduce the penalty

If you are worried about ā€œwhat is the penalty for not having health insuranceā€ where you live, these steps can help:

  1. Check your stateā€™s rules
    • Search your state health exchange or tax department site (for example, Covered California, New Jersey marketplace, MassHealth) for the latest penalty charts and exemption forms.
  1. See if you qualify for an exemption
    • Common exemptions:
      • Income too low for coverage to be considered affordable
      • Short coverage gaps
      • Certain hardships (homelessness, eviction, domestic violence, large medical debt, etc.)
    • States publish specific lists and documentation requirements.
  1. Look at lowā€‘cost coverage options
    • Marketplace plans with premium tax credits
    • Medicaid or CHIP if your income is low enough
    • Catastrophic or highā€‘deductible plans (for those who qualify) paired with HSAs or similar.
  1. Compare the penalty vs. coverage
    • In many cases, subsidized coverage can cost less per month than the annual penalty, especially when you factor in protection from unexpected medical bills.

TL;DR: In most of the U.S. today there is no federal penalty for going without health insurance, but several states and D.C. will charge you a state tax penalty unless you have coverage or qualify for an exemption. The dollar amount ranges from a few hundred dollars per adult to several thousand dollars per family, depending on your income and how long you stay uninsured.

Information gathered from public forums or data available on the internet and portrayed here.