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Understanding FICA Tax: A Simple Guide
Understanding FICA Tax: A Simple Guide

FICA Tax, Social Security, Medicare, How its calculate, why it matters

Isabelle Talkington avatar
Written by Isabelle Talkington
Updated over 2 months ago

FICA tax, short for the Federal Insurance Contributions Act, plays a crucial role in supporting two major programs: Social Security and Medicare. These payroll taxes are deducted from employees' paychecks and help provide essential benefits like retirement income and healthcare for retirees or individuals with disabilities. Here's a breakdown of what FICA tax entails, how it's calculated, and why it's important for everyone.

1. What is FICA Tax?

FICA tax is a mandatory federal payroll tax that funds Social Security and Medicare programs. Social Security provides old-age and disability benefits to retirees and disabled individuals. The Medicare program covers health insurance costs for those over the age of 65 or those with certain disabilities. Both employees and employers contribute to these programs via payroll tax, and the funds help ensure financial security in retirement or during times of need.

2. How is FICA Tax Calculated?

FICA tax is calculated based on employees' gross wages and is divided into two main parts:

  • Social Security Tax: The social security tax rate is currently 6.2% of earned income up to the wage base limit, which is set at $160,200 for the 2023 calendar year. Any income earned above this limit is exempt from Social Security taxes, but employees still need to account for this portion in their tax return.

  • Medicare Tax: The Medicare tax rate is 1.45% of gross pay, with no wage base limit. However, high earners (over $200,000 for single filers and $250,000 for married couples) are subject to an additional Medicare tax of 0.9%. This additional Medicare tax applies only to earnings above these thresholds.

3. Why is FICA Tax Important?

FICA tax is essential because it supports critical social safety nets:

  • Social Security Benefits: The money you contribute through the social security tax rate helps provide retirement benefits and disability insurance. Your benefits depend on how much you've contributed through the FICA tax over your working years.

  • Medicare Coverage: The Medicare tax supports healthcare for retirees, ensuring they have access to medical care when they need it most. It also funds disability insurance for individuals unable to work due to health issues.

  • Financial Security: FICA tax acts as a form of financial insurance for the future, providing social security and Medicare coverage for employees' wages. This tax is key to building a safety net for retirement and healthcare costs.

4. Who Pays FICA Tax?

Both employees and employers contribute to FICA tax. The employee pays half of the total FICA tax, while the employer covers the other half. For self-employed individuals, they are responsible for paying both the employee and employer portions through SECA tax, which follows the same rules but combines the contributions into one self-employment tax payment.

5. FICA Tax and Social Security

The portion of FICA tax allocated to the social security program ensures that retirees receive monthly income after reaching the social security age base or if they qualify for disability benefits. Employers and employees alike contribute toward the social security tax rate, and these funds also go toward providing support for survivors in the event of a worker’s death.

6. FICA Tax and Medicare

The Medicare part of the FICA tax guarantees access to medical care in old age or disability. Contributions to Medicare programs ensure that retirees have access to healthcare. The additional Medicare tax applies to high earners, contributing to the overall funding of the Medicare program, which includes support for disability insurance and general healthcare.

7. Additional Considerations

  • Tax Withholding: FICA taxes are automatically deducted from employees' paychecks, but accurate tax withholding is important to avoid unexpected tax liability when filing a tax return. This can be done using a tax calculator or payroll software.

  • Unemployment Tax and Exemptions: While FICA tax covers Social Security and Medicare, there are other payroll taxes like unemployment tax, which employers pay. In addition, certain exemptions or tax deductions may apply based on gross income, filing status, or other factors.

  • Small Business Owners: If you own a small business and use payroll software, it is crucial to ensure that the correct FICA tax rates are applied and that both the employee pays and the employer portion of the total FICA tax are correctly calculated. For nonresident workers, specific federal income tax and FICA rules may also apply, including exemptions or special filing status.

Understanding how these taxes affect employees' wages and employer responsibilities is key to managing your payroll tax payments, health insurance costs, and overall tax liability for the calendar year. Proper management of payroll tax, including filing tax returns and understanding the wage base limit, ensures compliance with IRS regulations.

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