What Employee Medicare Tax Is

Employee Medicare tax is a payroll tax that comes out of your paycheck to fund the Medicare program. Your employer withholds 1.45% of your wages for Medicare Part A (hospital insurance), and you pay another 1.45% yourself — for a total of 2.9% of your earnings. If you earn over a certain threshold, you pay an additional 0.9% on the amount above that threshold. This extra tax started in 2013 and applies to higher earners.

The money withheld from your paycheck goes directly to the federal government to support Medicare. Unlike Social Security tax, which stops after you reach a wage cap each year, Medicare tax continues on all your earnings with no upper limit — except that the additional 0.9% only applies once you cross the income threshold.

You see this tax on your pay stub labeled as "Medicare" or "Med Tax." It is separate from federal income tax withholding and Social Security tax, though all three come out of the same paycheck.

Key Takeaways

  • Employee Medicare tax is 1.45% of your wages, withheld by your employer, plus another 1.45% you pay yourself — a total of 2.9%.
  • If you earn more than $200,000 (single) or $250,000 (married filing jointly), you pay an additional 0.9% Medicare tax on income above those thresholds.
  • Unlike Social Security tax, Medicare tax has no wage cap — it applies to all your earnings every year.
  • The money funds Medicare Part A, which covers hospital stays, skilled nursing care, and hospice services for people 65 and older.

How the 1.45% Tax Works

Your employer calculates 1.45% of your gross wages each pay period and withholds that amount from your paycheck. At the same time, your employer pays an equal 1.45% to the federal government on your behalf — this is called the employer's share. You never see this employer portion; it is a separate cost to the business.

Together, the employee and employer shares total 2.9% of your wages going into the Medicare trust fund. This happens automatically with every paycheck, whether you are paid weekly, biweekly, or monthly.

If you work for multiple employers in the same year, each one withholds 1.45% independently. You do not get a break or a cap on how much total Medicare tax you pay across all jobs — the tax applies to every dollar you earn.

The Additional 0.9% Tax for Higher Earners

If your income exceeds $200,000 (if you file taxes as single), $250,000 (if you file as married filing jointly), or $125,000 (if you file as married filing separately), you owe an additional 0.9% Medicare tax on the amount above your threshold. This is sometimes called the "Net Investment Income Tax" when it applies to investment income, but the payroll version applies to wages.

Your employer is responsible for withholding this extra 0.9% once your year-to-date wages cross the threshold. If you work for more than one employer, neither employer may know about your income at the other job, so you might owe additional tax when you file your tax return. You can adjust your withholding with your employer if you expect this to happen.

The threshold amounts do not change every year — they are fixed, so they explore the same way whether you earn $200,000 in 2024 or 2025.

Where Your Medicare Tax Money Goes

The 1.45% employee Medicare tax funds Medicare Part A, which covers inpatient hospital care, skilled nursing facility stays, home health services, and hospice care. Part A is the hospital insurance portion of Medicare. When you turn 65 and become may be able to access for Medicare, Part A is what pays for these services.

The additional 0.9% tax for higher earners also goes into the Medicare trust fund to help cover rising costs. The fund is managed by the Centers for Medicare & Medicaid Services (CMS), a federal agency under the Department of Health and Human Services.

You do not choose where this money goes or how it is invested — it is a mandatory federal program. The amount you pay in Medicare tax during your working years does not determine your Medicare benefits later; your benefits are based on your age and whether you have worked long enough to be covered.

How Medicare Tax Differs From Social Security Tax

Social Security tax is 6.2% of your wages (with an equal employer share), but it only applies to the first $168,600 of your earnings in 2024 — the amount changes slightly each year. Once you reach that wage cap, no more Social Security tax is withheld for the rest of the year. Medicare tax, by contrast, has no wage cap and continues on every dollar you earn.

Social Security funds retirement, disability, and survivor benefits. Medicare funds hospital and health insurance for people 65 and older and some younger people with disabilities. The two programs are separate, and the taxes fund them independently.

If you are self-employed, you pay both the employee and employer share of both taxes — 12.4% for Social Security (on earnings up to the cap) and 2.9% for Medicare (on all earnings), plus the additional 0.9% if your income is high enough.

What to Do If You Think Your Medicare Tax Is Wrong

Check your pay stub each time you are paid to make sure the Medicare tax withheld matches 1.45% of your gross wages. If you see a different percentage, ask your payroll or human resources department to explain it. Errors do happen, and catching them early is easier than correcting them later.

If you work for multiple employers and expect to owe the additional 0.9% tax, you can file a Form W-4 with each employer to adjust your withholding. This tells your employer to withhold extra money from your paycheck to cover the additional tax you will owe. Without this adjustment, you might owe a large amount when you file your tax return in April.

When you file your tax return each year, your employer reports the Medicare tax withheld on your Form W-2. Compare this to what you actually owe based on your total income for the year. If too much or too little was withheld, the difference will show up when you file.

Frequently Asked Questions

Can I opt out of paying Medicare tax?

No. Medicare tax is mandatory for all employees and self-employed people. There is no religious exemption, no hardship exception, and no way to avoid it. It is a federal payroll tax required by law.

Do I get Medicare tax back if I do not use Medicare?

No. The tax you pay during your working years does not create a personal account that you draw from later. It funds the Medicare program for current beneficiaries. When you turn 65, you become may be able to access for Medicare benefits based on your age and work history, not on how much tax you paid.

What happens to my Medicare tax if I move to another country?

If you are a U.S. citizen or permanent resident working abroad, you may still owe Medicare tax on your income. The rules are complex and depend on tax treaties between the U.S. and the country where you work. Consult a tax professional or the IRS website for your specific situation.

Does my Medicare tax increase when I get a raise?

Yes. Medicare tax is calculated as a percentage of your gross wages, so a higher salary means higher Medicare tax. The percentage stays the same (1.45%, or 2.35% if you are over the threshold), but the dollar amount increases with your pay.

If I paid Medicare tax for 40 years, do I get more Medicare benefits?

No. Medicare benefits are not based on how much tax you paid. Part A coverage is the same for everyone 65 and older who is may be able to access. The amount you paid in taxes does not affect your coverage level or your out-of-pocket costs.