You should have a 401(k) or similar employer-sponsored plan, a traditional IRA, and a Roth IRA if eligible. These three accounts provide layered tax advantages, long-term growth potential, and flexibility in retirement planning.
Retirement accounts are designed to grow money over decades through compound interest while offering tax incentives. The most common types are employer-sponsored plans like 401(k)s and 403(b)s, and individual accounts such as traditional IRAs and Roth IRAs. Each serves a distinct purpose based on income level, tax strategy, and withdrawal timing.
The IRS sets annual contribution limits. For 2024, the limit for 401(k)s is $23,000, with an additional $7,500 catch-up contribution allowed for those aged 50 and older. Traditional and Roth IRAs allow $7,000 contributions annually, with the same catch-up provision. These caps are updated yearly and apply separately to each account type.
Contributions to 401(k)s and traditional IRAs reduce taxable income in the year they're made. Earnings grow tax-deferred until withdrawal, typically after age 59½. Withdrawals are taxed as ordinary income. This structure benefits individuals in higher tax brackets during their working years.
Roth IRAs operate differently. Contributions are made with after-tax dollars, so they don't reduce current income. But qualified withdrawals-after age 59½ and five years of account holding-are completely tax-free. This makes Roth accounts ideal for people expecting higher taxes in retirement.
For example, a 35-year-old earning $75,000 annually contributes $6,000 to a Roth IRA. That amount is taken from after-tax income. Over 25 years at a 6% average annual return, the account grows to approximately $30,000. All of that growth is withdrawn tax-free, assuming eligibility is maintained.
Each account type fills a different role in a diversified retirement strategy. The table below outlines key differences:
| Account Type | Tax Treatment | Contribution Limit (2024) | Best For |
|---|---|---|---|
| 401(k) or 403(b) | Pre-tax contributions; taxes deferred until withdrawal | $23,000 ($30,500 with catch-up) | High-income earners with employer match |
| Traditional IRA | Pre-tax contributions; taxes deferred until withdrawal | $7,000 ($10,000 with catch-up) | Individuals without employer plan access or seeking tax deductions |
| Roth IRA | After-tax contributions; tax-free growth and withdrawals | $7,000 ($10,000 with catch-up) | Lower-to-mid-income earners expecting higher future tax rates |
Employer-sponsored plans often include matching contributions-free money. A 3% match on a $75,000 salary adds $2,250 annually to your retirement fund. This is equivalent to a guaranteed 100% return on the first 3% of your pay, making it essential to contribute at least enough to capture the full match.
Many people overlook the importance of contribution timing. The IRS allows contributions for a given year until April 15 of the following year. If you wait until April, you lose nearly a full year of compounding. A $6,000 contribution made on January 1 grows to $13,200 in 20 years at 6% interest. If delayed until April 15, it reaches only $12,700-a difference of $500.
People often assume that maximizing a 401(k) is sufficient. But relying solely on one account limits tax diversification. If all funds are in pre-tax accounts, retirees may face higher marginal tax rates upon withdrawal. Having both traditional and Roth accounts provides control over taxable income in retirement.
Another misunderstanding is that Roth IRAs are only for young people. While early contributors benefit most from compounding, anyone under the income limits can open a Roth IRA. In 2024, single filers with modified adjusted gross income below $161,000 can contribute the full $7,000. Married couples filing jointly under $208,000 qualify.
A lesser-known fact: You can convert a traditional IRA to a Roth IRA at any time, but the conversion is taxable in the year it occurs. This strategy, called a "backdoor Roth," allows high earners to bypass income limits. However, the IRS requires you to calculate the pro-rata rule across all IRAs, so converting only one account may trigger unexpected tax liability.
Consider a 32-year-old software developer earning $90,000 annually. They work at a company that offers a 401(k) with a 50% match up to 6% of salary. Their goal is to retire at 65 with $1.2 million in savings.
They allocate $6,000 annually to a Roth IRA-maxing out the contribution limit. They also contribute 6% of their salary ($5,400) to the 401(k), capturing the full $2,700 employer match. This totals $11,400 in annual contributions.
Over 33 years at a 6% average return, the 401(k) grows to $735,000. The Roth IRA reaches $512,000. Combined, they exceed the $1.2 million target. The Roth portion provides tax-free income in retirement, reducing tax burden.
This strategy leverages multiple accounts to balance tax efficiency, employer benefits, and long-term growth. It's not about choosing one account-it's about using each appropriately.
When deciding what retirement accounts you should have, prioritize the 401(k) if your employer offers a match. Then fund a Roth IRA if eligible. Use a traditional IRA if you don't qualify for a Roth and want a tax deduction. Always monitor contribution limits and deadlines.