Individuals must pay an additional 0.9% Medicare tax on earned income above certain thresholds. The employee portion of the Medicare tax is increased from 1.45% to 2.35% on wages received in a calendar year in excess of $200,000 ($250,000 for married couples filing jointly; $125,000 for married filing separately). Employers must withhold and remit the increased employee portion of the Medicare tax for each employee whose wages for Medicare tax purposes from the employer are greater than $200,000.
There is no employer match for this additional Medicare tax. Therefore, the employer’s Medicare tax rate continues to be 1.45% on all Medicare wages. An employee is responsible for paying any of the additional 0.9% Medicare tax that is not withheld by an employer. The additional tax will be reported on the individual’s federal income tax return.
Because the additional 0.9% Medicare tax applies at different income levels depending on the employee’s marital and filing status, some employees may have the additional Medicare tax withheld when it will not apply to them (e.g., the employee earns more than $200,000, is married, filing jointly, and total annual compensation for both spouses is $250,000 or less). In such a situation, the additional tax will be treated as additional income tax withholding that is credited against the total tax liability shown on the individual’s income tax return.
Alternatively, an individual’s wages may not be greater than $200,000, but when combined with a spouse’s wages, total annual wages exceed the $250,000 threshold. When a portion of an individual’s wages will be subject to the additional tax, but earnings from a particular employer do not exceed the $200,000 threshold for withholding of the tax by the employer, the employee is responsible for calculating and paying the additional 0.9% Medicare tax. The employee cannot request that the additional 0.9% Medicare tax be withheld from wages that are under the $200,000 threshold. However, he or she can make quarterly estimated tax payments or submit a new Form W-4 requesting additional income tax withholding that can offset the additional Medicare tax calculated and reported on the employee’s personal income tax return.
For self-employed individuals, the effect of the new additional 0.9% Medicare tax is in the form of a higher self-employment (SE) tax. The maximum rate for the Medicare tax component of the SE tax is 3.8% (2.9% + 0.9%). Self-employed individuals should include this additional tax when calculating estimated tax payments due for the year. Any tax not paid during the year (either through federal income tax withholding from an employer or estimated tax payments) is subject to an underpayment penalty.
The additional 0.9% Medicare tax is not deductible for income tax purposes as part of the SE tax deduction. Also, it is not taken into account in calculating the deduction used for determining the amount of income subject to SE taxes.
Please contact us if you have questions about the additional 0.9% Medicare tax or any other tax compliance or tax planning issue.
Michael S. Bartholomew, CPA is the Tax Services Director for A Plus Benefits, Inc.