The taxation on supplemental health benefits, like disability and accident insurance, can vary. Both pre-tax and post-tax benefits can result in savings, but it’s crucial to understand the differences between the two so employees make the best decision for their financial situation. 

Understanding Different Types of Tax Deductions

When it comes to managing your finances and maximizing your income, knowing the different types of tax and deductions can help you make smarter financial decisions. Tax deductions reduce your taxable income, which can significantly lower your overall tax bill. These deductions generally fall into a few key categories:

Standard vs. Itemized Deductions

The standard deduction is a fixed dollar amount that reduces the income on which you're taxed. It's available to all taxpayers and varies depending on your filing status. On the other hand, itemized deductions allow you to list individual expenses—such as mortgage interest, medical expenses, or charitable contributions—that may exceed the standard deduction amount.

Above-the-Line and Below-the-Line Deductions

Above-the-line deductions (also called adjustments to income) are subtracted from your gross income to calculate your adjusted gross income (AGI). These can include student loan interest or contributions to retirement accounts. Below-the-line deductions are taken after your AGI is calculated and generally refer to itemized deductions.

Pre-Tax vs. Post-Tax Deductions in Payroll

Pre-tax deductions are taken out of your paycheck before federal, and sometimes even state or local taxes are applied. This can lower your taxable income and reduce your tax liability. Common examples include contributions to 401(k) retirement plans, health insurance premiums, and flexible spending accounts. These are often referred to as pre-tax benefits, as they provide tax savings by reducing taxable income.

In contrast, post-tax deductions are withheld from your earnings after taxes have been calculated. These typically include things like Roth retirement contributions, union dues, or wage garnishments.

What Are Pre-Tax Benefits and Deductions?

Pre-tax benefits involve pre-tax deductions where the benefit cost is deducted from an employee's paycheck before income and employment taxes are applied. This arrangement lowers the total income subject to taxation, resulting in a reduced tax burden for the employee.

What Are Pre-Tax Benefits?

In simple terms, pre-tax benefits are employer-sponsored programs where the benefit costs (premium or contributions) are taken from your gross pay before taxes are calculated. This means that the money used for these benefits isn't taxed, which can lead to substantial tax savings over time.

Common Pre-Tax Benefits

Under Internal Revenue Code (IRC) Section 125, certain benefits are eligible for pre-tax payroll deductions. These include:

  • Major medical insurance
  • Dependent Care Accounts (DCAs)
  • Healthcare Flexible Spending Accounts (HCFSAs)
  • Cancer insurance
  • Accident insurance
  • Dental and vision insurance

An example of how pre-taxing benefits can be most beneficial is when it comes to employees’ HSAs and HCFSAs. Contributing to these reimbursement accounts on a pre-tax basis gives employees immediate savings by reducing their taxable income and offers a valuable tax break, since reimbursements for eligible medical expenses remain tax-free. So, employees save at the time of contribution to the reimbursement account and when the benefits are paid.

Learn How a Section 125 Plan Works

 

 

What Are Post-Tax Benefits and Deductions?

Post-tax benefit premiums and/or contributions are taken from an employee's paycheck after taxes have already been deducted. This means that both the employer and employee will typically owe more income and employment tax upfront, but the employee generally won't owe income tax on the benefit amounts paid by the plan in the future. 

Common Post-Tax Benefits

Below are several benefits often paid with post-tax deductions, with key points on why they may be structured this way:

  • Disability Insurance If deducted post-tax, any benefits received due to a disability are typically tax-free. If paid with pre-tax deductions, however, the claim payments may be taxable income. 
  • Life Insurance (coverage over $50,000) Premiums for coverage above the Internal Revenue Service (IRS) tax-free threshold are usually taken post-tax to avoid future taxation on benefits.
  • Roth 401(k) Contributions Contributions are made post-tax, but qualified withdrawals, including earnings, are tax-free in retirement.
  • Voluntary Benefits (e.g., legal assistance, identity theft protection) Since these aren't tax-qualified benefits, deductions are taken after taxation. 

When Are Post-Tax Deductions Preferred?

When there's a choice, deciding between post-tax and pre-tax deductions depends on the type of benefit and the employee's long-term financial goals. In cases like disability or life insurance, post-tax contributions may more favorable because the benefits will not be taxes upon payout.

By understanding the distinctions between pre-tax and post-tax benefits, employees can optimize their benefits to help reduce future tax liabilities based on their specific financial situation.

Pre- vs. Post-Tax Deductions: A Detailed Comparison

When managing employee benefits and take-home pay, knowing the impact of pre-tax versus post-tax benefits helps employees plan for future tax liabilities. Each approach impacts how much you pay in taxes today—and how much you might owe (or save) later.

The table below summarizes key differences between pre-tax and post-tax deductions, including when taxes are applied, effects on taxable income, and common examples for each type of benefit.

 

Category

Pre-Tax Deductions

Post-Tax Deductions

When Taxes Are Applied

Deducted before income and payroll taxes

Deducted after income and payroll taxes

Effect on Taxable Income

Reduces taxable income, lowering upfront tax liability

Does not reduce taxable income

Common Examples

Health insurance, 401(k), HSA, FSA, commuter benefits

Roth 401(k), disability insurance, life insurance

Taxable When Benefits Are Used?

Usually yes (e.g., 401(k) withdrawals)

Usually no (e.g., Roth withdrawals, disability claims)

Impact on Employer Payroll Taxes

Reduces employer taxes (since gross pay is lowered)

No impact on employer-side payroll taxes

 Employees with questions about their specific tax situation should consult their own advisor. 

Are There Advantages to Either Option?

It’s important to understand the difference between pre- and post-tax benefits because choosing one or the other could be more advantageous to the employee, depending on the type of benefit. Pre-tax contributions reduce overall taxable income and provide an immediate tax break for employees. Opting for pre-tax benefits can be ideal for those seeking to reduce their current tax burden. However, with pre-tax contributions, taxes could be owed down the road when certain benefits are used. 

Post-tax contributions for benefits do not reduce overall tax burden upfront, but they can offer valuable future relief when the benefits are used, making them a potentially strategic choice for long-term savings. 

Frequently Asked Questions

What is the difference between pre-tax and post-tax benefits?

Pre-tax benefits are deducted from your paycheck before taxes, reducing your taxable income. Post-tax benefits are deducted after taxes and don't lower your current tax bill.

Which is better: pre-tax or post-tax deductions?

It depends on your personal situation and your goals, as well as which benefits you select. Pre-tax deductions may offer immediate tax savings, while post-tax deductions may provide tax-free benefits later.

Are HSA contributions pre-tax?

Yes, HSA contributions are pre-tax for federal income tax purposes if made through payroll deductions through your employer's Section 125 plan, reducing your taxable income. State tax rules may vary.

Do post-tax benefits offer any tax breaks?

Yes, some post-tax benefits, like Roth 401(k) or disability insurance, can result in tax-free payouts in the future. 

Final Thoughts on Pre-Tax vs. Post-Tax Deductions

Understanding the difference between pre-tax and post-tax deductions is essential for making more informed decisions about your benefits and financial strategy. Pre-tax deductions can reduce your current tax burden, while post-tax contributions can offer future tax-free benefits, each serving a unique purpose in managing your income. Choosing the right mix depends on your financial goals, tax situation, and the benefits your employer provides. With thoughtful planning, you can tailor your approach to suit your needs.

Have more questions about your benefits or how to help optimize your deductions? We're here to help. Reach out to your account manager or contact us for more information.

This blog is up to date as of July 2020 and has not been updated for changes in the law, administration or current events. This information is general in nature and should not be considered financial, legal or tax advice. Consult an attorney or a tax professional regarding your specific situation.