Catch-Up Contribution Calculator

Frequently Asked Questions

What are 2026 401(k) catch-up contribution limits?

Plan on the IRS 2026 base 401(k) employee deferral plus a standard age-50+ catch-up, and a SECURE 2.0 super catch-up for participants aged 60–63 that is generally the greater of $10,000 or 150% of the regular catch-up (indexed). Confirm exact figures with the IRS before filing - this is educational only.

Who qualifies for the SECURE 2.0 ages 60–63 super catch-up?

Employees who are age 60, 61, 62 or 63 by year-end and whose plan allows catch-up contributions. At age 64 the higher amount drops back to the standard age-50 catch-up.

Does the catch-up apply to IRAs too?

Yes, traditional and Roth IRAs have their own separate age-50 catch-up on top of the base contribution limit, but IRAs do not have the SECURE 2.0 ages 60–63 super catch-up. IRA and 401(k) limits stack - you can fund both.

Are high earners forced to use Roth catch-ups?

Beginning in 2026, SECURE 2.0 requires age-50+ catch-up contributions to be made as Roth (after-tax) for employees whose prior-year Social Security wages exceeded a set threshold (around $145k indexed). Lower earners can still choose pre-tax. This is informational, not tax advice.

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Important Disclaimer: Estimates for informational purposes only.

This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.

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How This Calculator Works

Catch-up contributions let older savers put extra money into tax-advantaged retirement accounts above the standard annual limit. This calculator layers three tiers: the base employee deferral that everyone may use, the age-50 catch-up that kicks in the year you turn 50, and the SECURE 2.0 Act "super catch-up" available only in the narrow window of ages 60 through 63. It applies the same logic to the IRA, which has its own smaller base limit and a flat age-50 catch-up. Enter your age and the 2026 limit figures (all editable, because the IRS adjusts them for inflation), and the tool returns the maximum you may contribute to each account, the extra tax-deferred dollars the catch-up unlocks, and an estimate of the current-year tax saved at your marginal rate. The point is to show, in one view, how much additional room opens up at 50 and how much larger it briefly becomes from 60 to 63.

Formula / Method

The result is purely additive. The 401(k) total is base + catch-up, where the catch-up equals the age-50 amount once you reach 50, is replaced by the enhanced amount during ages 60–63, and is zero before 50. At age 64 the enhanced figure reverts to the ordinary age-50 catch-up. The IRA total is IRA base + IRA catch-up, with the IRA catch-up available from age 50 onward. The "extra tax-deferred amount" is the sum of the two catch-up pieces - the money you could not have sheltered without the catch-up rules. The estimated tax benefit is extra catch-up × marginal rate, a rough current-year deferral value for traditional (pre-tax) contributions; Roth contributions get no upfront deduction but grow tax-free instead. Blank or negative age and base amounts are rejected so the totals never return NaN.

Worked Example

Take a saver who is 61 in 2026, using a $24,500 401(k) base, an $8,000 age-50 catch-up, an $11,250 enhanced ages-60–63 catch-up, a $7,000 IRA base, and a $1,000 IRA catch-up, with a 24% marginal rate. Because 61 falls in the 60–63 window, the 401(k) catch-up is the enhanced $11,250, so the 401(k) total is 24,500 + 11,250 = $35,750. The IRA total is 7,000 + 1,000 = $8,000. The extra tax-deferred amount from both catch-ups is 11,250 + 1,000 = $12,250, and at 24% that defers roughly $2,940 of current-year tax. The same saver at 64 would drop back to the $8,000 catch-up, lowering the 401(k) total to $32,500.

Common Mistakes

Assuming the enhanced 60–63 catch-up continues past 63 - it reverts to the regular age-50 catch-up at 64.

Double-counting employer match against the employee deferral limit; the catch-up here is the employee-elective figure, separate from the total annual additions cap.

Forgetting that high earners may be required to make catch-up contributions as Roth under SECURE 2.0, which changes the tax math.

Mixing up the 401(k) and IRA catch-ups - they are independent limits with very different sizes.

Using stale dollar limits; the IRS indexes these for inflation, so override the defaults with the current year's official numbers.

Tips & FAQ

When does the catch-up start? The full calendar year you turn 50, even if your birthday is in December. Why is 60–63 special? SECURE 2.0 created a larger "super catch-up" for just those four ages to help late savers accelerate before retirement. Can I use both the 401(k) and IRA catch-up in the same year? Yes - they are separate accounts with separate limits, subject to IRA deductibility and income rules. Does the tax estimate apply to Roth? No; the upfront deduction shown is for traditional pre-tax contributions, while Roth trades the deduction for tax-free growth. Always confirm the current official limits and your eligibility; this tool is educational and not tax or financial advice.

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