401(k) Contribution Limit 2027: How Much You Can Save

Updated: November 9, 2026

The 401(k) contribution limit 2027 is projected at $25,500, which is the most you can put into your 401(k) from your own pay during the year. That figure is up $1,000 from the official 2026 limit of $24,500, and it comes from Milliman, a large actuarial firm, in its final forecast published on October 15, 2026. The Internal Revenue Service, known as the IRS, has not announced the official 2027 limits yet, so $25,500 is still a projection, not a final rule. The IRS is expected to publish its official notice in mid-November 2026, and this guide will be updated the day that notice lands.

What is the 401(k) contribution limit 2027? The 401(k) contribution limit 2027 is projected at $25,500 for employee contributions, up from $24,500 in 2026. That limit covers only the money you put in from your own paycheck. Your employer match does not count toward it. The figure comes from a Milliman forecast published October 15, 2026, and the IRS has not confirmed it yet.

What the 401(k) Contribution Limit 2027 Means for You

The 401(k) contribution limit 2027 is the ceiling on the money you can defer from your own salary into your 401(k) in one year. It applies to the total across all 401(k) plans you may have. If you change jobs during the year, the $25,500 limit covers both plans combined, not $25,500 at each job. That rule catches many job changers by surprise, so keep track of what you already put in before you set your rate at a new employer.

The limit applies to your elective deferrals, the formal name for the money you choose to take from your paycheck and put into the plan. It covers both pre-tax contributions, which lower your taxable income now, and Roth contributions, which are taxed now but grow tax-free. If your plan offers both types, the $25,500 limit covers the two types combined, so you cannot put $25,500 into each type.

The limit does not cover your employer match, and that is good news, because the match sits on top of your own money and does not use up any of your $25,500 room. The match does count toward a different ceiling, the maximum annual addition, which is projected at $75,000 for 2027. That ceiling covers your money plus employer money together, so most workers will never come near it.

Why the Limit Rose to a Projected $25,500

The 401(k) contribution limit 2027 rose because prices rose, and the IRS formula ties the limit to inflation data from the Bureau of Labor Statistics. The Consumer Price Index for All Urban Consumers, known as CPI-U, rose 3.7 percent for the 12 months that ended on September 30, 2026, according to data released on October 14, 2026. Milliman took that data, estimated the annual increase factor at about 3.5 percent, and applied it to the 2026 limits to produce its final forecast on October 15, 2026.

The IRS rounds the limits to the nearest $500, which is why the rise comes in steps rather than in exact proportion to inflation. When inflation is strong, the limit jumps by $1,000, and when inflation is mild, it may rise by only $500 or stay flat. The 3.7 percent CPI-U reading was strong enough to push the limit up by a full $1,000. The same formula drives the other limits too, which is why the catch-up and the annual addition also rose.

The Per-Paycheck Math: How Much to Put In Each Check

The easiest way to use the 401(k) contribution limit 2027 is to turn $25,500 into a per-paycheck number, because that is how the money leaves your pay. If you are paid every two weeks, you receive 26 paychecks a year, and $25,500 divided by 26 is about $981 per paycheck. If you are paid twice a month, you receive 24 paychecks, and $25,500 divided by 24 is $1,062.50 per check. If you think in monthly terms, $25,500 divided by 12 is $2,125 a month. These are plain arithmetic from the projected figure.

Most plans let you set your contribution as a percentage of pay rather than a dollar amount, so you may need to convert the dollar target into a percentage. Take $25,500, divide it by your annual salary, and multiply by 100. A salary of $85,000 would need a rate of 30 percent, a salary of $127,500 would need 20 percent, and a salary of $170,000 would need 15 percent. Check your plan portal, because many plans cap the percentage you can elect, and some cap it below the rate you would need.

If the full limit is out of reach, do not let the big number discourage you, because any rise in your rate helps your future. A one percent rise is a good first step, and you can raise it again at your next pay rise, before you get used to the higher take-home pay. Many plans offer an auto-escalation feature that raises your rate by one percent each year on its own. Turning it on is one of the simplest ways to build your saving without thinking about it.

How the Employer Match Works With the Limit

The employer match is the most valuable part of many 401(k) plans, and it works alongside the 401(k) contribution limit 2027 rather than inside it. A common match formula is 50 cents for each dollar you put in, up to the first 6 percent of your pay, and other plans match a full dollar up to 3 or 4 percent. The match money comes from your employer, and it does not count toward your $25,500 limit. That means your account can receive more than $25,500 in a year once the match is added.

The first rule of 401(k) saving is to contribute at least enough to get the full employer match, because the match is free money that you lose forever if you do not claim it. If your employer matches the first 6 percent of your pay, and you only contribute 3 percent, you are leaving half of the match on the table. Check your plan document or your benefits portal to find your exact match formula, then set your rate at or above the level that earns the full match.

Vesting is the other match detail to know, because it decides when the match money truly becomes yours. Your own contributions are always fully vested, which means they belong to you from the first day. Employer match money may vest over time, often over three to six years, and if you leave before you are fully vested, you may forfeit part of the match. Check your plan vesting schedule before you make a job decision, because a move a few months early can cost you real money.

What Happens If You Go Over the 401(k) Contribution Limit 2027

Going over the 401(k) contribution limit 2027 is possible, and it usually happens when you change jobs, hold two jobs with two plans, or set your rate too high late in the year. The extra money is called an excess deferral, and the IRS requires you to take it out by April 15 of the next year to avoid being taxed twice on the same money. If you spot the problem early, tell your plan administrator right away and ask for a corrective distribution, which is the refund of the extra amount plus any earnings on it.

The simplest way to avoid an excess is to track your year-to-date contributions, especially if you changed jobs during the year. Add up what you put into your old plan and your new plan, and compare the total to the projected $25,500 limit. If the total is close to the limit, lower your rate at the new plan so you do not cross it before December. Some plans stop your contributions on their own when you hit the limit, but not all do, and a plan cannot know what you put into a different employer’s plan.

If you are age 50 or over, remember that the catch-up limit sits on top of the base limit, so your personal ceiling is higher. The projected catch-up for 2027 is $8,500, which brings the total to $34,000, and workers ages 60 to 63 can use a super catch-up of $11,750, for a total of $37,250. Those amounts are covered in full in our guide to the 401(k) catch-up contribution 2027, including the Roth catch-up rule for higher earners.

A Practical Plan to Reach the Max in 2027

Reaching the full 401(k) contribution limit 2027 takes a plan, and the best plan is one you set up once and let run on its own. Start by logging in to your plan portal today and checking your current rate, your year-to-date total for 2026, and whether you are on track to hit the 2026 limit of $24,500. Then decide your 2027 rate using the math in this guide, and enter it as soon as your plan opens 2027 elections, which for many plans happens in November. If your plan does not open 2027 elections until January, set a reminder for the first week of January.

Next, look at your budget and find the room for the higher rate, because a $981 biweekly deferral is a large sum, and it has to come from somewhere. Look for spending you can trim without pain, such as subscriptions you no longer use or takeout meals you could cook at home. If you carry high-interest credit card debt, read our guide on how to pay off debt fast with low income first. Clearing expensive debt can beat extra 401(k) saving in the short term.

Finally, remember that the 401(k) is only one piece of your retirement picture. The Social Security COLA for 2027 is 3.6 percent. The average retirement benefit will rise by about $75 a month, according to the Social Security Administration press release of October 14, 2026. Our pillar guide, 2027 401(k) limits, covers the full set of projected limits, and our comparison guide, 401(k) vs IRA limits 2027, shows how the IRA fits alongside your 401(k).

How do I set my contribution to reach $25,500? Divide $25,500 by the number of paychecks you get each year. With 26 biweekly checks, that is about $981 per check. With 24 semi-monthly checks, it is $1,062.50 per check. Enter that amount, or the matching percentage of pay, in your plan portal, and check it again when the IRS confirms the official limit.

Frequently Asked Questions

What is the 401(k) contribution limit 2027?

The 401(k) contribution limit 2027 is projected at $25,500 for employee contributions, up from $24,500 in 2026. The figure comes from a Milliman forecast published October 15, 2026, and the IRS has not confirmed it yet.

Is the $25,500 limit official yet?

No, $25,500 is a projection, not an official limit. The IRS has not published its notice for 2027 retirement plan limits as of November 5, 2026. The official figures are expected in mid-November 2026.

Does the $25,500 limit include my employer match?

No, the employer match does not count toward the $25,500 limit. The match counts toward the maximum annual addition, which is projected at $75,000 for 2027. Your $25,500 is only your own money.

How much is $25,500 per paycheck?

With 26 biweekly paychecks, $25,500 is about $981 per check. With 24 semi-monthly paychecks, it is $1,062.50 per check. With 12 monthly paychecks, it is $2,125 a month.

What percentage of my pay do I need to contribute to reach $25,500?

Divide $25,500 by your annual salary and multiply by 100. On a salary of $85,000, that is 30 percent. On a salary of $127,500, it is 20 percent. On a salary of $170,000, it is 15 percent.

What if I change jobs during 2027?

The $25,500 limit covers all your 401(k) plans combined for the year, not $25,500 at each job. Add up what you put into your old plan and your new plan, and keep the total at or under the limit.

What happens if I contribute more than the limit?

The extra money is called an excess deferral. It must be taken out by April 15 of the next year to avoid double tax. Tell your plan administrator as soon as you spot the problem and ask for a corrective distribution.

Can I contribute to a Roth 401(k) and a pre-tax 401(k) in the same year?

Yes, you can split your contributions between pre-tax and Roth, but the $25,500 limit covers both types combined. You cannot put $25,500 into each type, because the limit is a single total.

Does the limit apply to 403(b) and 457 plans too?

Yes, the projected $25,500 elective deferral limit applies to 401(k), 403(b), and most 457 plans. The same IRS notice sets the limits for all three plan types, and the same inflation formula drives the number.

What is the maximum total that can go into my 401(k) in 2027?

The maximum annual addition is projected at $75,000 for 2027, up from $72,000 in 2026. That total covers your contributions, your employer match, and other employer money, but it does not include catch-up contributions.

Should I save the full $25,500 if I can afford it?

If you can afford it, saving the full limit is a strong move, because the money grows tax-deferred or tax-free for decades. But first make sure you have an emergency fund and no high-interest debt, because those needs come before extra retirement saving.

When will the IRS confirm the official 2027 limit?

The IRS usually announces new limits in late October or November. It announced the 2026 limits on November 13, 2025, and the 2025 and 2024 limits on November 1 of the prior year. The 2027 notice is expected in mid-November 2026.

Learn more about how 401(k) plans work on Wikipedia: https://en.wikipedia.org/wiki/401(k)