Difference Between Income Tax and Payroll Tax Explained

November 13, 2024


Employment taxes, such as income tax and payroll tax, are complex and often confusing aspects of running a business. Understanding the differences between income and payroll taxes will help you ensure compliance and avoid penalties. While both are deducted from employees' paychecks, they serve different purposes, contribute to various government funds such as Medicare and Social Security, and are calculated differently. 

This blog will walk you through how to calculate them, the difference between income and payroll tax, and explore concepts like tax withholding and tax deductions to help you navigate the complexities of employment taxes. 

Contents

What Is Payroll Tax?

What Is Income Tax?

Income Tax and Payroll Tax Responsibilities for Employees and Employers

How to Calculate Payroll Tax?

How to Calculate Income Tax?

Best Practices for Managing Income Tax and Payroll Tax

Payroll Tax vs Income Tax: The Wrap-Up

FAQ

What Is Payroll Tax?

Payroll tax is a tax imposed on employers and employees. It typically includes Social Security (not applicable to certain workers, such as federal employees and some state and local government workers), Medicare (applicable to most workers), and unemployment compensation taxes. 


Employers are responsible for withholding taxes from employees' paychecks based on information provided on Form W-4. They also contribute to Social Security and Medicare taxes, which fund retirement benefits and healthcare programs. Additionally, employers pay unemployment compensation taxes, including FUTA (Federal Unemployment Tax Act) taxes, to federal and state authorities. 


These taxes are often reflected on an employee's pay stub and are subject to a certain threshold for eligibility. Social Security and Medicare taxes, collectively known as FICA taxes, are generally not imposed on specific groups, including retired workers and those who have reached the Social Security wage base limit. For Social Security, employees pay 6.2%, employers pay an equal amount for each employee, and for Medicare, Both employees and employers pay 1.45%.

What Is Income Tax?

Income Tax is a tax levied on individuals and businesses based on income. It is a significant source of revenue for governments and is used to fund public services like education, healthcare, and infrastructure.

The Internal Revenue Service (IRS) collects federal income taxes in the United States. Individuals must file a tax return annually to report their income and calculate their tax liability. The amount of tax owed depends on taxable income, filing status, and deductions and credits.

While most states in the US have income tax systems, eight states—Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, and Wyoming—don't charge state income tax. However, many states and localities impose local income taxes.

Income taxes in the US are progressive, meaning that the tax rate increases as income increases. Employers typically withhold income taxes from employees' gross wages throughout the year based on information provided on Form W-2. To learn more about federal income tax, individuals can consult IRS Publication 15.

Income Tax and Payroll Tax Responsibilities for Employees and Employers

Employee Responsibilities:

Income Tax:

  • Provide accurate information on Form W-4 to determine tax withholding.

  • File an annual tax return to report income and pay any additional taxes owed.

Social Security and Medicare:

  • Understand the FICA tax rates and how they are deducted from paychecks.

  • Be aware of the Social Security wage base limit.

Health Savings Account (HSA) Contributions:

  • Make contributions to an HSA, if eligible, to reduce taxable income.

Employer Responsibilities:

Income Tax

  • Withhold federal and state income taxes from employee paychecks based on Form W-4.

  • File quarterly Form 941 to report and pay withheld taxes to the federal government.

Social Security and Medicare

  • Withhold FICA taxes from employee paychecks.

  • Match the employee's contribution to Social Security and Medicare.

Unemployment Taxes

  • Pay federal and state unemployment taxes, including FUTA and SUTA.

  • File Form 940 to report federal unemployment taxes.

Other Taxes:

  • Withhold additional taxes, such as local income taxes, if applicable.

  • File Form W-3 and Form 1096 to report wage and tax information.

How to Calculate Payroll Tax?

Payroll tax is a complex calculation involving several components. Here’s how to determine how much payroll tax to withhold. 

Critical Components of Payroll Tax:

FICA (Federal Insurance Contributions Act) Taxes:

  • Social Security Tax: 6.2% of employees' wages up to a specific wage base limit.  

  • Medicare Tax: 1.45% of an employee's wages.  

  • Employer's Share: Employers match the employee's contribution to Social Security and Medicare.

Federal Unemployment Tax Act (FUTA):

  • A federal tax paid by employers to fund state unemployment insurance programs.  

  • The current FUTA tax rate is 6.0%.  

  • However, employers may receive a credit for state unemployment taxes paid, reducing the net FUTA tax liability.

State Unemployment Tax Act (SUTA):

  • A state-specific tax paid by employers to fund state unemployment insurance programs.  

  • Rates vary by state

Example

Let's say an employee earns $2,000 in a pay period. Here's how to calculate the payroll taxes:

FICA Taxes:

  • Social Security: $2,000 * 6.2% = $124 (employee's share)

  • Medicare: $2,000 * 1.45% = $29 (employee's share)

  • Employer's Share: $124 + $29 = $153

FUTA Tax:

  • Assuming a state unemployment tax credit of 5.4%, the net FUTA tax rate would be 0.6% (6.0% - 5.4%).  

  • FUTA Tax: $2,000 * 0.6% = $12

SUTA Tax:

  • The SUTA tax rate varies by state, so you must consult your state's specific regulations to calculate this amount.

Total Payroll Taxes:

  • Employee's Portion: $124 (Social Security) + $29 (Medicare) = $153

  • Employer's Portion: $153 (FICA match) + $12 (FUTA) + SUTA Tax

How to Calculate Income Tax?

Calculating income tax can be a complex process, depending on various factors. Here’s how to determine how much income tax you should withhold. 

Critical Components of Income Tax

1. Determine Your Gross Income:

  • This includes your gross wages from employment, self-employment income, investment income, and other sources.

2. Identify Deductions and Credits:

  • Standard Deduction: A fixed amount that can be subtracted from your adjusted gross income (AGI).

  • Itemized Deductions: These are specific expenses, such as mortgage interest, charitable donations, and medical costs, that can be deducted. 

  • Tax Credits: Direct reductions in your tax liability, such as the child tax credit or earned income tax credit.

3. Calculate Your Taxable Income:

  • Adjusted Gross Income (AGI): Subtract deductions from your gross income.

  • Taxable Income: Subtract further adjustments, like personal exemptions, from your AGI.

4. Determine Your Tax Bracket:

  • The U.S. federal income tax system uses a progressive tax system with multiple tax brackets.

  • Your taxable income determines which tax bracket you fall into.

5. Calculate Your Federal Income Tax:

  • Multiply each portion of your taxable income by the corresponding tax rate for that bracket.

  • Add up the taxes owed for each bracket to get your total federal income tax liability.

Consider State and Local Taxes:

  • Many states and localities impose their income taxes.

  • Your state and local income tax rates can vary significantly.

  • Check your state's tax department for specific rates and regulations.

Additional Considerations:

  • Withholding: Employers withhold taxes from your paycheck based on information provided on Form W-4.

  • HSA Contributions: Contributions to a Health Savings Account (HSA) can reduce your taxable income.

Example

Let's say your taxable income is $50,000. Using a simplified tax bracket system, you might have:

  • First $10,000: Taxed at 10% = $1,000

  • Next $25,000: Taxed at 15% = $3,750

  • Last $15,000: Taxed at 25% = $3,750

Total Federal Income Tax: $1,000 + $3,750 + $3,750 = $8,500

Best Practices for Managing Income Tax and Payroll Tax

For Individuals:

  • Understand Your Tax Bracket: Know your income tax bracket to estimate your tax liability.

  • File Your Taxes on Time: Avoid penalties by filing your tax return before the deadline.

  • Keep Accurate Records: Maintain records of income, expenses, and tax-related documents.

  • Consult a Tax Professional: Seek advice from a qualified accountant or tax advisor for complex tax situations.

For Businesses:

  • Categorize Employees: Differentiate between salaried, hourly, and contractors to apply appropriate tax rules.

  • Understand Federal and State Regulations: Stay updated on federal and state tax laws to ensure compliance.

  • Choose the Right Payroll Method: Decide whether to handle payroll in-house or outsource it to a payroll service provider.

  • Accurate Record-Keeping: Maintain detailed records of employee hours, wages, taxes withheld, and other relevant information. Invest in software like SaasAnt Transactions to automate the bulk import and export of data from accounting software like QuickBooks or Xero. 

  • Issue Accurate Pay Stubs: Provide employees with clear and accurate pay stubs that detail gross wages, net pay, and tax deductions.

  • File Payroll Taxes on Time: By the deadlines, submit required payroll forms, such as Form 941, to the Internal Revenue Service (IRS).

  • Use Payroll Software: Utilize payroll software to automate calculations, generate paychecks, and file tax forms efficiently. 

  • Regularly Review Payroll Processes: Conduct periodic reviews to identify potential errors and improve efficiency.

  • Consult with an Accountant: Seek advice from an accountant to ensure compliance with tax laws and optimize tax strategies.

Payroll Tax vs Income Tax: The Wrap-Up

Now that we've seen the difference between income and payroll tax, it's clear that understanding these concepts is crucial for businesses of all sizes. By grasping the nuances of each tax and staying compliant with federal and state regulations, you can simplify your payroll processes and avoid costly penalties.

Remember, accuracy is paramount. Invest in reliable accounting automation software like SaasAnt Transactions to save time and reduce errors, freeing up valuable resources to focus on growing your business.

FAQ

What is one difference between income and payroll tax?

The one difference between income tax and payroll tax is that income tax is levied on individuals and businesses based on their income. In contrast, payroll tax is a tax imposed on employers and employees, typically including income taxes, Social Security, Medicare, and unemployment taxes.

What is the difference between income tax expense and payroll tax expense?

Income tax expense is a tax levied on an individual or business based on their income. In contrast, payroll tax expense is a tax imposed on employers and employees to fund social programs like Social Security and Medicare. Income tax is based on total income, while payroll tax is specifically tied to employee wages.

Who pays payroll taxes?

Both employers and employees contribute to payroll taxes. Employers withhold income taxes from employee paychecks and also pay a portion of Social Security and Medicare taxes. Employees pay the remaining Social Security and Medicare taxes through payroll deductions. 

What is the difference between income tax and FICA?

Income tax is a broad tax on earnings that funds various government programs. FICA (Federal Insurance Contributions Act) tax is a specific payroll tax that funds Social Security and Medicare. While income tax rates are progressive, FICA taxes are levied flatly.



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