Retirement Accounts Explained

Retirement accounts are investment accounts that get special tax treatment in exchange for limits on how much you can put in and rules on when you can take money out. Some are sponsored by an employer, such as a 401(k), and others you open on your own, such as an individual retirement account (IRA).

The tax break takes one of two forms. Traditional (pre-tax) accounts let you deduct or exclude contributions now and pay income tax on withdrawals later. Roth accounts take money you’ve already paid tax on and let qualified withdrawals come out tax free. Either way, investment growth isn’t taxed year to year inside the account, which is the main difference from an ordinary taxable brokerage account.

Types of Retirement Accounts

Catch-up contributions are extra. At 50 and older, you can add $8,000 to the 401(k), 403(b), 457(b), and TSP limit, and $1,100 to the IRA limit. From 60 through 63, a larger $11,250 catch-up replaces the $8,000 amount in workplace plans. If your prior-year FICA wages (Form W-2, box 3) from the employer sponsoring the plan were above $150,000, workplace catch-up contributions must go in as Roth, and if the plan has no Roth option you can’t make catch-up contributions at all; self-employment income doesn’t count toward that test. SIMPLE IRA catch-ups are smaller: $4,000 at 50 and older ($3,850 in plans using the higher contribution tier), or $5,250 from 60 through 63. HSA owners add $1,000 from age 55.

For IRAs as a group, including deductibility rules and withdrawal exceptions, see individual retirement accounts. The money an employer adds to a workplace plan has its own rules and limits, covered in employer contributions.

The 3 Types of Retirement Accounts by Tax Treatment

Retirement savings fall into three tax buckets, and in retirement the bucket matters more than the account’s name.

Tax-deferred accounts include traditional 401(k)s, traditional IRAs, and SEP IRAs. You get the tax break now, and withdrawals later are generally ordinary income, apart from any nondeductible contributions. Required minimum distributions (RMDs) force withdrawals starting at 73 if you were born between 1951 and 1959, or 75 if you were born in 1960 or later. The exception applies only to workplace plans, not IRAs (including SEP and SIMPLE IRAs): a plan at an employer you still work for can often wait until you retire, unless you own more than 5% of the company.

Tax-free accounts are the Roth versions. You pay tax on contributions up front, and qualified withdrawals, including all the growth, are tax free. Roth IRAs and Roth 401(k)s have no RMDs during the original owner’s lifetime, and qualified withdrawals don’t count toward the income tests for Medicare premiums or Affordable Care Act (ACA) subsidies.

Taxable brokerage accounts aren’t retirement accounts, but they can fund retirement too. There’s no contribution limit, no deduction, and no age restriction on withdrawals. Dividends and realized gains are taxed each year, with long-term gains taxed at lower rates than wages.

An HSA sits outside all three: contributions go in pre-tax and qualified medical withdrawals come out tax free, so it can be untaxed at every stage.

Holding money in more than one bucket gives you a choice each year in retirement about which kind of income to create. With every account entered in one plan, you can see which account each year’s spending is drawn from and where a withdrawal would trigger an early-withdrawal penalty.

Retirement Accounts for the Self-Employed

A self-employed person with no employees can usually choose between a SEP IRA and a solo 401(k), and both top out at $72,000 for 2026 before catch-up contributions.

The difference is how quickly you get there. A SEP IRA allows only employer contributions, capped at 25% of compensation, which for a sole proprietor works out to roughly 20% of net self-employment earnings after the deduction for half of self-employment tax. A solo 401(k) allows that same employer contribution plus a $24,500 employee deferral, so at moderate incomes it can shelter far more. A SEP is simpler to set up and administer. Hiring employees changes the picture: a SEP must contribute the same percentage of pay for every eligible employee, and a solo 401(k) generally has to become a regular 401(k) that covers eligible employees.

Which Retirement Account Is Best?

None is best in general; the right order depends on what your employer offers and your tax bracket.

Contributing enough to get the full employer match usually comes first, since the match is compensation you can’t get any other way (see the 401(k) match). If you’re eligible for an HSA, its tax treatment is hard to beat for money you can leave invested. An IRA lets you choose from anything your brokerage offers rather than a plan’s fund menu. After that, raising your workplace contributions toward the $24,500 limit and then investing in a taxable account covers the rest.

Choosing between traditional and Roth within each account is a separate decision, driven by whether your tax rate is likely to be higher now or in retirement. Pre-tax contributions walks through that comparison.

Frequently Asked Questions

How many retirement accounts can I have? As many as you like. The limits apply per person across each type, not per account: $7,500 in total across all your IRAs, and $24,500 in total deferrals across every 401(k), 403(b), and TSP, even with more than one employer. A 457(b) has its own separate limit.

Can I have a 401(k) and an IRA? Yes, and the limits are separate. Being covered by a workplace plan can reduce or eliminate the deduction for traditional IRA contributions at higher incomes, but it doesn’t affect whether you can contribute.

What happens to retirement accounts when you die? They pass to the beneficiaries named on the account, and that designation overrides your will. A surviving spouse can generally treat an inherited IRA as their own. Most other beneficiaries must empty an inherited account within 10 years under the SECURE Act, with exceptions for minor children, disabled or chronically ill beneficiaries, and people not more than 10 years younger than the owner.

How do I find old retirement accounts? Contact the former employer’s plan administrator, or search the Department of Labor’s Retirement Savings Lost and Found database, which covers employer plans. IRAs that went unclaimed and were turned over to a state may show up in that state’s unclaimed property search.

Does net worth include retirement accounts? Yes. Keep in mind that a traditional account balance includes income tax you haven’t paid yet, so $100,000 in a traditional IRA is worth less to you than $100,000 in a Roth IRA.

Are retirement accounts protected from creditors? Employer plans covered by the Employee Retirement Income Security Act (ERISA) are generally shielded from most creditors under federal law. IRAs are protected in bankruptcy up to an inflation-adjusted cap, and outside bankruptcy their protection depends on state law.