Think of this as a cheat sheet you can keep open while you fill out your benefits forms. The IRS hasn't announced the official 2027 retirement plan limits yet, but projections are circulating, and open enrollment season is when many employers ask you to set next year's contribution rate. Here's what we know, what's still a guess, and how to turn it into a number on your paycheck.
The status check: official vs. projected
As of October 7, 2026, the IRS hasn't published 2027 limits. According to a Forbes piece from October 6, they're expected in late October or November, likely after the September inflation report arrives on October 14. Everything labeled "2027" below is a projection, mostly from the benefits consultancy Milliman. Treat it as planning material, not a final answer.
The numbers at a glance
| Item | 2026 (current) | 2027 (projected) |
|---|---|---|
| 401(k) employee contribution limit | $24,500 | $25,500 |
| Catch-up, age 50+ | $8,000 | $8,500 |
| Total with catch-up, age 50 to 59 | $32,500 | $34,000 |
| "Super" catch-up, ages 60 to 63 | n/a in this source | $11,750 (total $37,250) |
| Combined employee + employer limit | $72,000 | $75,000 |
| Traditional and Roth IRA limit | $7,500 | likely $7,500 |
| IRA catch-up, age 50+ | $1,100 | not given |
Two notes. First, the 2026 catch-up and total figures are implied by the article's comparisons, so double-check them against your plan documents. Second, IRA limits move only in $500 steps, which is why the projection shows no change. The super catch-up for people ages 60 through 63 comes from SECURE 2.0, the 2022 retirement law.
Projected 2027 employee contribution limits by age band. These are estimates until the IRS announces the official numbers.
Roth catch-up: the rule that catches high earners off guard
Since 2026, workers whose prior-year FICA wages from their employer were above $150,000 must make any catch-up contributions on a Roth basis, meaning after tax rather than pre-tax. The wage threshold is projected to rise to $155,000 for 2027. In practical terms, if you're 50 or older and earn above the line, your catch-up dollars won't lower your current tax bill, though they can grow and be withdrawn tax-free later under Roth rules. If your plan doesn't offer a Roth option, ask HR how they're handling it, since plans must have a way to comply.
Turning an annual limit into a paycheck number
You rarely contribute in one lump. You pick a percentage or a fixed dollar amount per paycheck. Here's the quick math for someone paid biweekly (26 checks a year):
- To reach $24,500: about $942 per paycheck.
- To reach $25,500 (if the projection holds): about $981 per paycheck.
- To reach $34,000 (age 50 to 59 with catch-up): about $1,308 per paycheck.
If you get paid twice a month (24 checks), divide by 24 instead. And if you hit the annual cap early, your employer's match can stall for the rest of the year in some plans. Ask whether your plan has a "true-up" feature that makes up the missed match at year end. If not, spread your contributions evenly so you collect the match every pay period.
Why a small bump still matters
An extra $1,000 a year looks tiny. Over decades, it isn't. Suppose, purely as an illustration, you contribute $24,500 a year versus $25,500 a year for 25 years, with a steady 6% annual return and contributions made at the end of each year. The first path grows to roughly $1.34 million and the second to about $1.40 million, a gap of around $55,000. Real markets don't deliver smooth 6%, so the point isn't the exact figures. It's that small, consistent increases compound.
A hypothetical comparison of two contribution levels, assuming a steady 6% return. Not a forecast.
Where to put the dollars first: a simple order of operations
- Get the full employer match. It's an immediate return you can't get elsewhere. Know your plan's formula and the contribution needed to capture all of it.
- Pay off high-interest debt if you're carrying balances at rates above what you could reasonably earn.
- Build an emergency fund, so you don't have to raid retirement money for a surprise bill.
- Consider an HSA if you have an eligible high-deductible plan. It offers a rare triple tax advantage.
- Return to the 401(k) and raise your rate toward the annual limit, or open an IRA for added flexibility.
This isn't a universal ranking, but it's a sensible default for many people.
Traditional vs. Roth: a quick decision aid
- Traditional (pre-tax): You get a tax break now and pay taxes on withdrawals in retirement. It tends to help if you're in a high bracket today and expect a lower one later.
- Roth (after-tax): No break now, but qualified withdrawals are tax-free. It tends to help if you're early in your career, in a lower bracket today, or want tax diversification.
- A mix gives you flexibility in retirement to manage your taxable income year by year.
Five habits to lock in before January
- Log in to your plan and write down your current contribution rate and year-to-date total.
- Check how much room you have left in 2026, and whether a year-end increase makes sense.
- Set a calendar reminder for when the IRS announces 2027 limits, then adjust your elections.
- Turn on automatic annual increases if your plan offers them. Raising your rate by 1% each year is barely felt.
- Review your investment mix and fees. Target-date funds are a common default, and a low-cost index option can reduce drag.
Common mistakes
- Assuming a projection is final. Wait for the IRS before making maximum-contribution commitments, or set a rate you can adjust.
- Contributing above the limit across multiple jobs. The limit applies to you across all your 401(k) plans, not per employer.
- Ignoring the vesting schedule. Employer money may not be fully yours if you leave early.
- Cashing out when changing jobs. Roll the balance into an IRA or your new plan to avoid taxes and penalties.
The takeaway
The 2027 numbers will probably nudge up, with catch-up amounts rising too. The official figures arrive soon, and in the meantime you can prepare: know your match, decide how much room you have, and set a plan to increase your rate a little each year. Check IRS announcements and your plan's rules before you change any elections.
Source
This article is general education and not tax, legal or investment advice. 2027 figures are projections; confirm official limits and plan rules with the IRS, your plan administrator or a qualified professional. Investing involves risk, including loss of principal.