The Medicare Employee Tax Is a Payroll Deduction That Funds the Medicare Program
The Medicare employee tax is a percentage of your wages that your employer withholds from your paycheck and sends to the federal government. It funds Part A of Medicare, which covers hospital stays, skilled nursing care, and hospice. As of 2024, the rate is 1.45% of your gross wages, with no income limit — you pay it on every dollar you earn.
Your employer also pays a matching 1.45%, so the total Medicare tax is 2.9% of your wages. If you are self-employed, you pay both the employee and employer portions yourself, which totals 2.9% of your net self-employment income. This is separate from Social Security tax, which has a wage cap and a different rate.
The Medicare tax has been part of the payroll system since 1965. It is not optional, and there is no way to avoid it while working. The money goes into the Hospital Insurance Trust Fund, which pays Medicare Part A claims for people age 65 and older, some younger people with disabilities, and people with end-stage renal disease.
Key Takeaways
- The Medicare employee tax is 1.45% of your wages, withheld by your employer with no income limit.
- Your employer matches the 1.45%, so the total Medicare tax is 2.9% of your wages.
- Self-employed people pay both portions themselves, totaling 2.9% of net self-employment income.
- High earners pay an additional 0.9% Medicare tax on wages above $200,000 (single) or $250,000 (married filing jointly).
- The tax funds Medicare Part A, which covers hospital care, skilled nursing, and hospice for people 65 and older.
How the Medicare Tax Appears on Your Paycheck
When you receive your pay stub, you will see a line labeled "Medicare Tax" or "Med Tax" showing 1.45% of your gross wages deducted. This amount is separate from federal income tax withholding and Social Security tax. The deduction happens automatically — you do not need to do anything to make it occur.
Your employer sends the withheld amount to the Internal Revenue Service (IRS) along with their matching portion. This happens monthly or quarterly, depending on the employer's size and IRS rules. The money does not go into a personal account in your name; it goes into the general Hospital Insurance Trust Fund that pays all Medicare Part A claims.
If you work for multiple employers in the same year, each one withholds 1.45% from your pay. Unlike Social Security tax, there is no wage cap where the withholding stops, so you will pay Medicare tax on all your earnings no matter how much you make.
The Additional Medicare Tax for High Earners
If your wages exceed certain thresholds, you pay an additional 0.9% Medicare tax on the amount above the threshold. For single filers, the threshold is $200,000 per year. For married couples filing jointly, it is $250,000. For married people filing separately, it is $125,000. This additional tax began in 2013 as part of the Affordable Care Act.
Your employer is required to withhold the additional 0.9% once your wages cross the threshold in that calendar year. If you work for multiple employers, each one withholds based only on what they pay you, so you might overpay the additional tax during the year. When you file your tax return, you can claim a refund of any overpayment.
Self-employed people calculate the additional tax on their annual tax return rather than having it withheld throughout the year. If you expect to owe additional Medicare tax, you may want to make estimated tax payments to avoid a large bill when you file.
Self-Employment and the Medicare Tax
If you are self-employed, you pay both the employee and employer portions of the Medicare tax yourself. This totals 2.9% of your net self-employment income (your business income minus business expenses). You calculate this on Schedule SE when you file your annual tax return.
Self-employed people can deduct half of their self-employment tax as an adjustment to income on their tax return. This reduces your taxable income but does not reduce the amount of Medicare tax you owe. The deduction is meant to offset the fact that self-employed people pay both portions of the tax.
If you have both W-2 wages from an employer and self-employment income, you pay Medicare tax on both. The additional 0.9% Medicare tax applies to your combined W-2 wages and self-employment income if the total exceeds the threshold for your filing status.
What the Medicare Tax Funds
The Medicare employee tax funds Part A of Medicare, which is hospital insurance. Part A covers inpatient hospital stays, care in a skilled nursing facility after a hospital stay, home health services, and hospice care. It does not cover doctor visits, outpatient care, or prescription drugs — those are covered by Medicare Parts B and D, which are funded differently.
When you turn 65, you become may be able to access for Medicare Part A based on your work history and tax contributions. You do not need to pay a premium for Part A if you or your spouse paid Medicare taxes for at least 10 years (40 quarters). If you do not meet this requirement, you can still enroll in Part A but will pay a monthly premium.
The Hospital Insurance Trust Fund that receives Medicare tax revenue is separate from the general treasury. The trustees of the fund publish annual reports on whether the fund has enough money to pay all Part A claims. In recent years, the fund has faced long-term solvency challenges, which is why policymakers sometimes discuss changes to the Medicare tax rate or wage cap.
How Medicare Tax Differs From Social Security Tax
Medicare tax and Social Security tax are often confused because they are both payroll taxes withheld from your paycheck. However, they fund different programs and have different rules. Social Security tax is 6.2% of your wages, but only up to a wage cap that changes each year — in 2024, the cap is $168,600. Once you earn that much, your employer stops withholding Social Security tax for the rest of the year.
Medicare tax has no wage cap. You pay 1.45% on every dollar you earn, no matter how much you make in a year. This is why high earners pay a larger percentage of their income in Medicare tax than in Social Security tax. Additionally, the additional 0.9% Medicare tax for high earners has no cap either.
Both taxes are matched by your employer if you are a W-2 employee. Both are self-funded by self-employed people. But Social Security benefits are based on your earnings history and the age you claim, while Medicare Part A is available to everyone 65 and older regardless of how much they earned.
Frequently Asked Questions
Can I opt out of paying the Medicare employee tax?
No. The Medicare tax is mandatory for all employees and self-employed people. There are no religious or personal exemptions. The only way to avoid it is to not work, but that would affect your Social Security benefits and other income.
What happens to the Medicare tax money I pay?
It goes into the Hospital Insurance Trust Fund, which pays Medicare Part A claims for all beneficiaries. You do not have a personal account. When you turn 65 and enroll in Medicare Part A, the fund pays your hospital bills, but the money comes from current tax revenue and the fund's reserves, not from the specific taxes you paid.
Do I pay Medicare tax on tips and bonuses?
Yes. Medicare tax applies to all wages, including tips you report to your employer, bonuses, and commissions. Your employer withholds Medicare tax on the full amount of your compensation.
If I work part-time and earn under $200,000, do I still pay the additional 0.9% Medicare tax?
No. The additional 0.9% Medicare tax only applies to wages above $200,000 (for single filers) or $250,000 (for married couples filing jointly). If your total wages are below the threshold, you pay only the standard 1.45% Medicare tax.
What if I move to another country — do I still pay Medicare tax?
If you work for a U.S. employer or are self-employed with U.S. income, you still owe Medicare tax on that income. U.S. citizens and resident aliens are taxed on worldwide income. Nonresidents may have different rules depending on tax treaties between the U.S. and their country.