Retirement accounts and plans help people save and invest for retirement while receiving tax advantages that ordinary investment accounts may not provide.
The main types include 401(k) plans, traditional and Roth IRAs, 403(b) plans, 457(b) plans, pensions, SEP IRAs, SIMPLE IRAs, and Solo 401(k) plans.
They differ in who can use them, how contributions are taxed, how much you can contribute, and how withdrawals work. Understanding these differences makes it easier to see which options are available to you.
You may also be able to use more than one retirement account at the same time, depending on your circumstances.
What Is a Retirement Account?
A retirement account is a tax-advantaged account used to hold money and investments intended for retirement. Depending on the account, you may receive a tax benefit when you contribute, while your investments grow, or when you take qualified withdrawals.
A retirement plan is a broader term. It can describe the employer-sponsored arrangement that governs how retirement benefits are provided. For example, a 401(k) is technically a retirement plan that contains individual participant accounts.
This distinction matters because not every retirement plan works like an individual investment account.
The U.S. Department of Labor generally divides employer retirement plans into two major categories: defined benefit plans and defined contribution plans.
A defined benefit plan promises a specified retirement benefit, while a defined contribution plan builds an account balance through contributions and investment performance.
Retirement Account vs. Retirement Plan
An IRA is an individual retirement account that you can generally establish yourself if you meet the requirements.
A 401(k), 403(b), or 457(b), by contrast, is normally established by an employer or eligible organization. You participate through that employer’s plan.
A pension is different again. It is generally a defined benefit plan that promises a retirement benefit based on a formula rather than simply giving you a personal investment balance.
Main Types of Retirement Accounts and Plans
| Type | Usually available through | Main purpose |
|---|---|---|
| 401(k) | Employer | Workplace retirement savings |
| Traditional IRA | Individual | Personal retirement savings |
| Roth IRA | Individual | Personal retirement savings with Roth tax treatment |
| 403(b) | Certain employers | Retirement savings for eligible employees |
| 457(b) | Government and certain tax-exempt organizations | Workplace deferred compensation |
| Pension | Employer | Provides a defined retirement benefit |
| SEP IRA | Self-employed people and employers | Business retirement contributions |
| SIMPLE IRA | Eligible small employers | Workplace retirement savings |
| Solo 401(k) | Eligible self-employed individuals | Business retirement savings |
The right option depends heavily on your employment situation. An employee may have access to a 401(k), while a teacher may have a 403(b), a government employee may have a 457(b), and a self-employed person may have several small-business retirement options.
401(k) Plans
A 401(k) is one of the most common employer-sponsored retirement plans. Employees can generally have part of their compensation contributed to the plan, and employers may also make matching or other contributions.
A traditional 401(k) generally allows eligible employee contributions on a pre-tax basis. You generally pay income tax when taxable money is withdrawn later.
A Roth 401(k) uses a different tax approach. Contributions are made with after-tax money, and qualified withdrawals can generally be tax-free.
Some employers offer both options, allowing employees to decide how to divide their contributions between traditional and Roth treatment.
Employer matching can make a 401(k) particularly valuable. For example, an employer might contribute additional money when you contribute to the plan. The exact formula depends on the employer’s plan.
You should also check vesting rules. Your own contributions generally belong to you, while employer contributions may become fully yours only after you satisfy the plan’s vesting requirements.
For 2026, the basic employee elective deferral limit for most 401(k) plans is $24,500. Additional catch-up contributions may be available for eligible older workers, with special higher limits for certain people ages 60 through 63.
Traditional IRA
A traditional IRA is an individual retirement account that you can generally open through a financial institution if you have eligible compensation and meet the applicable rules.
Contributions may be tax-deductible, depending on your income, filing status, and whether you or your spouse are covered by a workplace retirement plan.
Money inside the account can generally grow without current federal income tax on investment gains. Withdrawals are generally taxable when distributed, and taking money out early can result in an additional tax unless an exception applies.
For 2026, the combined annual contribution limit for traditional and Roth IRAs is $7,500, with an additional $1,100 catch-up contribution available for eligible individuals age 50 or older.
The tax deduction for a traditional IRA is subject to income-based rules in some situations, so the contribution limit and the deduction rules should not be confused.
Roth IRA
A Roth IRA is another individual retirement account, but its tax treatment is different from a traditional IRA.
You contribute after-tax money, meaning you generally do not receive a deduction for the contribution. If the account meets the requirements for a qualified distribution, withdrawals of contributions and earnings can generally be tax-free.
Roth IRA eligibility can be affected by income. For 2026, the IRS lists a Roth IRA contribution phase-out range of $153,000 to $168,000 for single filers and heads of household, and $242,000 to $252,000 for married couples filing jointly.
The key idea is simple: a traditional IRA generally offers its potential tax benefit upfront, while a Roth IRA generally offers its potential tax benefit when qualified money is withdrawn.
403(b) Plans
A 403(b) is an employer-sponsored retirement plan generally available to employees of certain public schools, tax-exempt organizations, and other eligible organizations.
It works in many ways like a 401(k). Employees can make salary deferrals, and an employer may also contribute depending on the plan.
A 403(b) can have traditional and Roth contribution features when the plan offers them.
The standard employee elective deferral limit for 2026 is $24,500. Certain employees with at least 15 years of service with the same eligible organization may qualify for an additional special catch-up provision.
457(b) Plans
A 457(b) is a type of deferred compensation plan available primarily to employees of state and local governments and certain tax-exempt organizations.
Like other workplace plans, employees can generally defer part of their compensation into the plan. Governmental 457(b) plans can have important differences from 401(k) and 403(b) plans, particularly regarding distributions.
For 2026, the basic elective deferral limit for a 457(b) is $24,500, with additional catch-up opportunities available under applicable rules.
Because 457(b) rules can differ depending on whether the plan is governmental or non-governmental, employees should review their specific plan documents before making decisions.
Pension and Defined Benefit Plans
A traditional pension is generally a defined benefit plan. Instead of building a retirement benefit entirely from an investment account balance, the plan promises a specified benefit determined by a formula.
The formula may consider factors such as salary and years of service.
This is different from a 401(k), where your eventual retirement balance depends on contributions, investment performance, fees, and other factors. The Department of Labor explains that defined benefit plans promise a specified benefit, while defined contribution plans provide an account whose value changes with contributions and investment results.
Some traditional private-sector defined benefit pensions are protected within statutory limits by the Pension Benefit Guaranty Corporation.
Retirement Accounts for Self-Employed People
People who work for themselves may have access to retirement plans designed for businesses and self-employed individuals.
SEP IRA
A SEP, or Simplified Employee Pension, allows an employer to make contributions to SEP-IRAs established for eligible employees. It can also be useful for eligible self-employed individuals.
For 2026, SEP contributions are generally limited to the lesser of 25% of eligible compensation or $72,000, subject to the applicable rules. SEP plans generally do not permit regular employee salary-deferral contributions.
SIMPLE IRA
A SIMPLE IRA is designed for eligible small employers and allows employees to make salary-reduction contributions while employers generally make required contributions under the plan’s rules.
The 2026 employee contribution limit is generally $17,000, although higher limits can apply to certain plans and eligible participants.
Solo 401(k)
A Solo 401(k), also called a one-participant 401(k), can be useful for an eligible business owner who has no employees other than a spouse.
It can allow contributions in different capacities, such as employee salary deferrals and employer contributions, subject to applicable limits and rules. Because the calculations can become more complicated for self-employed individuals, professional tax or financial guidance may be useful.
How to Compare Retirement Accounts
Before choosing between available options, look at more than the account name.
1. Eligibility
First determine which accounts you can actually use. Your employer, job type, income, business structure, and other circumstances can affect eligibility.
2. Tax treatment
Understand whether contributions are made before or after tax and whether withdrawals may be taxable.
3. Contribution limits
Retirement accounts have annual limits, and those limits can change. For 2026, the standard IRA limit is $7,500, while the basic employee deferral limit for most 401(k), 403(b), and governmental 457(b) plans is $24,500.
4. Employer contributions
If your employer offers a matching contribution, understand how much you need to contribute to receive the available match.
5. Investment choices
A retirement account is a tax structure, not an investment itself. The investments available inside the account depend on the plan or financial institution.
6. Fees
Compare investment expenses, administrative fees, account fees, and other costs. Even small recurring costs can reduce the amount that remains invested over many years.
7. Withdrawal rules
Retirement accounts are generally designed for long-term saving. Early withdrawals can result in income taxes, additional taxes, or other consequences depending on the account and circumstances.
8. Required minimum distributions
Some retirement accounts are subject to required minimum distribution rules. The rules vary by account type, age, and circumstances, so current IRS guidance should be checked before taking or delaying distributions.
Can You Have More Than One Retirement Account?
Yes. Having multiple retirement accounts is common.
For example, an employee might contribute to a workplace 401(k) while also contributing to an IRA. Someone changing jobs might leave retirement savings in a former employer’s plan, roll eligible money into another retirement account, or use another option permitted by the applicable rules.
Having several accounts does not automatically make a retirement strategy better. The important considerations include tax treatment, fees, investment choices, contribution limits, employer benefits, and your overall financial circumstances.
Also remember that some contribution limits apply across multiple plans. For example, elective deferrals to certain 401(k), 403(b), and SIMPLE plans are subject to aggregation rules.
How to Choose the Right Type for You
There is no single retirement account that is best for everyone. Start with the accounts available to you and then compare their tax treatment, employer benefits, costs, investment choices, and withdrawal rules.
- If your employer offers a 401(k) match: understand the matching formula and consider how your contributions can qualify for available employer contributions.
- If you have a workplace plan but no match: compare the plan’s investment choices and fees with the individual retirement accounts available to you.
- If you do not have an employer retirement plan: a traditional IRA or Roth IRA may provide an individual retirement savings option, subject to the applicable rules.
- If you are self-employed: compare options such as a SEP IRA, SIMPLE IRA, and Solo 401(k), considering your income, business structure, employees, and desired contribution approach.
- If you are deciding between traditional and Roth: consider your current tax situation, expected future tax situation, eligibility, and whether you value a potential tax benefit now or tax-free qualified withdrawals later.
The decision does not always have to be either-or. Depending on the rules, using more than one retirement account can be part of a broader retirement strategy.
Frequently Asked Questions
What are the main types of retirement accounts?
The major types include 401(k)s, traditional IRAs, Roth IRAs, 403(b)s, 457(b)s, SEP IRAs, SIMPLE IRAs, and Solo 401(k)s. Traditional pensions are another major type of retirement plan, although they work differently from individual account-based plans.
What is the difference between a 401(k) and an IRA?
A 401(k) is generally an employer-sponsored retirement plan, while an IRA is an individual retirement account. They have different contribution limits, eligibility rules, and administrative structures.
Can I have a 401(k) and an IRA?
In many circumstances, yes. Having a 401(k) does not automatically prevent you from contributing to an IRA, although income and workplace-plan coverage can affect whether traditional IRA contributions are deductible and whether you can make direct Roth IRA contributions.
Is a Roth IRA better than a traditional IRA?
Neither is universally better. A traditional IRA may provide a current tax deduction when you qualify, while a Roth IRA generally provides the possibility of tax-free qualified withdrawals. Your circumstances determine which treatment may be more useful.
Which retirement account is best for self-employed people?
Eligible self-employed individuals may consider a SEP IRA, SIMPLE IRA, or Solo 401(k). The most suitable option depends on factors such as income, employees, contribution goals, and plan administration.
Do retirement contribution limits change?
Yes. Federal retirement contribution limits can change because of cost-of-living adjustments and changes in tax law. For that reason, contribution figures should always be checked for the specific tax year.
Conclusion
The main types of retirement accounts and plans serve different purposes. 401(k)s are common workplace plans, IRAs provide individual retirement-saving options, 403(b)s and 457(b)s serve specific groups of employees, pensions provide defined benefits, and SEP, SIMPLE, and Solo 401(k) arrangements can help eligible self-employed people and small businesses save for retirement.
The most useful first step is to identify which accounts you are eligible for. Then compare tax treatment, contribution limits, employer contributions, investment choices, fees, and withdrawal rules.
Retirement rules can change, so check current IRS guidance and your specific plan documents before making financial decisions.
