A SIMPLE IRA (Savings Incentive Match Plan for Employees) is primarily designed for small businesses, allowing both employees and their employers to contribute towards retirement savings. In contrast, a Roth IRA is a type of retirement savings account into which individuals deposit after-tax income, expecting tax-free earnings and withdrawals later on. Here is how they compare.
To create a retirement plan that aligns with your needs, consider working with a financial advisor.
How Does a SIMPLE IRA Work?
A SIMPLE IRA operates under the tax-deferred principle, with taxes applicable at the withdrawal stage during retirement. To clarify, the pre-tax money an employer puts into the plan and the returns it earns over the years will be taxed only when withdrawn. This arrangement offers an up-front tax advantage as it lowers the taxable income for the time contributions are made.
However, SIMPLE IRAs now accept Roth contributions, thanks to a provision of the SECURE 2.0 Act. This means that you can take advantage of the after-tax benefits of a Roth IRA. So any Roth contributions you make can grow tax-free after taxes are paid on those initial amounts
For an employer with a workforce of 100 employees or less, setting up a SIMPLE IRA involves tasks from administrative (filling an IRS form) to strategic (selecting a trustee financial institution). Informing employees about the plan and its details, and empowering them to decide their contribution amounts is a crucial step.
How Does a Roth IRA Work?
Roth IRA contributions are made up of the income you have already paid taxes on. Therefore, while this plan doesn’t provide immediate tax benefits, it does promise tax-free earnings and withdrawals during retirement. This feature can hold appeal for those expecting to climb into higher tax brackets during their retirement years.
To set up a Roth IRA, one needs qualifying earned income falling within specific limits. It can be opened through various financial platforms like a bank, brokerage firm or other financial institutions. After the account is opened, the Roth holder chooses.
Differences Between a SIMPLE and Roth IRA

When comparing these two IRA options, remember that SIMPLE IRAs that don’t include Roth contributions provide immediate tax relief and suit individuals destined for a lower tax bracket at retirement. Roth IRAs offer tax benefits upon withdrawal, catering to those who anticipate a higher tax bracket at retirement. Here is how they compare with some of the most important aspects of each:
Eligibility
A SIMPLE IRA is available to employers with 100 or fewer employees who earned at least $5,000 in any prior year and are expected to earn that amount in the current year. In contrast, Roth IRAs have income thresholds for eligible individuals, whether their filing status is single or married filing jointly.
Contribution limits
The annual contribution limit for SIMPLE IRAs is $17,000 for 2026, up from $16,500 in 2025. However, in 2026, certain eligible SIMPLE plans allow contributions up to $18,100 under SECURE Act 2.0 enhancements.
For employees aged 50 and older, the standard catch-up contribution limit is $4,000 in 2026 (up from $3,500 in 2025). However, under SECURE 2.0, certain SIMPLE plans offer a different catch-up limit of $3,850. Additionally, a special provision allows employees ages 60 to 63 to make an even larger catch-up contribution of $5,250 in 2026.
Withdrawal Rules
While both IRAs allow withdrawal from age 59 ½ without penalties, Roth IRA holders can also withdraw their original contributions tax-free anytime. Furthermore, earnings within the account become tax-free after five years if the owner is at least 59 ½ years old.
Investment Options
Both types of IRAs offer a variety of investment choices like stocks, bonds, mutual funds and ETFs. However, the range of investments in SIMPLE IRAs depends on the institution that administers the plan.
Estimate how lowering your taxable income through pre-tax retirement contributions could change your overall tax liability.
Income Tax Calculator
Calculate your federal, state and local taxes for the 2025 tax year.
Your 2025 Total Income Taxes
Federal Income & FICA Taxes
State Taxes
Local Taxes
About This Calculator
Our income tax calculator calculates your federal, state and local taxes based on several key inputs: your household income, location, filing status and number of personal exemptions.
How Income Taxes Are Calculated
-
First, we calculate your adjusted gross income (AGI) by taking your total household income and reducing it by certain items such as contributions to your 401(k).
-
Next, from AGI we subtract exemptions and deductions (either itemized or standard) to get your taxable income. Exemptions can be claimed for each taxpayer.
-
Based on your filing status, your taxable income is then applied to the tax brackets to calculate your federal income taxes owed for the year.
-
Your location will determine whether you owe local and / or state taxes.
When Do We Update? - We check for any updates to the latest tax rates and regulations annually.
Customer Service - If you would like to leave any feedback, feel free to email info@smartasset.com.
Assumptions
Deductions
- "Other Pre-Tax Deductions" are not used to calculate state taxable income.
Credits
- The only federal credit automatically calculated is the Savers Credit, depending on your eligibility.
- We do not apply any refundable credits, like the Child Tax Credit or Earned Income Tax Credit (EITC).
- We do not apply state credits in our calculations.
Itemized Deductions
- If itemizing at the federal level, you may need to itemize at the state level too. Some states don't allow itemized deductions, which is accounted for in our calculations.
- When calculating the SALT deduction for itemized deductions, we use state and local taxes, and we assume your MAGI.
- We assume that there is no cap to itemized deductions, if a state allows them.
- We do not categorize itemized deductions (such as medical expenses or mortgage interest), which could be subject to specific caps per state.
Local Tax
- Depending on the state, we calculate local taxes at the city level or county level. We do not include local taxes on school districts, metro areas or combine county and city taxes.
- With the exception of NYC, Yonkers, and Portland/Multnomah County, we assume local taxes are a flat tax on either state taxable income or gross income.
Actual results may vary based on individual circumstances and changes in tax laws or IRS regulations. Estimates provided by this calculator do not guarantee income tax amounts or rates. Past performance is not indicative of future results.
SmartAsset.com does not provide legal, tax, accounting or financial advice (except for referring users to third-party advisers registered or chartered as fiduciaries ("Adviser(s)") with a regulatory body in the United States). Articles, opinions and tools are for general informational purposes only and are not intended to provide specific advice or recommendations for any individual. Users should consult their accountant, tax advisor or legal professional to address their particular situation.
Can You Use Both a SIMPLE IRA and Roth IRA?
As long as you meet eligibility requirements for each, you can contribute to both a SIMPLE and a Roth IRA in the same year, allowing for diverse tax advantages. While the mix of immediate tax reduction (SIMPLE IRA) and tax-free withdrawal at retirement (Roth IRA) stands out as the chief benefit, the complexity of managing two different accounts, each with its rules and contribution limits, could potentially pose a challenge. That’s something to keep in mind if you plan to use both accounts.
Bottom Line

Knowing the differences between a SIMPLE IRA and a Roth IRA will position you for smart retirement planning. Bear in mind that each IRA option has unique benefits and potential drawbacks tied to individual financial situations and retirement objectives. As you deliberate about your ideal retirement plan, consider factors like income level, tax situation, retirement ambitions and the flexibility to access funds. Remember, the right choice can help your savings grow, optimize tax liabilities and result in a secure retirement.
Tips for Retirement Investing
- If you’re not sure how to invest your retirement savings, consider working with a financial advisor. SmartAsset’s free tool matches you with vetted financial advisors who serve your area, and you can have a free introductory call with your advisor matches to decide which one you feel is right for you. If you’re ready to find an advisor who can help you achieve your financial goals, get started now.
- A retirement calculator can help you figure out how much you need to save for retirement. This is the perfect starting point to start your retirement savings journey.
Photo credit: ©iStock.com/shapechange, ©iStock.com/shapechange, ©iStock.com/supersizer
