The “EE” line next to your 401(k) on a paystub stands for employee, and it shows the dollars you elected to defer from this paycheck into your 401(k) account. It’s your money, taken from your gross wages before you ever see it, and sent straight to the plan’s custodian. Any line marked “ER” on the same stub is the employer side: matching or other contributions the company puts in on top.
What the EE Deduction Actually Is
When you enrolled in the plan, you filled out an election telling payroll either a flat dollar amount or a percentage of pay to withhold each period. That election is the “elective deferral” the IRS talks about, and the EE figure on your stub is that withholding for the current pay period. Payroll routes the money to the plan trustee before computing your take-home pay, which is why your net check is smaller than your gross minus taxes alone.
Every dollar on the EE line is 100 percent yours the moment it lands in the account. The plan cannot impose a vesting schedule or a forfeiture on contributions that came out of your own wages. If you quit tomorrow, the full EE balance leaves with you.
At year end, the same deferrals show up in Box 12 of your W-2 with a letter code: D for traditional pre-tax deferrals and AA for Roth deferrals. If your plan offers both and you split your contributions, you’ll see both codes.
Pre-Tax or Roth: Which Flavor Is on Your Stub
Every deferral has to be designated as one of two types, and the designation affects how the EE amount interacts with the rest of your paystub.
Traditional (pre-tax) deferrals are subtracted from your taxable wages for federal income tax. If you earn $80,000 and defer $10,000 pre-tax, your W-2 reports $70,000 in Box 1. You’ll pay ordinary income tax on this money, plus any growth, when you withdraw it in retirement.
Roth deferrals go in after income tax has already been withheld. There’s no break on this year’s return, but qualified withdrawals come out tax-free. A withdrawal is qualified once you’ve held the Roth account at least five years and you’re 59½ or older (with narrow exceptions for disability or death).1Internal Revenue Service. Roth Comparison Chart
You can split between the two in any ratio, but the annual contribution limit applies to the combined total.1Internal Revenue Service. Roth Comparison Chart
Why FICA Still Comes Out of the Deferred Amount
Here’s a point that confuses a lot of people reading their stub for the first time: the EE deferral is not free of all payroll taxes. Social Security (6.2 percent) and Medicare (1.45 percent) are withheld on the full amount of your compensation, including the portion you defer, for both traditional and Roth contributions.2Internal Revenue Service. Are Retirement Plan Contributions Subject to Withholding for FICA, Medicare, or Federal Income Tax The rule sits in 26 U.S.C. § 3121(v), which excludes 401(k) deferrals from the FICA wage exclusion that applies to income tax.3Office of the Law Revision Counsel. 26 USC 3121 – Definitions If you check your stub, you’ll see your Social Security and Medicare withholdings calculated on the pre-deferral wage, not the reduced figure.
EE vs. ER: Why the Two Lines Behave Differently
Most plan statements show EE and ER as separate line items, and the difference matters more than the labels suggest.
EE money came out of your paycheck. ER money came from the company’s own funds, following whatever formula the plan document spells out — a common one is 50 cents on each dollar you defer, up to 6 percent of pay. The ER contribution is real money in your account, but you don’t necessarily own all of it yet.
Employer contributions typically follow a vesting schedule:4Internal Revenue Service. Retirement Topics – Vesting
- Three-year cliff: 0 percent vested until you finish three years of service, then 100 percent.
- Six-year graded: 20 percent per year starting in year two, reaching full ownership after six years.
Leave before you’re fully vested and the unvested share of the ER column is forfeited back to the plan. Your EE column is untouched regardless of tenure.
Safe Harbor plans flip some of this: traditional Safe Harbor employer contributions must be immediately and fully vested.5Fidelity. Guide to Safe Harbor Plan Provisions A plan structured as a Qualified Automatic Contribution Arrangement (QACA) can still impose a two-year cliff on the safe harbor employer piece, so “Safe Harbor” on your plan documents doesn’t automatically mean instant vesting on the ER side.
How Much Can Show Up on the EE Line in a Year
The IRS caps your yearly deferrals and adjusts the caps for inflation. For 2026:6Internal Revenue Service. Retirement Topics – 401(k) and Profit-Sharing Plan Contribution Limits
- Under age 50: $24,500 in elective deferrals.
- Age 50 to 59, or 64 and older: $24,500 plus an $8,000 catch-up, for $32,500 total.7Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
- Age 60 through 63: $24,500 plus an $11,250 “super catch-up” under SECURE 2.0, for $35,750 total. This higher catch-up applies only if your plan has adopted it.7Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
These caps apply to the EE column only. The ER column — matching and profit-sharing contributions — doesn’t count against them. The combined ceiling for everything in the account (EE plus ER) is $72,000 for 2026 under IRC Section 415.8Internal Revenue Service. COLA Increases for Dollar Limitations on Benefits and Contributions
Watch out if you change jobs mid-year or work two jobs with separate 401(k)s. The deferral limit is per person, not per plan. Your employers can’t see each other’s payroll records, so tracking the combined total falls on you.9Internal Revenue Service. How Much Salary Can You Defer if Youre Eligible for More Than One Retirement Plan Go over, and the excess is counted in your taxable income for the contribution year and taxed again at withdrawal unless you pull it out (plus any earnings on it) by April 15 of the following year. Filing an extension does not move that deadline.10Internal Revenue Service. Consequences to a Participant Who Makes Excess Deferrals to a 401(k) Plan
One rule that may change what shows up as pre-tax versus Roth: starting in taxable years beginning after December 31, 2026, SECURE 2.0 requires employees with higher prior-year wages to make all catch-up contributions on a Roth basis. If that applies to you, the pre-tax catch-up option goes away.11Internal Revenue Service. Treasury, IRS Issue Final Regulations on New Roth Catch-Up Rule, Other SECURE 2.0 Act Provisions
What to Check on Your Paystub and Account
A few things are worth confirming once you know what the EE line represents.
Check that the deferral matches your election. If your stub shows a percentage, run the math against your gross pay for the period. If you expected deferrals to come out of a bonus or commission check and nothing was withheld, your plan may exclude those pay types from the definition of eligible compensation. Plan documents vary on this, and errors here are a common fix-it item in IRS audits.12Internal Revenue Service. 401(k) Plan Fix-It Guide – You Didnt Use the Plan Definition of Compensation Correctly for All Deferrals and Allocations
Check the W-2 code at year end. Code D means traditional, code AA means Roth. If you intended one and see the other, raise it with payroll before you file your taxes, because your return relies on the W-2 being right.13Internal Revenue Service. Common Errors on Form W-2 Codes for Retirement Plans
Check that deposits actually arrive in your plan account. Once your employer withholds the EE amount, the money legally stops being company property. Federal law requires employers to deposit elective deferrals into the plan trust as soon as they can reasonably be separated from company assets, and no later than the 15th business day of the month following payday. The Department of Labor expects most employers to move much faster than that outer limit — if payroll can forward the money within a few business days, that shorter window becomes the real deadline.14U.S. Department of Labor. ERISA Fiduciary Advisor – What Are the Fiduciary Responsibilities Regarding Employee Contributions A persistent gap between your pay date and the deposit date in your plan account is worth raising. Employers who are late must correct the problem through the DOL’s Voluntary Fiduciary Correction Program and make you whole for lost earnings.15U.S. Department of Labor. Voluntary Fiduciary Correction Program
Change the rate when you need to. Most plans let you adjust your deferral percentage at any time, though some limit changes to once per quarter or per pay period. Your plan’s summary plan description spells out the frequency, and the change usually takes effect the next full pay cycle after HR or the recordkeeper processes it.