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A 401(k) is usually the first destination for contributions after age 70 when it offers a valuable employer match; after that, the better account depends on tax deductibility, plan costs, investment choice, withdrawal rules and your need for control. You can still contribute to either account while working, but each has conditions. A traditional IRA requires taxable compensation, while 401(k) deferrals require current work and an employer plan that permits them. Required minimum distributions (RMDs) can continue even while you contribute, and an RMD itself does not count as compensation for an IRA contribution.
This comparison uses 2026 federal rules and the IRS guidance linked throughout. Your filing status, modified adjusted gross income, workplace-plan coverage, employer match, state taxes and exact plan document can change the result.
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| Name | Best for | Key spec | Checked |
|---|---|---|---|
| 401(k) | Workers seeking an employer match, payroll deferrals or a current-employer RMD delay | 2026 employee deferral limit: $24,500; standard age-50-plus catch-up: $8,000 | November 2026 |
| Traditional IRA | Workers wanting broad investment choice and personal withdrawal control | No age cap on contributions, but taxable compensation is required; deductibility depends on income and plan coverage | November 2026 |
Prices checked November 2026.
Sources: IRS 401(k) contribution-limit guidance and IRS Topic No. 451.
Can you contribute to a 401(k) or traditional IRA after age 70?
Yes, age alone does not stop contributions to either account. The requirements are different: a 401(k) contribution depends on working for an employer whose plan allows you to participate, while a traditional IRA contribution requires taxable compensation for the year.
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Traditional IRA rule
The IRS states: “There is no age limit to contribute to a traditional IRA, however you must have taxable compensation for purposes of contributing to an IRA.” The old prohibition on contributions beginning at age 70½ was repealed for tax years beginning after December 31, 2019, as explained in Publication 590-A.
Taxable compensation generally means pay from work that is included under the IRA rules. An RMD is a distribution, not compensation, so taking an RMD does not by itself create IRA contribution eligibility. If you have no qualifying compensation for the year, you cannot make a personal traditional IRA contribution merely because you have retirement assets.
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401(k) rule
You may make elective deferrals while you are working and eligible under your employer’s plan. The plan document controls eligibility, entry dates, payroll procedures, and whether the employer continues accepting deferrals from older employees. Review the summary plan description or ask human resources before changing your payroll election.
Being required to take an RMD does not automatically end 401(k) contributions. Contributions and distributions can occur in the same year, subject to the plan’s terms and statutory limits.
What are the 2026 contribution limits after age 70?
For 2026, the IRS lists a $24,500 regular employee elective-deferral limit for 401(k) plans. The standard catch-up limit for eligible participants age 50 and older is $8,000, making a potential employee total of $32,500 if the plan permits catch-up contributions. A higher $11,250 catch-up applies only to eligible participants ages 60 through 63; it does not apply once you are over 63.
The 2026 IRA catch-up amount is $1,100 for eligible participants age 50 and older. The available data does not provide a single regular IRA limit or deduction threshold because those amounts and phase-outs depend on the tax year and taxpayer circumstances. Check the current IRS Publication 590-A table before contributing.
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| Account feature | 2026 figure or rule | What it means after 70 |
|---|---|---|
| 401(k) regular employee deferral | $24,500 | Available if you are working, eligible and the plan accepts deferrals |
| 401(k) standard catch-up | $8,000 | Generally available at 50 and older, including workers over 70 |
| 401(k) higher catch-up | $11,250 | Limited to eligible ages 60–63, so not available after 63 |
| Traditional IRA catch-up | $1,100 | Available with qualifying taxable compensation and an eligible contribution |
Limits are annual and can change. Coordinate payroll elections and IRA deposits so that contributions do not exceed the applicable limit for the tax year.
Should you take the full 401(k) match before funding an IRA?
In most cases, yes. A matching contribution is additional compensation tied to your own deferral, so contribute enough to receive the entire match before directing extra dollars to an IRA. Confirm the plan’s matching formula, contribution deadline and any service or vesting conditions; a match may be calculated per paycheck or annually.
After capturing the match, compare the marginal tax benefit, fees, investment menu and withdrawal flexibility of the two accounts. If the 401(k) has high administrative costs or a narrow, expensive fund lineup, an IRA may be the better home for additional dollars. If the 401(k) offers low-cost funds and you value payroll automation or a possible still-working RMD delay, keeping more in the plan may be preferable.
When is a traditional IRA contribution deductible after 70?
Age does not determine deductibility. The deduction depends on whether you or your spouse is covered by a workplace retirement plan, your modified adjusted gross income, your tax-filing status and the tax year. The IRS explains these limits in Topic No. 451 and Publication 590-A.
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If you are not covered by a workplace plan, different income rules can apply, including rules based on a spouse’s coverage. Because the thresholds change and depend on filing status, use the IRS table for the applicable year or have a tax professional calculate the deduction before you file.
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A deductible traditional IRA can be attractive when you need a current deduction and the IRA’s investment costs are competitive. A nondeductible contribution may be less compelling than a 401(k) deferral unless the IRA’s investment range or withdrawal control solves a problem your plan cannot.
How do investment choice and fees change the decision?
An IRA generally gives you a broader range of investments and direct control over the provider, beneficiaries and trades. A 401(k) is limited to the menu selected by the employer and may charge plan-level administrative fees, but large plans can negotiate very low-cost institutional funds.
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Compare the plan’s expense ratios, recordkeeping or administrative charges, trading restrictions and available asset classes with the IRA provider’s fund expenses, account fees and transaction costs. A broader IRA menu is not automatically better if it leads to expensive funds, concentrated bets or unnecessary trading.
Also compare practical control. Employer plans can restrict withdrawals or in-service rollovers while you remain employed. An IRA may allow more flexible withdrawals and beneficiary updates, but that flexibility can make it easier to take money out prematurely. Read the plan’s distribution and rollover provisions rather than assuming that a rollover is available.
How do RMD rules affect contributions after 70?
Traditional IRAs and most retirement plans generally require RMDs beginning at age 73 under current IRS guidance. A current-employer plan may permit you to delay RMDs until retirement if its terms allow and you are still working for that employer. The exception is plan-specific; it does not automatically apply to every 401(k) or to an IRA.
Traditional IRA RMDs generally do not pause because you continue working. You can therefore have earned income, make a new IRA contribution, and take an IRA RMD in the same year. Keep the transactions separate in your records: the RMD is a required distribution, while the contribution depends on taxable compensation.
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RMDs can affect your cash-flow plan and tax bracket. If you need portfolio income, an IRA’s withdrawal control may help you choose which investments to sell. If you prefer to leave assets invested in your current employer plan while working, the still-working exception may be valuable. Confirm the applicable rules in the IRS RMD FAQs and your plan document.
Which account is better for different after-70 situations?
| Your situation | Likely priority | Why |
|---|---|---|
| Your employer matches contributions | 401(k) to the match level | Captures the employer contribution before evaluating other features |
| 401(k) has low-cost funds and you want payroll simplicity | Additional 401(k) deferrals | Automatic saving and competitive plan pricing may outweigh IRA flexibility |
| 401(k) fees are high or choices are poor | IRA after the match | Broader selection and potentially lower costs can improve control |
| You need a current tax deduction and qualify | Deductible traditional IRA or 401(k), based on limits | Compare the value of the deduction with plan costs and contribution room |
| You are covered by a plan and your IRA deduction is phased out | 401(k), or evaluate Roth options | An ineligible deduction should not be treated as a tax benefit |
| You are still working for the current employer and want to delay RMDs | Current-employer 401(k), if the plan permits | The still-working exception may apply; an IRA generally does not receive it |
| You want maximum beneficiary and withdrawal control | IRA, subject to tax and investment costs | Personal account administration is often more flexible |
These are decision priorities, not guarantees. A plan with unusually high fees can reverse the usual order, and a deductible contribution can change the after-tax result.
What is a practical contribution order after age 70?
- Confirm earned compensation. Identify the amount of taxable compensation for the year. Do not count an RMD as compensation for IRA purposes.
- Read the 401(k) rules. Verify that you remain eligible, whether deferrals are accepted after 70, the match formula, catch-up availability and any in-service distribution restrictions.
- Set the 401(k) deferral to capture the full match. Check whether the match is per paycheck and whether the plan offers a year-end true-up.
- Calculate IRA deductibility. Gather filing status, modified adjusted gross income and workplace-plan coverage. Use the applicable IRS table for the tax year.
- Compare all-in costs. Include fund expense ratios, recordkeeping charges, account fees and transaction costs, not just the headline investment list.
- Decide where additional savings belong. Favor the account that delivers the better combination of tax treatment, cost, investment choice, RMD administration and access.
- Coordinate RMDs and contributions. Schedule required distributions separately and keep evidence of IRA basis for any nondeductible contributions.
- Recheck each year. Limits, income phase-outs and plan terms can change. Recalculate before the next tax year rather than repeating an old election.
Should you consider a Roth 401(k) or Roth IRA instead?
If available, a Roth 401(k) or Roth IRA changes the comparison because contributions generally use after-tax dollars and qualified withdrawals can receive different tax treatment. Roth eligibility, income limits and compensation rules are separate from traditional IRA rules, so do not assume that qualifying for one automatically qualifies you for the other.
Compare your current marginal tax rate with the tax treatment you expect when withdrawing funds. A Roth option may be useful when a traditional IRA deduction is unavailable, but the current tax cost, plan fees, conversion rules and future RMD treatment should be reviewed together. The IRS’s Publication 590-A provides the relevant IRA contribution framework.
What mistakes should older workers avoid?
- Assuming age 70½ still blocks IRA contributions. That cutoff was repealed for tax years after 2019.
- Treating an RMD as earned income. An RMD does not satisfy the taxable-compensation requirement for an IRA contribution.
- Missing the employer match. Directing money to an IRA first can forfeit available matching dollars.
- Assuming every 401(k) allows continued deferrals. Eligibility and payroll procedures come from the employer plan document.
- Assuming every contribution is deductible. Coverage, income and filing status can reduce or eliminate the deduction.
- Ignoring nondeductible basis. Without accurate records, future IRA distributions can be reported incorrectly.
- Assuming the still-working RMD delay applies to an IRA or old 401(k). It is generally limited to the current employer’s plan and only when the plan permits it.
- Using stale limits. Verify each year’s IRS limits before setting payroll elections or making an IRA deposit.
What information should you gather before deciding?
Collect your birth year, expected taxable compensation, filing status, modified adjusted gross income, workplace-plan coverage, match formula, vesting rules, fund expense ratios, administrative fees, distribution restrictions and beneficiary designations. Add your state tax rate if the contribution or withdrawal decision has a state-tax effect.
For a high-dollar contribution, rollover or Roth conversion, ask a CPA, enrolled agent or fiduciary adviser to model the after-tax result. This article is educational information, not individualized tax or investment advice.
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Bottom line: which is better after age 70?
There is no age-based winner. Contribute to the 401(k) at least enough to receive the full employer match, then choose between additional 401(k) deferrals and a traditional IRA by comparing deductibility, fees, investments, withdrawal control and RMD administration. A traditional IRA remains available with taxable compensation, while a current-employer 401(k) may offer a still-working RMD delay; neither advantage applies automatically, so verify the numbers and the plan terms each year.
Frequently Asked Questions
Does turning 70½ still stop traditional IRA contributions?
No. The age-70½ cutoff was repealed for tax years beginning after December 31, 2019. You may contribute at any age if you have the required taxable compensation.
Can I make an IRA contribution in a year when I take an RMD?
Yes, if you also have qualifying taxable compensation. The RMD is a distribution and does not itself count as compensation, so the two transactions must be evaluated separately.
Can my employer refuse 401(k) contributions after I reach 70?
The employer plan document controls participation and payroll deferrals. Ask human resources whether you remain eligible and whether the plan has any special procedures for older employees.
What happens if my traditional IRA contribution is not deductible?
You receive no current-year deduction and must maintain accurate basis records. Future distributions are then allocated between taxable and nontaxable amounts under the applicable IRS rules.
Can I delay RMDs from every 401(k) while working?
No. The still-working exception generally concerns a current employer’s plan and applies only when the plan permits it. It generally does not pause traditional IRA RMDs or automatically cover a former employer’s plan.
