IRS Tax Tip 2015-41: Additional Medicare Tax – What You Need to Know

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IRS Tax Tips

March 18, 2015

Issue Number: IRS Tax Tip 2015-41

Inside This Issue

Additional Medicare Tax – What You Need to Know

Some taxpayers may be liable for an Additional Medicare Tax if your income exceeds certain limits. Here are six things that you should know about this tax:

Tax Rate. The Additional Medicare Tax rate is 0.9 percent.
Income Subject to Tax. The tax applies to the amount of certain income that is more than a threshold amount. The types of income include your Medicare wages, self-employment income and railroad retirement (RRTA) compensation. You must combine your wages and self-employment income to figure the tax. You do not consider a loss from self-employment purposes of this tax. You compare RRTA compensation separately to the threshold. See the instructions for Form 8959, Additional Medicare Tax, for more on these rules.
Threshold Amount. You base your threshold amount on your filing status. If you are married and file a joint return, you must combine your spouse’s wages, compensation, or self-employment income with yours. Use the combined total to determine if your income exceeds your threshold. The threshold amounts are:

Filing Status	Threshold Amount
Married filing jointly	$250,000
Married filing separately	$125,000
Single	$200,000
Head of household	$200,000
Qualifying widow(er) with dependent child	$200,000

Withholding / Estimated Tax. Employers must withhold this tax from your wages or compensation when they pay you more than $200,000 in a calendar year. If you are self-employed you should include this tax when you figure your estimated tax liability.
Underpayment of Estimated Tax. If you had too little tax withheld, or did not pay enough estimated tax, you may owe an estimated tax penalty. For more on this topic, see Publication 505, Tax Withholding and Estimated Tax.

If you owe this tax, file Form 8959, with your tax return. You also report any Additional Medicare Tax withheld by your employer on Form 8959. Visit IRS.gov for more on this topic. You can also get forms and publications on IRS.gov/forms anytime.

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Questions and Answers for the Additional Medicare Tax

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IRS Tax Tip 2015-41: Additional Medicare Tax – What You Need to Know

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Issue Number: IRS Tax Tip 2015-41

Inside This Issue